PRODUCTS

SILICON DIOXIDE (E551)

Silicon Dioxide (E551) occurs almost everywhere on earth.
Silicon Dioxide (E551) is one of the most important and abundant oxides on earth, constituting about 60% weight of the earth’s crust as silica itself or in combination with other metal oxides in silicates.
Silicon Dioxide (E551) commonly is found as sand in the vast ocean and river shores, their beds, deserts, rocks, and minerals.

CAS Number: 7631-86-9
Molecular Formula: O2Si
Molecular Weight: 60.08
EINECS Number: 231-545-4

Silicon Dioxide (E551), Silica, Dioxosilane, Quartz, 7631-86-9, Silica gel, Cristobalite, Silicic anhydride, Tridymite, 14808-60-7, Sand, 112945-52-5, 61790-53-2, 112926-00-8, KIESELGUHR, Diatomaceous silica, Wessalon, Aerosil, Silicon(IV) oxide, Zorbax sil, 60676-86-0, Silica, amorphous, 14464-46-1, Dicalite, Ludox, Nyacol, Amorphous silica, QUARTZ (SIO2), Cristobalite (SiO2), Cab-O-sil, Sillikolloid, Extrusil, Santocel, Sipernat, Superfloss, Acticel, Carplex, Neosil, Neosyl, Porasil, Silikil, Siloxid, Zipax, Aerosil-degussa, Silicon oxide, Aerosil 380, Synthetic amorphous silica, Quartz sand, Rose quartz, Silica particles, 91053-39-3, Cab-o-sil M-5, Silica, fumed, Snowtex O, Silica, colloidal, Tokusil TPLM, Dri-Die, SILICA, VITREOUS, Manosil vn 3, Colloidal Silicon Dioxide (E551), Ultrasil VH 3, Ultrasil VN 3, Aerosil bs-50, Carplex 30, Carplex 80, Snowtex 30, Zeofree 80, Aerosil,Silicon(IV) oxide, Zorbax sil, 60676-86-0, Silica, amorphous, 14464-46-1, Dicalite, Ludox, Nyacol, Amorphous silica, QUARTZ (SIO2), Cristobalite (SiO2), Cab-O-sil, Sillikolloid, Extrusil, Santocel, Sipernat, Superfloss, Acticel, Carplex, Neosil, Neosyl, Porasil, Silikil, Siloxid, Zipax, Aerosil-degussa, Silicon oxide, Aerosil 380, Synthetic amorphous silica, Quartz sand, Rose quartz, Silica particles, 91053-39-3, Cab-o-sil M-5, Silica, fumed, Snowtex O, Silica, colloidal, Tokusil TPLM, Dri-Die, SILICA, VITREOUS, Manosil vn 3, Colloidal Silicon Dioxide (E551), Ultrasil VH 3, Ultrasil VN 3, Aerosil bs-50, Carplex 30, Carplex 80, Snowtex 30, Zeofree 80, Aerosil K 7, Cabosil N 5, Syton 2X, Amorphous silica gel, Positive sol 232, Siliziumdioxid, Aerogel 200, Aerosil 300, Chalcedony, Diatomite, Ludox hs 40, Silanox 101, Silica (SiO2), Vitasil 220, Agate, Positive sol 130M, Silica vitreous, Silicon Dioxide (E551) (amorphous), Aerosil A 300, Aerosil E 300, Aerosil M-300, colloidal silica, Fused silica, Quartz glass, Silica slurry, Silicon Dioxide (E551), fumed, Silicone dioxide, 68855-54-9, Nalfloc N 1050, Quso 51, Silica, amorphous fused, Nalco 1050, Quso G 30, Hydrophobic silica 2482, Kieselsaeureanhydrid, Min-U-Sil, 15468-32-3, SiO2, CCRIS 3699, Silica Gel, 40-63 Micron Particles, Silica aerogel, (SiO2)n, UNII-ETJ7Z6XBU4, ETJ7Z6XBU4, Silicon Dioxide (E551), Amorphous, Silica 2482, hydrophobic, Silicon Dioxide (E551), chemically prepared, EINECS 231-545-4, CAB-O-SIL N-70TS, EPA Pesticide Chemical Code 072605, CI 7811,Aerosil 200, 99439-28-8, CHEBI:30563, AI3-25549, Crystalline silica, N1030, U 333, Silica gel 60, 230-400 mesh, Glass, Silicon Dioxide (E551), colloidal, 15723-40-7, ENT 25,550, [SiO2], Silica, crystalline - fused, Silicagel, Silica gel, pptd.,cryst.-free, 13778-37-5, 13778-38-6, 17679-64-0, Christensenite, Crystoballite, Silica gel desiccant, indicating, Celite, INS-551, Calcined diatomite, MFCD00011232, MFCD00217788, Silica, amorphous,fumed, cryst.-free, Silica, mesostructured, Amethyst, Aquafil, Cataloid, Crysvarl, Flintshot, Nalcoag, Novaculite, Silikill, Vulkasil, Cherts, Snowit, Imsil, Metacristobalite, Quartz silica, alpha-Quartz, Fossil flour, Fumed silica, Quartz dust, Rock crystal, Silica dust, White carbon, SIMETHICONE COMPONENT Silicon Dioxide (E551), Chromosorb P, Tiger-eye, E-551, Vulkasil S, Celite superfloss, Cristobalite dust, Corasil II, Silver bond B, Cab-O-sperse, alpha-Cristobalite, alpha-Crystobalite, Gold bond R, (SiO2), Cabosil st-1, Silica Standard: SiO2 @ 100 microg/mL in H2O, Sil-Co-Sil, Silica Standard: SiO2 @ 1000 microg/mL in H2O, Siderite (SiO2), Tridymite 118, Cab-O-grip II, Tridimite [French], HI-Sil, Amorphous silica dust, Silicon Oxide Hollow Nanospheres, Nyacol 830, Sibelite M 3000, Sibelite M 4000, Sibelite M 6000, Quazo puro [Italian], SILICA, AMORPHOUS (IARC), SILICA, AMORPHOUS [IARC], Caswell No. 734A, Sicron F 300, Sikron F 100, Spectrosil, Accusand, Coesite, Fuselex, Nalcast, Nyacol 1430, Optocil, Quartzine, Quarzsand, Rancosil, Suprasil, Tridimite, Siltex, Vitreous quartz, Vitreous silica, Tridymite dust, W 12 (Filler), beta-Quartz, Fused quartz, MIN-U-sil alpha quartz, Quartz-beta, Amorphous quartz, Dri-Die insecticide 67, Quazo puro, Silica, amorphous, fumed, Vitrified silica, Pyrogenic colloidal silica, Silica, fused, Suprasil W, Vitreosil IR, Borsil P, Dioxide, Silicon, Silane, dioxo-, Crystallized Silicon Dioxide (E551), Optocil (quartz), CP-SilicaPLOT, Sand, Sea, Silicon oxide, di- (sand), Quarzsand [German], S-Col, Admafine SO 25H, Admafine SO 25R, Admafine SO 32H, Admafine SO-C 2, Admafine SO-C 3, Cristobalite asbestos, Keatite (SiO2), Sg-67, Tridymite (SiO2), Fumed silica, crystalline-free, Stishovite (SiO2), ED-C (silica), Fuselex ZA 30, As 1 (silica), CCRIS 2475, DQ12, Agate (SiO2), Celite 545, Fumed synthetic amorphous silica, Silica, crystalline - tridymite, FB 5 (silica), Fuselex RD 120, Corning 7940, Microcrystalline quartz, Synthetic amorphous silica, fumed, Denka F 90, Denka FB 30, Denka FB 44, Denka FB 74, Denka FS 30, Dri-Die 67, Silica gel spherical, 40-75 mum particle size, WGL 300, Cryptocrystalline quartz, FB 20 (silica), Elsil 100, F 44 (filler), D & D, SF 35, Elsil BF 100, F 125 (silica), F 160 (silica), Fuselex RD 40-60, Silica, amorphous, fused, Silica; Silica colloidal anhydrous; Silicium dioxide, EINECS 238-455-4, EINECS 238-878-4, EINECS 239-487-1, 43-63C, HK 400, TGL 16319, Silica, crystalline quartz, Silicon Dioxide (E551) (vitreous), Silica, amorphous, fumed, cryst.-free, Silica, crystalline, quartz, Silica, crystalline: quartz, tripolite, GP 7I, Precipitated amorphous silica, Chrysoprase, Ronasphere, Silica, crystalline tridymite, Speriglass, Carneol, Citrine, Kieselgel, NaturasilScars, Sandstone, Silica, crystalline - quartz, Silicea, Spherica, AF-SO 25R, Quartz [Silica, crystalline], Siilca, Zorbax, quartz-glass, silica sand, Silicom dioxide, Silica flour (powdered crystalline silica), Silica marina, Silica, crystalline: tridymite, silica-gel, Fused-silica, pyrogenic silica, Silica,fumed, GP 11I, RD 8, silica-, Fine grain sand, QuarZ, Super-cel, Fire Agate, Greensil K, Sea sand, silica gel white, W 006, Silicon di-oxide, Tridymite [Silica, crystalline], Zelec Sil, Chrysolith 6X, CRS 1102RD8, Silica Dispersion, SiO2 Nanopowder, Silica gel G, Silica, crystalline: cristobalite, Silotrat-1, Kieselsaureanhydrid, SiO2 Nanospheres, Silica gel 60 ADAMANT(TM) on TLC plates, with fluorescent indicator 254 nm, Silicea 3X, Silicea 6C, Silicea 6X, Chrysoprase8113, EF 10, Fossil Flour MBK, FS 74, Honest-Paste Kids, MR 84, Quartz 8, Silica, crystalline - cristobalite, Silica Microspheres, Aventurine8101, Cristobalite [Silica, crystalline], Silicea Kit Refill, Sorbosil AC33, Sorbosil AC77, Sorbosil BFG50, Sorbosil TC15, Sand, white quartz, Sandstone8144, Silicea 12X, Silicea 30X, Amorphous silica: Pyrogenic (fumed), EINECS 262-373-8, Silica gel, ASTM, silicon (iv) oxide, Methyl3-oxohexanoate, Siliceous sand, CP, Sorbosil AC 35, Sorbosil AC 37, Sorbosil AC 39, BF 100, EQ 912, Neosil CBT50, Neosil CBT60, Neosil CBT60S, Neosil CBT70, Neosil CT11, Neosil PC10, Neosil PC50S, QG 100, Quartz 30, RD 120, Rose Quartz8142, AEROSIC, Aerosil 130, Aerosil 255, ARSIL, BIOSILICA, Carneol8109, Citrine8114, DALTOSIL, DUROSIL, HAIRBALLS, KOMSIL, MICROSIL, MILOWHITE, MIZUKASIL, NOVAKUP, OSCAL, PHOTOX, PREGEL, REOLOSIL, ROMSIL, SIFLOX, SILEX, SILICAFILM, SILICALITE, Silicea 200C, Silicea 200X, Silicea8012, SILIPUR, SILMOS, SIONOX, SNOWTEX, Sorbpso; BFG10, SYTON, TOSIL, UNISIL, VERTICURINE, ZEOPAN, Fire Agate8116, Tigers Eye8152, NaturasilStretch Marks, Wacker HDK H30, Celite 503, ENTERO TEKNOSAL, Spheron PL-700, AEROSIL PST, CATALOID SA, CATALOID SN, NALCAST PLW, SANTOCEL CS, SNOWTEX OXS, SORBSIL MSG, ADELITE A, ELKEM SAND, FINESIL B, FUJIGEL B, FUSELEX X, GAROSIL GB, GAROSIL N, HIMESIL A, NEOSIL XV, NEOSYL GP, NIPSIL AQ, NIPSIL ER, NIPSIL ES, NIPSIL LP, NIPSIL NA, NIPSIL NS, NIPSIL NST, SANTOCEL Z, Silicon Dioxide (E551) Powder, SILTON AK, SNOWTEX AK, SNOWTEX C, SNOWTEX N, SNOWTEX OL, TOKUSIL GU, TOKUSIL N, TOKUSIL NR, TOKUSIL P, TOKUSIL U, TOKUSIL UR, VULKASIL C, Wacker HDK T 30, Wacker HDK V 15, LUDOX LS, LUDOX TM, NEOSIL A, Sea sand, acid washed, Silica, fumed, powder, Silicon Dioxide (E551) (NF), SILTON A, SYTON FM, CRYSTALITE 5V, CRYSTALITE 5X, GLASGRAIN SG-A, IMSIL H, Neosil CL2000, Sand 50-70 mesh, Silica, Anhydrous 31, SILICEA200ck, Spheron N-2000, Spheron P-1500, TOSIL P, Cab-O-Sil EH-5, Cab-O-Sil M-5P, Cab-O-Sil MS55, F 44, NIPSIL VN3LP, Silica gel, large pore, TOKUSIL GU-N, TOKUSIL GV-N, Wacker HDK N 20P, Wacker HDK N 25P, Y 40, KAOWOOL RIGIDIZER, CRYSTALITE FM 1, CRYSTALITE NA 1, HYPERSIL 3, HYPERSIL 5, MSP-X, Silica 6 Special Order, ULTRASIL VN 3SP, Hollow Silica Nanosphere, MIZUKASIL NP 8, MIZUKASIL SK 7, Silicon Oxide Dispersion, Silicon Oxide Nanopowder, CARPLEX FPS 1, CARPLEX FPS 3, NIPSIL VN 3AQ, SI-O-LITE, SILICA [INCI], SUPERNAT 22LS, SYLOID SILICA GEL, ULTRASIL VN 2, CARPLEX CS 5, CRYSTALITE CMC 1, silica (Silicon Dioxide (E551)), silica fibers (biogenic), SILICATE [VANDF], Silicon Dioxide (E551) (silica), SUPERNAT 50S, TOKUSIL AL 1, Celite (R) 545, MIZUKASIL P 78A, MIZUKASIL P 78F, Silica gel, ACS reagent, Wacker HDK V 15 P, Celite(R) 512 medium, HYPERSIL 10, Kieselguhr, -325 mesh, NIPSIL VN 3, OPRECARE 12, OPRECARE 24, SAND [INCI], SANTOCEL 54, SANTOCEL 62, Silica, 99.8%, SILNEX NP 8, SYLOBLOC 41, SYLOBLOC 44, SYLOBLOC 46, SYLOBLOC 47, TONICPET 12, ADELITE AT 20A, ADELITE AT 20Q, ADELITE AT 30S, CATALOID HS 40, CATALOID SI 40, HARIMIC SWC 05, MIZUKASIL P 78, Quartz 60 Special Order, SBA-15 Molecular Sieve, Silica 30 Special Order, Silicon Dioxide (E551) Nanopowder, SNOWTEX NCS 30, ADELITE 30, ADELITE AT 30, AEROSIL BS 50, AEROSIL FK 60, AEROSIL OX 50, CARPLEX 67, DSSTox_CID_9677, HISILEX EF 10, Hollow Silica Microspheres, LUDOX 40HS, NIPSIL SS 50A, Silicon Dioxide (E551) Dispersion, SILTON A 2, SILTON LP 75C, SILTON R 2, SNOWTEX 40, SUPERNAT 250S, TULLANOX A 50, ZEOTHIX 95, ZORBAX PSM 60, Cab-O-Sil LM-130, AEROSIL 130V, AEROSIL 200V, CATALOID SI 350, Epitope ID:158537, FINESIL E 50, FINESIL X 37, MIZUKASIL P 526, MIZUKASIL P 527, MIZUKASIL P 801, MIZUKASIL P 802, NEOSYL 81, NIPSIL SS 10, NIPSIL SS 50, PROTEK-SORB 121, REOLOSIL 202, REOLOSIL QS 102, SIDENT 12, Silica, fumed, hydrophobic, Silicon Dioxide (E551) Nanospheres, SOLEX (M), SYLODENT 704, SYTON 30X, SYTON W 3, TULLANOX TM 500, ZEOSIL 175MP, ZEOSIL 75, ADELITE AD 321, AEROSIL A 200V, AEROSIL OK 412, AEROSIL TT 600, CAB-O-SIL HS 5, CAB-O-SIL M 5, CAB-O-SIL N 5, LUFILEN E 100, NALCOAG 1034A, Nano Silicon Dioxide (E551) Powder, NIPSIL B 220A, NIPSIL E 150J, NIPSIL E 150K, NIPSIL E 150V, NIPSIL E 200A, NIPSIL E 220A, SILCRON G 100, SILCRON G 640, Silica gel 40-60Angstoms, TIX-O-SIL 33J, TIX-O-SIL 38A, AROGEN 500, CAB-O-SIL LM 50, DSSTox_RID_78805, EMSAC 460S, EMSAC 465T, IMSIL A 10, IMSIL A 15, IMSIL A 25, NEOSYL 186, NEOSYL 224, NUCLEOSIL 100-5, QUSO WR 55, QUSO WR 82, silica gel 60g (type60), silica gel 60h (type60), SSA 1, SSK 5, SYTON W 15, SYTON W 30, SYTON X 30, ZEOSYL 100, ZEOSYL 200, CAB-O-SIL MS 75D, CAB-O-SIL N 70TS, CARPLEX 1120, CELATOM(R) FW-60, DSSTox_GSID_29677, FILLITE 52/7, IMSIL A 108H, MIN-U-SIL 15, MIN-U-SIL 30, NALCO 2SS374, NALCO CD 100, NALCOAG 1030, NALCOAG 1050, NALCOAG 1060, NALCOAG 1115, NALCOAG 1129, NALCOAG 1140, NIPSIL E 150, NIPSIL E 200, NIPSIL G 300, NYACOL 2034A, P 2 (SILICA), Pesticide Code 072605, Silicon Dioxide (E551), acid washed, Silicon Dioxide (E551), acid-washed, VITASIL 1500, VITASIL 1600, ZEOSYL 1000V, BS 30 (FILLER), BS 50 (SILICA), CAB-M 5, Diatomaceous earth non-washed, EP 10TP, NALFLOC N 1030, SILICA GEL [WHO-DD], Silicon Dioxide (E551) [II], Silicon(IV) oxide (SiO2), 2080 Dentistry Night Fresh, 92283-58-4, LO-VEL 24, LO-VEL 27, PHYENLIMCIDE TOOTHPASTE, Silicon Dioxide (E551), Precipitated, EXSIL A 300, F 40 (SILICA), FILLITE 200/7, IATROBEADS 6RS8060, IMSIL A 108, NALCO 1034A, NALCO 84SS258, Silica fibers, 1/4'' long, Silicon Dioxide (E551) [FCC], Silicon(IV) oxide, amorphous, TIX-O-SIL 375, TS 100 (SILICA), ZEOSYL 2000, 2080 Dentistry Night Repair, CATALOID OSCAL 1432, Kieselguhr, calcined, purified, Silica gel, CP, blue, beads, Silica Gel 60-100 MESH, Silica, fused, respirable dust, 25wt% Silicon Oxide in Water, AW Standard Super-Cel(R) NF, B-6C, FK 320DS, HDK-V 15, HSDB 682, IMSIL 1240, INS NO.551, MCM-41, NALCO 1115, NALCO 1129, NALCO 1140, OSCAL 1132, OSCAL 1232, OSCAL 1432, OSCAL 1433, OSCAL 1434, Silica gel, CP, white, beads, Silicates (<1% crystalline silica):Graphite, natural, SIPUR 1500, SYLOID 244 [VANDF], ZEO 49, Hyflo(R) Super-Cel(R), CP, Silicon Dioxide (E551) (SIO2), Silicon Dioxide (E551) [VANDF], CHEMBL3188292, Cinis comp A 21 Special Order, DTXSID1029677, DTXSID6050465, Filter agent, Celite(R) 545, IATROBEADS GRS 80100, Sand, white quartz, CP, beads, silica gel 60gf254(type60), silica gel 60hf254(type60), Silicagel 60A 40-63 micron, SILICONE DIOXIDE [VANDF], B-CEL 300, Quarz cryst., 0.6-1.3 mm, Silica gel, CP, blue, bead size, medium, Silica gel, technical grade, 6-16 mesh, Silicon oxide powder, 99% Nano, 20 nm, SONATURAL ALL KILL BLACKHEAD CLEAR, CAS-7631-86-9, Silica gel desiccant, -3+8 mesh granules, Silica gel, 12-24 mesh (liquid drying), Silica gel, for column chromatography, 60, Celite(R) 281, filter aid, flux calcined, Celite(R) S, filter aid, dried, untreated, Chromosorb(R) W/AW-DMCS, 80-100 mesh, HY-154739, Silica gel desiccant, -6+12 mesh granules, Silicon Dioxide (E551), purum p.a., acid purified, White Silica Gel Beads, 3 mm (2-5 mm), CS-0694521, Dr. Zenni GGOGGOMA ToothpasteVanilla flavor, F 307, FT-0624621, FT-0645127, FT-0689145, FT-0689270, FT-0696592, FT-0696603, FT-0697331, FT-0697389, FT-0700917, S0822, Silica gel, high-purity grade, pore size 60 ??, 220-440 mesh particle size, 35-75 mum particle size, for flash chromatography, Silica gel, high-purity grade, pore size 60 ??, 230-400 mesh particle size, 40-63 mum particle size, for flash chromatography, Silica gel, high-purity grade, pore size 60 ??, 5-25 mum particle size, without binder, for thin layer chromatography, Silica gel, high-purity grade, pore size 60 ??, 70-230 mesh, 63-200 mum, for column chromatography, Silica gel, high-purity grade, Type G, with ~13% calcium sulfate, for thin layer chromatography, Silica gel, high-purity grade, with ~15% calcium sulfate and fluorescent indicator, GF254, for thin layer chromatography, Silica gel, HPLC grade, spherical, 2.2 micron APS, 80 angstroms, 99.99+% , S.A. 470m2/g, P.V. 0.95cc/g, Silica gel, HPLC grade, spherical, 5 micron APS, 120 angstroms, 99.99+% , S.A. 340m2/g, P.V. 1.00cc/g, Silica gel, HPLC grade, spherical, 5 micron APS, 70 angstroms, 99.99+% , S.A. 500m2/g, P.V. 0.95cc/g, Silica gel, HPLC/UHPLC grade, spherical, 1.6 micron APS, 110 angstroms, 99.99+%, S.A. 340m2/g, P.V. 0.95cc/g, Silica gel, preparative chromatography grade, spherical, 20 micron APS, 150 angstroms, 99.99+%, S.A. 270m2/g, P.V. 1.00cc/g, Silica gel, technical grade (w/ Ca, ~0.1%), 60??, 230-400 mesh particle size, Ca 0.1-0.3 %, Silica gel, technical grade, pore size 60 ??, 230-400 mesh particle size, 40-63 mum particle size, Silica gel, TLC high purity grade, with gypsum binder & fluorescent indicator,12 Micron APS,S.A. 500-600m2/g,60A,pH 6.5-7.5, Silica gel, TLC high purity grade, with gypsum binder, 12 Micron APS, S.A. 500-600m2/g, 60A, pH 6-7, Silica gel, TLC high purity grade, without binder, with fluorescent indic., 12 Micron APS, S.A. 500-600m2/g, 60A, pH 6.5-7.5, Silica gel, TLC high-purity grade, 5-25 mum, pore size 60 ??, with gypsum binder and fluorescent indicator, pore volume 0.75 cm3/g, Silica, mesoporous SBA-15, <150 mum particle size, pore size 4 nm, Hexagonal pore morphology, Silica, mesoporous SBA-15, <150 mum particle size, pore size 6 nm, Hexagonal pore morphology, Silica, mesoporous SBA-15, <150 mum particle size, pore size 8 nm, Hexagonal pore morphology, Silicon Dioxide (E551), nanopowder (spherical, porous), 5-15 nm particle size (TEM), 99.5% trace metals basis, Silicon Dioxide (E551), single crystal substrate, optical grade, 99.99% trace metals basis, <0001>, L x W x thickness 10 mm x 10 mm x 0.5 mm, Silicone sol(SiO2, Purity: >99.9%, Diameter: 12nm(lock), Solvent: Propylene Glycol Monopropyl Ether), Silicone sol(SiO2, Purity: >99.9%, Diameter: 12nm, Solvent: Bisphenol F epoxy resin,30 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 12nm, Solvent: Bisphenol F epoxy resin,40 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 12nm, Solvent: Ethylene glycol monopropyl ether), Silicone sol(SiO2, Purity: >99.9%, Diameter: 12nm, Solvent: Methyl isobutyl ketone,30 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 12nm, Solvent: Methyl isobutyl ketone,40 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 12nm, Solvent: Propylene Glycol Monomethyl Ether,30 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 12nm, Solvent: Propylene Glycol Monomethyl Ether,42 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 12nm, Solvent: Propylene Glycol Monopropyl Ether), Silicone sol(SiO2, Purity: >99.9%, Diameter: 22nm, Solvent: Propylene Glycol Monomethyl Ether), Silicone sol(SiO2, Purity: >99.9%, Diameter: 45nm, Solvent: Methyl ethyl ketone, 30 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 45nm, Solvent: Methyl ethyl ketone, 40 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 45nm, Solvent: Methyl isobutyl ketone, 30 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 45nm, Solvent: Methyl isobutyl ketone, 40 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 45nm, Solvent: Propylene Glycol Monomethyl Ether), Silicone sol(SiO2, Purity: >99.9%, Diameter: 80nm, Solvent: Methyl ethyl ketone, 30 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 80nm, Solvent: Methyl ethyl ketone, 40 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 80nm, Solvent: Methyl ethyl ketone, 45 wt.%), Silicone sol(SiO2, Purity: >99.9%, Diameter: 80nm, Solvent: Propylene Glycol Monopropyl Ether).

Silicon Dioxide (E551) when used as a food additive, is a compound consisting of silicon and oxygen.
In the context of food, Silicon Dioxide (E551)'s commonly used as an anti-caking agent, where it helps prevent the formation of lumps or clumps in powdered or granulated food products.
This property makes Silicon Dioxide (E551) useful in various food items such as salt, spices, and powdered drink mixes.

Silicon Dioxide (E551) exists in several structural forms: polymorphic crystalline silica, synthetic quartz crystals, amorphous silica, and vitreous silica.
This classification is not complete as there are other forms of silica synthesized for specialized applications.
Silicon Dioxide (E551), also known as silica, is an oxide of silicon with the chemical formula SiO2, commonly found in nature as quartz.

In many parts of the world, silica is the major constituent of sand.
Silicon Dioxide (E551) is abundant as it comprises several minerals and synthetic products.
All forms are white or colorless, although impure samples can be colored.

Silicon Dioxide (E551) is a common fundamental constituent of glass.
A Silicon Dioxide (E551) made up of linear triatomic molecules in which a silicon atom is covalently bonded to two oxygens.
Silicon Dioxide (E551), is an anti-caking substance, used for clarification and stabilisation.

Silicon Dioxide (E551) is the chemical formula of a group of inorganic polymers where each silicon atom is surrounded by 4 tetrahedrally arranged oxygen atoms.
The average stoichiometric composition of the compound is SiO2.
Silicon Dioxide (E551) is the most abundant mineral in the earth’s crust, because sand is composed of silica.

Silicon Dioxide (E551) is found in nature in three forms: crystalline, polymorphic and various amorphous or microcrystalline forms.
Silicon Dioxide (E551) is obtained by acidifying a solution of sodium silicate in water.
Unstable silicic acid is formed, which on removal of water forms a colloidal solution from which hydrated SiO2 precipitates.

The substance occurs as translucent granules or as a powder with a porous surface and pores of various sizes.
After drying Silicon Dioxide (E551) contains 4% water.
The adsorption capacity of silica gel varies according to how the gel is obtained, according to the concentration of the solution from which it was precipitated or according to the reaction temperature or pH of the wash water.

Silicon Dioxide (E551) is considered safe for consumption in regulated amounts.
It's important to note that Silicon Dioxide (E551) is a naturally occurring compound and is found in many forms, including as quartz, sand, and certain types of rocks.
Silicon Dioxide (E551), also known as silica, is an oxide of silicon, most commonly found in nature as quartz and in various living organisms.

In many parts of the world, silica is the major constituent of sand.
Silica is one of the most complex and most abundant families of materials, existing as a compound of several minerals and as a synthetic product.
Notable examples include fused quartz, fumed silica, silica gel, and aerogels.

Silicon Dioxide (E551) is used in structural materials, microelectronics, and components in the food and pharmaceutical industries.
Silicon Dioxide (E551), also known as silica or SiO2, is a naturally occurring compound.
Silicon Dioxide (E551)'s made of silicon and oxygen.

Both elements are abundant on our planet.
Silicon Dioxide (E551) is an amorphous substance, produced either synthetically or by a vapour-phase hydrolysis process, yielding pyrogenic silica.
The dry process produces silica precipitate, silica gel or hydrated silica.

Silicon Dioxide (E551) is mainly obtained in the anhydrous state, while the other products in the wet process are obtained as hydrates or contain water absorbed at the surface.
Silicon Dioxide (E551), or silica, is a combination of silicon and oxygen, two very abundant, naturally occurring materials.
There are many forms of silica.

They all have the same makeup but may have a different name, depending on how the particles arrange themselves.
In general, there are two groups of silica: crystalline silica and amorphous silica.
Silicon Dioxide (E551) is found naturally in the ground and in our bodies.

There isn’t evidence that it’s dangerous to ingest it through food, but inhaling its dust particles could lead to lung problems.
Silica is a common additive in food production (E551), where it is used primarily as a flow agent in powdered foods, or to adsorb water in hygroscopic applications.
Silicon Dioxide (E551) is used as an anti-caking agent in powdered foods such as spices and non-dairy coffee creamer.

Silicon Dioxide (E551) is the primary component of diatomaceous earth.
Colloidal silica is also used as a wine, beer, and juice fining agent.
Silicon Dioxide (E551), also known as silica, is a natural compound made of two of the earth’s most abundant materials: silicon (Si) and oxygen (O2).

Silicon Dioxide (E551) is most often recognized in the form of quartz.
Silicon Dioxide (E551)’s found naturally in water, plants, animals, and the earth.
The earth’s crust is 59 percent silica.

Silicon Dioxide (E551) makes up more than 95 percent of known rocks on the planet.
Silicon Dioxide (E551)’s even found naturally in the tissues of the human body.
Though it’s unclear what role it plays, it’s thought to be an essential nutrient our bodies need.

Silicon Dioxide (E551) is primarily used as an anti-caking agent to prevent the clumping or sticking together of particles in powdered or granulated food products.
This helps maintain the free-flowing nature of these products.
Silicon Dioxide (E551) is naturally present in many food items, including fruits, vegetables, whole grains, and certain beverages.

Silicon Dioxide (E551) is a common component of the Earth's crust and is found in various forms, such as sand and quartz.
In the food industry, Silicon Dioxide (E551) may be used in different physical forms, including amorphous (non-crystalline) and crystalline.
The choice of form depends on its intended use and the properties required in the final food product.

Silicon Dioxide (E551) has been evaluated by food safety authorities, and it is generally recognized as safe (GRAS) when used in accordance with approved limits.
Regulatory bodies set specific limits on the amount of E551 that can be added to food products.
Silicon Dioxide (E551) has various industrial applications beyond the food industry.

Silicon Dioxide (E551) is used in pharmaceuticals, cosmetics, and as a desiccant (moisture-absorbing agent).
Additionally, Silicon Dioxide (E551) finds applications in the production of glass, ceramics, and as a carrier for certain flavors or active ingredients.
Particle size can influence the performance of Silicon Dioxide (E551) in terms of its anti-caking properties and other functionalities.

In pharmaceutical products, silica aids powder flow when tablets are formed. In cosmetics, it's useful for its light-diffusing properties and natural absorbency.
Hydrated silica is used in toothpaste as a hard abrasive to remove tooth plaque.
Silicon Dioxide (E551) works as an anti-caking agent, and manufacturers add small amounts to some foods, cosmetics, and more to prevent products from clumping and binding together.

Silicon Dioxide (E551) is mostly obtained by mining, including sand mining and purification of quartz.
Silicon Dioxide (E551) is suitable for many purposes, while chemical processing is required to make a purer or otherwise more suitable (e.g. more reactive or fine-grained) product.
Silicon Dioxide (E551), also known as synthetic amorphous silica (SAS), is widely used in food products as a thickener, anticaking agent, and carrier for fragrances and flavors.

Derived from naturally occurring quartz, Silicon Dioxide (E551) is the most abundant mineral in the earth’s crust.
Silicon Dioxide (E551)’s also naturally found in water and plant-based foods, especially cereals like oats, barley and rice.
Silicon Dioxide (E551) should not be confused with silicone, a plastic material that contains silicon and other chemicals used to make breast implants, medical tubing and other medical devices.

Silicon Dioxide (E551) is a compound that’s naturally found in the earth’s crust in a crystalline state.
Silicon Dioxide (E551) can be obtained from mining and purifying quart.
Silicon Dioxide (E551) is also found in some organisms and animals, the human body (it’s a component of human ligaments, cartilage and musculature), plus some plants (especially grains) and in drinking water.

Silicon Dioxide (E551)’s created in labs and used as a common food additive, found in things like baking ingredients, protein powders and dried spices.
Silicon Dioxide (E551) has a variety of uses in industries ranging from food and cosmetics to construction and electronics.
Silicon Dioxide (E551) is a food additive authorized as an anti-caking agent.

Silicon Dioxide (E551)'s a nanomaterial, like titanium dioxide dye (E171), which EFSA has recently re-evaluated for toxicity.
Silicon Dioxide (E551) goes by the common name silica.
Silicon Dioxide (E551)’s also sometimes referred to as silicic anhydride or silicate.

Silicon Dioxide (E551) comes in several forms, depending on how it’s manufactured, including:
Crystalline silica, which is usually obtained from mining quartz.
Silicon Dioxide (E551) actually comprises a high percentage of the Earth’s crust, so this type is widely available.

This isn’t the form used in foods and can be problematic when inhaled over long periods of time.
Silicon Dioxide (E551), found in the earth’s sediments and rocks.
This also forms diatomite, Silicon Dioxide (E551) or diatomaceous earth, which is made from deposits that accumulate over time in the sediment of rivers, streams, lakes and oceans.

This is the type most often used as an anti-caking agent to keep powdered foods free-flowing and to prevent moisture absorption.
Silicon Dioxide (E551), which is used in tablet-making.
This type is found in supplements because it has anti-caking, adsorbent, disintegrant and glidant effects.

Silicon Dioxide (E551) is the most abundant mineral on earth and can be found naturally in many plants.
Silicon Dioxide (E551) is synthetically obtained from a vapor-phase hydrolysis reaction producing fumed silica.
Another process to obtain synthetic Silicon Dioxide (E551) is through a wet process to form hydrous silica.

Silicon Dioxide (E551), is a colorless crystalline substance with a high level of hardness and strength.
Silicon Dioxide (E551) does not react with water and is resistant to acids.
Silicon Dioxide (E551) is generally insoluble in water and organic solvents.

This insolubility is one of the reasons Silicon Dioxide (E551) is used as an anti-caking agent, as it remains in its particulate form, preventing the formation of clumps in dry products.
Silicon Dioxide (E551) is chemically inert, meaning it does not react with other substances in the food.
This makes it suitable for use in a wide range of products without affecting the taste or chemical composition of the food.

Some forms of Silicon Dioxide (E551) may exist in hydrated or colloidal forms.
These hydrated forms may have specific applications in different industries, including food and beverages.
In some cases, Silicon Dioxide (E551) may be used in combination with other anti-caking agents or additives to achieve synergistic effects, enhancing the overall anti-caking performance.

Silicon Dioxide (E551) is used in pharmaceutical formulations as a flow agent and to improve the compressibility of certain drugs during tablet manufacturing.
In food products, Silicon Dioxide (E551) is often listed on ingredient labels as "silica" or "Silicon Dioxide (E551)."
The specific particle size and form may also be indicated, especially in cases where different forms are available for specific applications.

Ongoing research in materials science and nanotechnology may lead to the development of new forms or applications of Silicon Dioxide (E551), both in the food industry and other sectors.
Silicon Dioxide (E551) is artificially produced amorphous Silicon Dioxide (E551), also known as synthetic amorphous silica (SAS).
Over the decades, two production methods (wet chemical and pyrogenic) have become established, for which the resulting E 551 products are chemically identical.

The food additive is available for downstream processing as a powder or a granulate.
Silicon Dioxide (E551) is important to note here that E 551 is not what is known as colloidal silica, which is a liquid with extremely finely divided nanoparticles.
In the majority of Silicon Dioxide (E551)s, the silicon atom shows tetrahedral coordination, with four oxygen atoms surrounding a central Si atom (see 3-D Unit Cell).

Thus, Silicon Dioxide (E551) forms 3-dimensional network solids in which each silicon atom is covalently bonded in a tetrahedral manner to 4 oxygen atoms.
In contrast, CO2 is a linear molecule.
The starkly different structures of the dioxides of carbon and silicon are a manifestation of the double bond rule.

Based on the crystal structural differences, Silicon Dioxide (E551) can be divided into two categories: crystalline and non-crystalline (amorphous).
In the form of crystalline, Silicon Dioxide (E551) can be found naturally occurring as quartz, tridymite, cristobalite, stishovite, and coesite.
On the other hand, amorphous silica can be found in nature as opal, infusorial earth and diatomaceous earth.

Silicon Dioxide (E551) glass is the form of intermediate state between this structure.
All of this distinct crystalline forms always have the same local structure around Si and O.
In α-quartz the Si–O bond length is 161 pm, whereas in α-tridymite it is in the range 154–171 pm.

The Si–O–Si angle also varies between a low value of 140° in α-tridymite, up to 180° in β-tridymite. In α-quartz, the Si–O–Si angle is 144°.
Silicon Dioxide (E551) is used as a defoamer component.
In its capacity as a refractory, Silicon Dioxide (E551) is useful in fiber form as a high-temperature thermal protection fabric.

Silicon Dioxide (E551) is used in the extraction of DNA and RNA due to its ability to bind to the nucleic acids under the presence of chaotropes.
Silicon Dioxide (E551) was used in the Stardust spacecraft to collect extraterrestrial particles.
Silicon Dioxide (E551), when cooled as fused quartz into a glass with no true melting point, can be used as a glass fibre for fibreglass.

Silicon Dioxide (E551) is a relatively inert material (hence its widespread occurrence as a mineral).
Silica is often used as inert containers for chemical reactions.
At high temperatures, it is converted to silicon by reduction with carbon.

Fluorine reacts with Silicon Dioxide (E551) to form SiF4 and O2 whereas the other halogen gases (Cl2, Br2, I2) are unreactive.
Most forms of Silicon Dioxide (E551) are attacked ("etched") by hydrofluoric acid (HF) to produce hexafluorosilicic acid:
SiO2 + 6 HF → H2SiF6 + 2 H2O

Stishovite does not react to HF to any significant degree.
HF is used to remove or pattern Silicon Dioxide (E551) in the semiconductor industry.
Silicon Dioxide (E551) acts as a Lux–Flood acid, being able to react with bases under certain conditions.

As it does not contain any hydrogen, non-hydrated silica cannot directly act as a Brønsted–Lowry acid.
While Silicon Dioxide (E551) is only poorly soluble in water at low or neutral pH (typically, 2 × 10−4 M for quartz up to 10−3 M for cryptocrystalline chalcedony), strong bases react with glass and easily dissolve it.
Therefore, strong bases have to be stored in plastic bottles to avoid jamming the bottle cap, to preserve the integrity of the recipient, and to avoid undesirable contamination by silicate anions.

Silicon Dioxide (E551) reacts in heated reflux under dinitrogen with ethylene glycol and an alkali metal base to produce highly reactive, pentacoordinate silicates which provide access to a wide variety of new silicon compounds.
The silicates are essentially insoluble in all polar solvent except methanol.
Silicon Dioxide (E551) is currently regarded as a safe food additive when used following the appropriate levels to obtain the desired effect on the food product, and never exceeding the 2% limit.

However, authorities in the EU are reviewing potential hazardous effects of its nanoparticles.
Silicon Dioxide (E551), also known as silica, silicic acid or silicic acid anydride is an oxide of silicon with the chemical formula SiO2, most commonly found in nature as quartz and in various living organisms.
In many parts of the world, silica is the major constituent of sand.

Silica is one of the most complex and most abundant families of materials, existing as a compound of several minerals and as synthetic product.
Notable examples include fused quartz, fumed silica, silica gel, and aerogels.
Silicon Dioxide (E551) is used in structural materials, microelectronics -as an electrical insulator-, and as components in the food and pharmaceutical industries.

Inhaling finely divided crystalline silica is toxic and can lead to severe inflammation of the lung tissue, silicosis, bronchitis, lung cancer, and systemic autoimmune diseases, such as lupus and rheumatoid arthritis.
Uptake of amorphous Silicon Dioxide (E551), in high doses, leads to non-permanent short-term inflammation, where all effects heal.
Sinofi is a leading Silicon Dioxide (E551) supplier and manufacturer in China.

Silicon Dioxide (E551)hydrofluoric.
Sinofi is a reliable Silicon Dioxide (E551) supplier and manufacturer in China.
Silicon Dioxide (E551) is commonly manufactured through the high-temperature melting and cooling of Silicon Dioxide (E551)-rich rocks or minerals, such as quartz or sand.

In the food, beverage, and pharmaceutical industries, the typical manufacture of Silicon Dioxide (E551) occurs via a synthetic process, creating the compound from silica gel or sodium silicate.
These processes vary based on the final application for Silicon Dioxide (E551).
For example, in the food and beverage industry, Silicon Dioxide (E551) may undergo additional processing to ensure it meets regulatory requirements for safety and purity.

Silicon Dioxide (E551) also known as silica, is a natural compound made of two of the earth’s most abundant materials: silicon (Si) and oxygen [O2].
Silicon Dioxide (E551) is most often recognized in the form of quartz.
Silicon Dioxide (E551)’s found naturally in water, plants, animals, and the earth.

The earth’s crust is 59% silica. It makes up more than 95 percent of known rocks on the planet.
Silicon Dioxide (E551)’s Silicon Dioxide (E551) in the form of sand that gets between toes.
Silicon Dioxide (E551)’s even found naturally in the tissues of the human body.

Though it’s unclear what role it plays, Silicon Dioxide (E551)’s thought to be an essential nutrient our bodies need.
Silicon Dioxide (E551) is also added to many foods and supplements.
As a food additive, Silicon Dioxide (E551) serves as an anti-caking agent to avoid clumping.

In supplements, Silicon Dioxide (E551)'s used to prevent the various powdered ingredients from sticking together.
Silicon Dioxide (E551) and Hydrated Silica are used in a wide range of cosmetics and personal care products including bath products, eye makeup, hair care products, makeup, nail care products, oral hygiene products and skin care products.
Silicon Dioxide (E551), is one of the most abundant materials on earth, available as White powder.

Silicon Dioxide (E551) is widely used as flow agent in powdered foods and fining agent in wine, beer, and juice.
Silicon Dioxide (E551) is widely accepted as safe food additive in many countries with E number E551.
As a professional supplier and manufacturer of food additives, Foodchem International Corporation has been supplying quality Silicon Dioxide (E551) to customers all over the world for over 10 years.

Melting point: >1600 °C(lit.)
Boiling point: >100 °C(lit.)
Density: 2.2-2.6 g/mL at 25 °C
vapor pressure: 13.3hPa at 1732℃
refractive index: 1.46
Flash point: 2230°C
storage temp.: 2-8°C
solubility: Practically insoluble in water and in mineral acids except hydrofluoric acid. It dissolves in hot solutions of alkali hydroxides.
form: suspension
pka: 6.65-9.8[at 20 ℃]
Specific Gravity: 2.2
color: White to yellow
PH: 5-8 (100g/l, H2O, 20℃)(slurry)
Odor: at 100.00?%. odorless
Water Solubility: insoluble
Hydrolytic Sensitivity 6: forms irreversible hydrate
Sensitive: Hygroscopic
Merck: 14,8493
Exposure limits NIOSH: IDLH 3000 mg/m3; TWA 6 mg/m3
Stability: Stable.

Silicon Dioxide (E551) is obtained like silica gel by acidifying an aqueous solution of sodium silicate.
Precipitated silica is used as filler in rubber for automobile tires and reinforcement particulate in elastomers, and as a flatting agent in paints and coatings for improving the flatness of coatings.
Silicon Dioxide (E551) for high technology applications uses isopiestic vapour distillation from concentrated volatile acids and is absorbed in high purity water.

The impurities remain behind.
Preliminary cleaning to remove surface contaminants uses dip etching in HF or a mixture of HCl, H2O2 and deionised water [Phelan & Powell Analyst 109 1299 1984].
Silicon Dioxide (E551), amorphous is a noncombustible solid.

Generally unreactive chemically.
Incompatible with fluorine, oxygen difluoride, chlorine trifluoride.
Soluble in molten alkalis and reacts with most metallic oxides at high temperature.

Silicon Dioxide (E551) is found in plants and drinking water, it is safe.
Silicon Dioxide (E551) is known that the silicon we consume through diet does not accumulate in the body, it is eliminated by the kidneys.
There is no evidence so far that the additive Silicon Dioxide (E551) used in current quantities in the food and pharmaceutical industry is toxic.

Silicon Dioxide (E551) occurs widely in nature. The Agency for Toxic Substances and Disease Registry (ATSDR) give an idea to just how common this compound is.
Silicon Dioxide (E551) is easiest to recognize by its common name, quartz, which makes up about 12% of the earth’s crust.
However, Silicon Dioxide (E551) also occurs naturally in everything from water and plants to animals.

Silicon Dioxide (E551) sand covers many beaches, and it makes up most of the rocks on earth.
In fact, silica-containing minerals or silica itself make up more than 95% of the earth’s crust.
Silicon Dioxide (E551) is also added to many foods and supplements.

As a food additive, Silicon Dioxide (E551) serves as an anticaking agent to avoid clumping.
In supplements, Silicon Dioxide (E551)’s used to prevent the various powdered ingredients from sticking together.
As with many food additives, consumers often have concerns about Silicon Dioxide (E551) as an additive. However, numerous studies suggest there’s no cause for these concerns.

Silicon Dioxide (E551) is the most stable form of solid SiO2 at room temperature.
The high-temperature minerals, cristobalite and tridymite, have both lower densities and indices of refraction than Silicon Dioxide (E551).
The transformation from α-quartz to beta-quartz takes place abruptly at 573 °C.

Since the transformation is accompanied by a significant change in volume, Silicon Dioxide (E551) can easily induce fracturing of ceramics or rocks passing through this temperature limit.
The high-pressure minerals, seifertite, stishovite, and coesite, though, have higher densities and indices of refraction than Silicon Dioxide (E551).
Stishovite has a rutile-like structure where silicon is 6-coordinate.

The density of stishovite is 4.287 g/cm3, which compares to Silicon Dioxide (E551), the densest of the low-pressure forms, which has a density of 2.648 g/cm3.
The difference in density can be ascribed to the increase in coordination as the six shortest Si–O bond lengths in stishovite (four Si–O bond lengths of 176 pm and two others of 181 pm) are greater than the Si–O bond length (161 pm) in Silicon Dioxide (E551).
The change in the coordination increases the ionicity of the Si–O bond.

Silicon Dioxide (E551), another polymorph, is obtained by the dealumination of a low-sodium, ultra-stable Y zeolite with combined acid and thermal treatment.
The resulting product contains over 99% silica, and has high crystallinity and specific surface area (over 800 m2/g).
Silicon Dioxide (E551) has very high thermal and acid stability.

Silicon Dioxide (E551) maintains a high degree of long-range molecular order or crystallinity even after boiling in concentrated hydrochloric acid.
Molten Silicon Dioxide (E551) exhibits several peculiar physical characteristics that are similar to those observed in liquid water: negative temperature expansion, density maximum at temperatures ~5000 °C, and a heat capacity minimum.
Silicon Dioxide (E551) is density decreases from 2.08 g/cm3 at 1950 °C to 2.03 g/cm3 at 2200 °C.

Even though it is poorly soluble, Silicon Dioxide (E551) occurs in many plants such as rice.
Plant materials with high Silicon Dioxide (E551) phytolith content appear to be of importance to grazing animals, from chewing insects to ungulates.
Silicon Dioxide (E551) accelerates tooth wear, and high levels of silica in plants frequently eaten by herbivores may have developed as a defense mechanism against predation.

Silicon Dioxide (E551) is commonly used in the cosmetic and personal care industry.
Silicon Dioxide (E551) can be found in products such as toothpaste, skin creams, and powders.
In cosmetics, Silicon Dioxide (E551) is often used as an abrasive agent in toothpaste or as a thickening agent in lotions and creams.

Apart from its use in tablet manufacturing, Silicon Dioxide (E551) is also employed in pharmaceuticals as a desiccant.
Silicon Dioxide (E551) helps in preserving the quality of medications by preventing moisture absorption, which can degrade the stability of certain drugs.
Silicon Dioxide (E551), particularly in mesoporous forms like SBA-15, is used as a support material for catalysts in various chemical processes.

The high surface area and well-defined pores of SBA-15 make it suitable for catalytic applications.
Silicon Dioxide (E551) nanoparticles, especially in the nanometer range, have gained attention in materials science.
They are explored for applications in nanocomposites, sensors, and as carriers for drug delivery due to their unique properties at the nanoscale.

Single crystal substrates of Silicon Dioxide (E551) are used in optics and electronics.
These substrates provide a high-quality surface for the deposition of other materials, making them essential in the production of various electronic devices.
Silicon Dioxide (E551) sols, prepared using the sol-gel process, have applications in coatings, films, and as a precursor for glass and ceramics.

The sol-gel process allows for the formation of thin films with controlled properties.
Silicon Dioxide (E551), due to its absorbent properties, is used in industrial applications for drying gases and liquids.
Silicon Dioxide (E551) is employed in systems where the removal of moisture is crucial for maintaining the efficiency and integrity of processes.

Ongoing research in nanotechnology involves exploring new forms and applications of Silicon Dioxide (E551) nanoparticles for their unique electronic, optical, and mechanical properties.
Silicon Dioxide (E551) is also the primary component of rice husk ash, which is used, for example, in filtration and as supplementary cementitious material (SCM) in cement and concrete manufacturing.
For well over a 1000 million years, silicification in and by cells has been common in the biological world.

In the modern world, Silicon Dioxide (E551) occurs in bacteria, single-celled organisms, plants, and animals (invertebrates and vertebrates).
Tests or frustules (i.e. shells) of diatoms, Radiolaria, and testate amoebae.
Silicon Dioxide (E551) in the cells of many plants, including Equisetaceae, practically all grasses, and a wide range of dicotyledons.

The spicules forming the skeleton of many sponges.
Crystalline minerals formed in the physiological environment often show exceptional physical properties (e.g., strength, hardness, fracture toughness) and tend to form hierarchical structures that exhibit microstructural order over a range of scales.
The minerals are crystallized from an environment that is undersaturated concerning Silicon Dioxide (E551), and under conditions of neutral pH and low temperature (0–40 °C).

Silicon Dioxide (E551) is the primary ingredient in the production of most glass.
As other minerals are melted with Silicon Dioxide (E551), the principle of freezing point depression lowers the melting point of the mixture and increases fluidity.
The glass transition temperature of pure SiO2 is about 1475 K.

When molten Silicon Dioxide (E551) SiO2 is rapidly cooled, it does not crystallize, but solidifies as a glass.
Because of this, most ceramic glazes have silica as the main ingredient.
The structural geometry of Silicon Dioxide (E551) and oxygen in glass is similar to that in quartz and most other crystalline forms of silicon and oxygen with silicon surrounded by regular tetrahedra of oxygen centres.

The difference between the glass and crystalline forms arises from the connectivity of the tetrahedral units: Although there is no long-range periodicity in the glassy network ordering remains at length scales well beyond the SiO bond length.
One example of this ordering is the preference to form rings of 6-tetrahedra.
The majority of optical fibers for telecommunication are also made from silica.

Silicon Dioxide (E551) is a primary raw material for many ceramics such as earthenware, stoneware, and porcelain.
The solubility of Silicon Dioxide (E551) in water strongly depends on its crystalline form and is three to four times higher for silica than quartz; as a function of temperature, it peaks around 340 °C (644 °F).
This property is used to grow single crystals of Silicon Dioxide (E551) in a hydrothermal process where natural quartz is dissolved in superheated water in a pressure vessel that is cooler at the top.

These crystals are a source of very pure quartz for use in electronic applications.
Above the critical temperature of water 647.096 K (373.946 °C; 705.103 °F) and a pressure of 22.064 megapascals (3,200.1 psi) or higher, water is a supercritical fluid and solubility is once again higher than at lower temperatures.
Silicon Dioxide (E551) is an occupational hazard for people who do sandblasting or work with products that contain powdered crystalline silica.

Amorphous Silicon Dioxide (E551), such as fumed silica, may cause irreversible lung damage in some cases but is not associated with the development of silicosis.
Children, asthmatics of any age, those with allergies, and the elderly (all of whom have reduced lung capacity) can be affected in less time.
In the food and beverage industry, Silicon Dioxide (E551) is an anti-caking agent preventing powders and granulated products from clumping.

Silicon Dioxide (E551) is also a thickener, stabilizer, and emulsifier in products like salad dressings, sauces, and soft drinks.
Silicon Dioxide (E551) is approved as a food additive in the UK by the European Food Safety Authority (EFSA) and is considered safe for human consumption.
For Pharmaceutical Industry applications, Silicon Dioxide (E551) is an excipient (binds active ingredients) in medications.

Additionally, Silicon Dioxide (E551) is used as a desiccant to absorb moisture and prevent spoilage in medications and dietary supplements.
The use of Silicon Dioxide (E551) in pharmaceuticals is regulated in the UK and must meet certain quality and safety standards.
Silicon Dioxide (E551) is also used in cosmetic products in the UK as an abrasive in toothpaste and exfoliating scrubs, as well as a thickener and anti-caking agent.

Industrial applications use Silicon Dioxide (E551) as a reinforcing filler in rubber and plastic products and a polishing agent in the production of glass and ceramics.
Amorphous non-porous Silicon Dioxide (E551) is used in the food industry as an auxiliary substance E551, which prevents caking and clumping, in parapharmaceuticals (toothpastes), in the pharmaceutical industry as an auxiliary substance (included in most pharmacopoeias), to stabilize suspensions and liniments, as a thickener for ointments bases, fillers for tablets and suppositories.

Silicon Dioxide (E551) is part of the composition of filling materials, reduces the hygroscopicity of dry extracts, slows down the release of biologically active substances from various dosage forms; as food additives and sorbents, as well as matrices for creating dosage forms with desired properties - since there is no crystal structure (amorphene), and also as a food additive or drug as an enterosorbent Polysorb MP with a wide range of applications, taking into account high specific sorption surface (in the range of 300-400 m²) per 1 g of the basic substance.
Silicon Dioxide (E551) E551 can be used as flow agent in food such as in cheese, fat spreads, confectionery, dried vegetables.
Silicon Dioxide (E551) E551 maintain the strength and density of bones, thus reducing the risk of diseases like arthritis and osteoarthritis in pharmaceutical.

Uses Of Silicon Dioxide (E551):
silica is also known as Silicon Dioxide (E551).
Silicon Dioxide (E551) has a variety of applications: to control a product’s viscosity, add bulk, and reduce a formulation’s transparency.
Silicon Dioxide (E551) can also function as an abrasive.

In addition, Silicon Dioxide (E551) can act as a carrier for emollients, and may be used to improve a formulation’s skin feel.
Spherical silica is porous and highly absorbent, with absorption capabilities roughly 1.5 times its weight.
A typical claim associated with silica is oil control.

Silicon Dioxide (E551) is found in sunscreens, scrubs, and wide range of other skin care, makeup, and hair care preparations.
Silicon Dioxide (E551) has been successfully used in hypoallergenic and allergy-tested formulations.
Functionalized RAFT agent for controlled radical polymerization; especially suited for the polymerization of styrene; acrylate and acrylamide monomers.

Azide group can be used to conjugate to a variety of alkyne-functionalized biomolecules.
Silicon Dioxide (E551) is mined from deposits of diatomaceous soft chalk-like rock (keiselghur).
This is an important group of extender pigments, which is used in a variety of particle sizes.

They are used as a flatting agent to reduce gloss of clear coatings and to impart shear thinning flow properties to coatings.
They are relatively expensive.
Silicon Dioxide (E551), amorphous is used as carriers, processing aids, anti-caking and free-flow agents in animal feed.

Defoamer applications such as paint, food, paper, textile and other industrial applications.
Synthetic Silicon Dioxide (E551)s are used as a rheology control agent in plastics.
Silicon Dioxide (E551) is also used to manufacture adhesives, sealants and silicones.

Silicon Dioxide (E551) comes from the fact that it is an absorbent with a high capacity to retain vapours, gases or even various impurities present in some food products.
For example, Silicon Dioxide (E551) is used in beer because it absorbs the high molecular proteins responsible for clouding the finished product.
This treatment does not affect foam stability, colour or taste of the product.

The additive is also used in some food products as a carrier for colours and antifoams as well as a drying agent.
Silicon Dioxide (E551) is used as an anti-caking agent to avoid lumps.
In dietary supplements, this additive is used to prevent various ingredients from sticking together in powder form.

Manufacturers use silica to make everything from glass to cement, but it also has a use in the food industry as an additive and anticaking agent.
This type of food additive prevents foods from caking or sticking together in clumps.
This may help ensure a Silicon Dioxide (E551)’s shelf life, protect against the effects of moisture, and keep powdered ingredients from sticking together and helping them flow smoothly.

About 95% of the commercial use of Silicon Dioxide (E551) occurs in the construction industry, e.g. for the production of concrete (Portland cement concrete).
Certain deposits of Silicon Dioxide (E551) sand, with desirable particle size and shape and desirable clay and other mineral content, were important for sand casting of metallic products.
The high melting point of Silicon Dioxide (E551) enables it to be used in such applications such as iron casting; modern sand casting sometimes uses other minerals for other reasons.

Crystalline Silicon Dioxide (E551) is used in hydraulic fracturing of formations which contain tight oil and shale gas.
Silicon Dioxide (E551), either colloidal, precipitated, or pyrogenic fumed, is a common additive in food production.
Silicon Dioxide (E551) is used primarily as a flow or anti-caking agent in powdered foods such as spices and non-dairy coffee creamer, or powders to be formed into pharmaceutical tablets.

Silicon Dioxide (E551) can adsorb water in hygroscopic applications.
Colloidal silica is used as a fining agent for wine, beer, and juice, with the E number reference Silicon Dioxide (E551).
In cosmetics, silica is useful for its light-diffusing properties[33] and natural absorbency.

Diatomaceous earth, a mined product, has been used in food and cosmetics for centuries.
Silicon Dioxide (E551) consists of the silica shells of microscopic diatoms; in a less processed form it was sold as "tooth powder".
Manufactured or mined hydrated silica is used as the hard abrasive in toothpaste.

Silicon Dioxide (E551) exist as white, fluffy powders that are produced through a wet process, yielding silica or silica gel, or a thermal route, yielding pyrogenic (fumed) silica.
In powdered foods, the silica clings to the particles of the foods and prevents them from clumping.
This allows powdery products to remain free-flowing, and other products easy to separate.

Silicon Dioxide (E551) also functions as a defoaming agent, carrier, conditioning agent, chillproofing agent in malt beverages (like beer) and filter aid.
Silicon Dioxide (E551)’s also used to manufacture materials such as adhesives and paper for food-packaging materials.
Silicon Dioxide (E551) is used in permitted finished products, taking into account the relevant limitations, in accordance with the regulations in the Turkish Food Codex Regulation on Food Additives and vertical communiqués.

Silicon Dioxide (E551) is commonly used as an anti-caking agent in food products.
The morphology and the dimension of the added silica particles are not, however, usually stated on the food product label.
The food industry has adapted nanotechnology using engineered nanoparticles to improve the quality of their product.

Silicon Dioxide (E551) E551 can be used in Food, Beverage, Pharmaceutical, Health & Personal care products, Agriculture/Animal Feed/Poultry.
Silicon Dioxide (E551) is used as a flow agent in powdered foods, or to absorb water in hygroscopic applications.
Silicon Dioxide (E551) is often used in cheese, fat spreads, confectionery, dried vegetables, etc.

Silicon Dioxide (E551) E551 is a dioxide of silicon with the chemical formula SiO2.
Silicon Dioxide (E551) is used as a anti-caking agent, carrier, and dispersant that can absorb 120% of its weight and remain a free flowing substance.
Silicon Dioxide (E551) is used in a wide variety of products such as salt, flour, powdered soups, coffee, vanilla powder, baking powder, dried egg yolk, and tortilla chips.

Silicon Dioxide (E551) is used as an anti-caking agent in powdered and granulated foods, preventing clumping and improving flowability.
In pharmaceuticals, Silicon Dioxide (E551) is often used as a glidant or flow agent in the manufacturing of tablets.
Silicon Dioxide (E551) helps in the uniform distribution of ingredients and improves the flow of the powder.

Silicon Dioxide (E551) can be used as a thickening agent in lotions, creams, and powders in the cosmetic industry.
In toothpaste, it serves as an abrasive agent for cleaning teeth.
Mesoporous forms of Silicon Dioxide (E551), such as SBA-15, are used as support materials for catalysts in various chemical processes.

Silicon Dioxide (E551) nanoparticles find applications in nanocomposites, sensors, and drug delivery systems due to their unique properties at the nanoscale.
Single Crystal Substrates: Silicon Dioxide (E551) single crystal substrates are used in electronics and optics as a high-quality surface for depositing other materials in the production of electronic devices.
Silicon Dioxide (E551) is used as a desiccant to absorb moisture, preserving the quality and stability of pharmaceuticals and certain food products.

Silicon Dioxide (E551) sols, prepared through the sol-gel process, are used in coatings, films, and as precursors for glass and ceramics.
Silicon Dioxide (E551) is employed in various industrial processes for drying gases and liquids due to its absorbent properties.
Ongoing research explores new forms and applications of Silicon Dioxide (E551) nanoparticles in areas such as electronics, optics, and materials science.

In the construction industry, Silicon Dioxide (E551) can be used as an additive in concrete to improve its strength and durability.
Silicon Dioxide (E551) is sometimes used in water treatment processes for the removal of impurities.
In chromatography, silica gel is commonly used as a stationary phase for separating and purifying chemical compounds.

Silicon Dioxide (E551) gel with specific particle sizes and binders is used in TLC for separating and analyzing mixtures.
Silicon Dioxide (E551) gel with defined pore sizes and particle sizes is employed in flash chromatography for rapid separation of compounds.
Silicon Dioxide (E551)-grade silica gel in spherical form is utilized as a stationary phase in HPLC columns for high-resolution liquid chromatography.

Silicon Dioxide (E551) gel with larger particle sizes is used in preparative chromatography for the purification of larger quantities of compounds.
Silicon Dioxide (E551) is commonly found in desiccant packs used to absorb moisture in packaging for products like electronics, leather goods, and food.
Silicon Dioxide (E551), with well-defined pore sizes, is employed in catalysts, adsorbents, and in various applications in materials science.

Silicon Dioxide (E551) nanoparticles find applications in targeted drug delivery, imaging agents, and as reinforcing agents in nanocomposites.
Silicon Dioxide (E551) is used in optical coatings, providing anti-reflective properties and enhancing the performance of lenses and mirrors.
As a reinforcing filler in rubber and plastic industries, Silicon Dioxide (E551) improves the mechanical properties and durability of the materials.

Silicon Dioxide (E551) nanoparticles are researched for potential applications in enhanced oil recovery and as additives for drilling fluids.
Silica nanoparticles are used in paints and coatings to enhance scratch resistance, durability, and provide a smoother finish.
Silicon Dioxide (E551) is used as a thickening agent in adhesives and sealants, improving their viscosity and performance.

Silica is used as an abrasive in various applications, including in the polishing of lenses, glass, and other surfaces.
Silica nanoparticles are explored for applications in imaging, diagnostics, and drug delivery in the biomedical field.

Silica gel can be used in water purification processes to remove impurities and contaminants.
Silicon Dioxide (E551)-based materials are studied for potential use in fuel processing and fuel cell technologies.

Safety of Silicon Dioxide (E551):
Many food additives tend to raise concerns from people who want to be aware of what they are eating, and Silicon Dioxide (E551) is no different.
Inhaling finely divided crystalline silica can lead to severe inflammation of the lung tissue, silicosis, bronchitis, lung cancer, and systemic autoimmune diseases, such as lupus and rheumatoid arthritis.
Inhalation of amorphous Silicon Dioxide (E551), in high doses, leads to non-permanent short-term inflammation, where all effects heal.

While the name may seem unfamiliar, Silicon Dioxide (E551) is a natural compound. Many studies suggest that there is no cause for concern when people are consuming Silicon Dioxide (E551) in normal doses, such as the small amounts that manufacturers put in food products to prevent caking.
The pure unaltered form is considered a nuisance dust.
Some deposits contain small amounts of crystahne quartz and are therefore fibrogenic.

When diatomaceous earth is calcined (with or without fluxing agents) some sdica is converted to cristobalite and is therefore fibrogenic.
Tridymite has never been detected in calcined batomaceous earth.
Silica ingested orally is essentially nontoxic, with an LD50 of 5000 mg/kg (5 g/kg).

A 2008 study following subjects for 15 years found that higher levels of silica in water appeared to decrease the risk of dementia.
An increase of 10 mg/day of silica in drinking water was associated with a decreased risk of dementia of 11%.
Inhaling finely divided crystalline silica dust can lead to silicosis, bronchitis, or lung cancer, as the dust becomes lodged in the lungs and continuously irritates the tissue, reducing lung capacities.

When fine silica particles are inhaled in large enough quantities (such as through occupational exposure), it increases the risk of systemic autoimmune diseases such as lupus and rheumatoid arthritis compared to expected rates in the general population.
Diatomaceous earth is used as a filtering agent and as a filler in construction materials, pesticides, paints, and varnishes.
The calcined version (which has been heat treated) is the most dangerous and contains crystallized silica, and should be handled as silica.

Side effects and risks of Silicon Dioxide (E551):
Some researchers have called for further investigation into the types of silica that find their way into food products.
These include nanoparticles, which are silica particles that are much smaller than most of the particles that occur in nature.
The concern is that these tiny particles could reach different areas of the body and even get into the cells themselves.