Quick Search
Sodium Methyl Siliconate is a nonflammable, water-dilutable solution of sodium methyl siliconate (Sodium siliconate) developed to impart water repellency.
Sodium Methyl Siliconate acts as a reagent in molecular modeling for screening environmental chemicals for estrogenicity use of the toxicant-target approach.
Sodium Methyl Siliconate, generally abbreviated as SHP, is a versatile chemical additive known for its remarkable water-repellent properties.
CAS: 16589-43-8
MF: CH3Na3O3Si
MW: 160.09
EINECS: 240-648-3
Synonyms
methyl-silanetriosodiumsalt;Silanetriol,methyl-,sodiumsalt;Trisodium methylsilanetriolate;Monomethylsilanetriol, monosodium salt;Methylsilanetriol/sodium,(1:x) salt;722 Water repellent;DC 772;Dryseal C
Sodium Methyl Siliconate is a fine, white powder composed of silicone polymer, a synthetic polymer known for its unique combination of flexibility, stability, and resistance to various environmental factors.
Sodium Methyl Siliconate is an aqueous solution of sodium methyl siliconate for the impregnation of mineral construction materials in diluted form to make them waterproof.
Sodium Methyl Siliconate reacts with the atmospheric CO2 to form an active water-resistant which firmly combine with the surface of the masonry within 24 hours.
As with all siliconates, however, Sodium Methyl Siliconate can cause a white deposit on the surface of colored construction materials.
Sodium Methyl Siliconate can be diluted directly added to the concrete, mortar, mortar andwater paint, foam asbestos, can play a waterproof, moistureproof effect.
Sodium Methyl Siliconate Chemical Properties
Density: 1.24
Solubility: DMSO (Slightly), Methanol (Slightly), Water (Sparingly, Sonicated)
Form: Oil
Color: Colourless
Specific Gravity: 1.24
Hydrolytic Sensitivity 0: forms stable aqueous solutions
InChI: InChI=1S/CH3O3Si.3Na/c1-5(2,3)4;;;/h1H3;;;/q-3;3*+1
InChIKey: TYWKEXJQDDWAAM-UHFFFAOYSA-N
EPA Substance Registry System: Sodium Methyl Siliconate (16589-43-8)
Chemistry
Commercially available Sodium Methyl Siliconate include potassium methyl siliconate (CAS 31795-24-1, CH5KO3Si) and sodium methyl siliconate (CAS 16589-43-8, CH5NaO3Si).
These are supplied as a concentrate in water with an active content of between 30 and 40% by weight.
Sodium Methyl Siliconate is further diluted in water prior to their application by spraying, dipping or rolling to a mineral building material, such as brickwork, to make the surface water repellent.
The dilution is clear, stable with a high pH of 13 to 14.
When applied to a surface the siliconate reacts with carbon dioxide in the air to form an insoluble water resistant treatment within 24 hours.
CH5KO3Si + silanol functional substrate OHSi → CH4O3Si + KOH
The methyl group has now attached itself to the substrata.
2KOH + CO2 → K2CO3 + H2O
The salts formed by this reaction are often the cause of white efflorescence when too much of the solution is applied to the surface.
Application
For surface treatment & impregnation, dilute Sodium Methyl Siliconate with waterbefore use, suitable methods like dipping is necessary in order to achieve an adequate, uniform coating.
Sodium Methyl Siliconate is not recommended for treating exterior walls, since the unnecessarily uneven application will give rise to white spots.
The emulsion oligo methyl hydride siloxane has properties and characteristics similar with the methyl hydride siloxane.
The emulsion is also used to provide various materials with water repellency properties.
However, as oligo methyl hydride siloxane is the water emulsion, Sodium Methyl Siliconate can be applied as an additive in the production of solutions and mixtures that is by the volumetric method.
for concrete, asbestos, gypsum, ceramic, porcelain in the production of waterproof papers and leather;
in the production of water-resistant fabrics;
by volumetric method in the manufacture of paving tiles, slabs, curbs, fences of different silicate materials;
as plasticizer in the preparation of plaster, lime and cement solutions;
as an air involving admixture in the preparation of cement solution
Liquid is a mixture of tetra ethoxy silane and polyethoxy siloxanes.
Metal manufacture: binding agent in the manufacture of ceramic molds for precision core-mold casting; manufacture of rods exposed to high temperatures; manufacture of non-stick paints;
Textile industry: feltproofing of woolen cloths; abatement of carpet shrinkage; antirot and antidust protection of carpets; impregnating compound for filter cloths;
Construction engineering: hydrophobization of construction materials, treatment of coated surfaces; porosity decreasing impregnation of concrete; manufacture of acid-resistant cement;
Glasswork and cerarnics: antireflection treatment of optical glass; application of light-diffusing coat to electric light bulbs; binding agent for ceramic mixtures, resistant to strongly corrosive mediums, with high manufacture of fireproof material standing temperatures of about 1750 °C and stress of above 127 kg/cm3;
Coating industry: paint additives forming quick-drying, thermostable and water-resistant coats with constant gloss.
