Quick Search
Dibutyltin dilaurate is an organotin compound with the formula (CH3(CH2)10CO2)2Sn(CH2CH2CH2CH3)2.
Dibutyltin dilaurate is a colorless viscous and oily liquid.
Dibutyltin dilaurate is used as a catalyst.
CAS: 77-58-7
MF: C32H64O4Sn
MW: 631.56
EINECS: 201-039-8
Synonyms
BTDL;Aids010213;Aids-010213;Ditin butyl dilaurate(dibutyl bis((1-oxododecyl)oxy)-Stannane);dibutyltin(IV) dodecanoate;Two dibutyltin dilaurate;The two butyltintwo lauricacid;Dibutyltin dilaurate 95%;Dibutyltin dilaurate;77-58-7;Butynorate;Davainex;Tinostat;Di-n-butyltin dilaurate;Stanclere DBTL;Dibutyltin laurate;Stabilizer D-22;Dibutylbis(lauroyloxy)tin;TVS Tin Lau;T 12 (catalyst);Dibutylbis(laurato)tin;Ongrostab BLTM;Dibutyltin didodecanoate;Stavinor 1200 SN;Dibutyltin n-dodecanoate;Fomrez sul-4;Thermolite T 12;Dibutylstannylene dilaurate;Kosmos 19;Therm chek 820;DBTL;Dibutyl-zinn-dilaurat;Mark 1038;Neostann U 100;Cata-Chek 820;Lankromark LT 173;TIN DIBUTYL DILAURATE;Bis(lauroyloxy)di(n-butyl)stannane;Tin, dibutylbis(lauroyloxy)-;Laustan-B;Dibutylstannium dilaurate;Stannane, dibutylbis[(1-oxododecyl)oxy]-;TVS-TL 700;Laudran di-n-butylcinicity;Stannane, bis(lauroyloxy)dibutyl-;Stannane, dibutylbis(lauroyloxy)-;Lauric acid, dibutylstannylene salt;Dibutyl-tin-dilaurate;TN 12 (catalyst);Lauric acid, dibutyltin deriv.;Stavincor 1200 SN;Mark BT 11;Mark BT 18;Butyl norate;Stannane, bis(dodecanoyloxy) di-n-butyl-;KS 20;TN 12;[dibutyl(dodecanoyloxy)stannyl] dodecanoate;Dibutylbis(lauroxy)stannane;Tin, di-n-butyl-, di(dodecanoate);Dibutylbis(1-oxododecyl)oxy)stannane;Lauric acid, dibutylstannylene deriv.;Stabilizer D 22;Dibutyltin dillaurate;Metacure T-12;CCRIS 4786;Dibutyl-zinn-dilaurat [German];DXR 81;dibutylstannanediyl didodecanoate;DTXSID6024961;T 12;Dabco T-12;di-n-Butylin dilaurate;HSDB 5214;Laudran di-n-butylcinicity [Czech];NSC 2607;SM 2014C;EINECS 201-039-8;ADK STAB BT-11;Stannane, bis(dodecanoyloxy)di-n-butyl;Stannane, dibutylbis((1-oxododecyl)oxy)-;UNII-L4061GMT90;AI3-26331;DTXCID404961;Lauric acid, dibutyltin derivative;Dodecanoic acid, 1,1'-(dibutylstannylene) ester;L4061GMT90;Dibutylbis(1-oxododecyloxy)stannane;NSC-2607;Bis(dodecanoyloxy)di-n-butylstannane;MFCD00008963;dibutylbis((1-oxododecyl)oxy)stannane;Dibutylbis[(1-oxododecyl)oxy]stannane;dodecanoic acid [dibutyl(1-oxododecoxy)stannyl] ester;Lauric acid, dibutylstannylene derivative;NCGC00166115-01;EC 201-039-8;DIBUTYL-ZINN-DILAURAT (GERMAN);CAS-77-58-7;LAUDRAN DI-N-BUTYLCINICITY (CZECH);Laudran;Lauric acid, dibutyltin deriv;LaustanB;Fomrez sul4;Stabilizer D22;T 12 (VAN);Lauric acid, dibutylstannylene deriv;Dinbutyltin dilaurate;CataChek 820;Dibutyltin ndodecanoate;Tin, di(dodecanoate);STANN BL;Laudran dinbutylcinicity;Dibutyltin dilauric acid;UN2788 (liquid);UN3146 (solid);ADVASTAB T 12P;METACURE T 12;SCAT 1;STAVINOR 1200SN;ADK STAB BT 11;Dibutyltin dilaurate, 95%;Tin, dibutylbis(lauroyloxy);STANN SB 430A;DABCO T 12;MEISTER ZL 4401;CAT 11 (CATALYST);Dibutylbis(lauroyloxy)stannane;TVSTL 700;FASCAT 4202;BL 42A;CAT 11;TVS-TL 800;Tin, dinbutyl, di(dodecanoate);Stannane, bis(lauroyloxy)dibutyl;Stannane, dibutylbis(lauroyloxy);Bis(lauroyloxy)di(nbutyl)stannane;DIBUTYLBIS(LAUROYLOXY) TIN;NSC2607;Stannane, bis(dodecanoyloxy)dinbutyl;Tox21_112324;Dibutyl[bis(dodecanoyloxy)]stannane #;Stannane, bis(dodecanoyloxy) dinbutyl;AKOS028109931;Dibutyltin dilaurate, SAJ first grade;Tox21_112324_1;Dibutyltin dilaurate, Selectophore(TM);Stannane, dibutylbis((1oxododecyl)oxy);TL 1000;WLN: 11VO-SN-4&4&OV11;dibutyl(dodecanoyloxy)stannyl dodecanoate;Dibutylbis((1-oxododecyl)-oxy) stannane;NCGC00166115-02;FD165660;PD163675;Di-n-butyltin dilaurate (18 - 19% Sn);NS00074336;U 100;E78905;A839138;201-039-8
In terms of its structure, the molecule of Dibutyltin dilaurate consists of two laurate groups and two butyl groups attached to a tin(IV) atom.
The molecular geometry at tin is tetrahedral.
Based on the crystal structure of the related bis(bromobenzoate), the oxygen atoms of the carbonyl groups are weakly bonded to tin atom.
According to some authors, Dibutyltin dilaurate is a dibutyltin(IV) ester of lauric acid.
Upon heating to decomposition temperature (which is above 250 °C), dibutyltin dilaurate emits acrid smoke and fumes.
Dibutyltin dilaurate is an organic tin additives, and can be soluble in benzene, toluene, carbon tetrachloride, ethyl acetate, chloroform, acetone, petroleum ether and other organic solvents and all industrial plasticizers, but insoluble in water.
Multipurpose high-boiling organic tin catalyst circulation of dibutyltin dilaurate are usually specially treated liquefaction, and at room temperature as a pale yellow or colorless oily liquid, when low temperature as white crystals, and Dibutyltin dilaurate can be used for PVC additives, it also has excellent lubricity, transparency, weather resistance, and better resistance for sulfide pollution.
Dibutyltin dilaurate can also uesd the stabilizer of the soft transparent products and efficient lubricants in hard transparent products, and can also be used acrylate rubber and rubber carboxyl crosslinking reaction, the catalyst of synthesis of polyurethane foam and polyester synthetic, and RTV silicone rubber.
Dibutyltin dilaurate Chemical Properties
Melting point: 22-24°C
Boiling point: >204°C/12mm
Density: 1.066 g/mL at 25 °C(lit.)
Vapor pressure: 0.2 mm Hg ( 160 °C)
Refractive index: n20/D 1.471(lit.)
Fp: >230 °F
Storage temp.: Store below +30°C.
Solubility: <1.43mg/l
Form: Oily Liquid
Color: Clear pale yellow
Specific Gravity: 1.066
Water Solubility: <0.1 g/100 mL at 20 ºC
FreezingPoint: 8℃
Merck: 14,3038
BRN: 4156980
Exposure limits ACGIH: TWA 0.1 mg/m3; STEL 0.2 mg/m3 (Skin)
NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3
Stability: Stability Combustible. Incompatible with strong oxidizing agents. May be air sensitive.
InChIKey: UKLDJPRMSDWDSL-UHFFFAOYSA-L
LogP: 3.120
CAS DataBase Reference: 77-58-7(CAS DataBase Reference)
EPA Substance Registry System: Dibutyltin dilaurate (77-58-7)
Dibutyltin dilaurate is pale yellow flammable liquid, and soluble in acetone and benzene, can not dissolve in water.
Uses
Dibutyltin dilaurate is used as a paint additive.
Together with dibutyltin dioctanoate, dibutyltin dilaurate is used as a catalyst for polyurethane production from isocyanates and diols.
Dibutyltin dilaurate is also useful as a catalyst for transesterification and for the room temperature vulcanization of silicones.
Dibutyltin dilaurate is also used as a stabilizer in polyvinyl chloride, vinyl ester resins, lacquers, and elastomers.
Dibutyltin dilaurate is also added to animal feed to remove cecal worms, roundworms, and tapeworms in chickens and turkeys and to prevent or provide treatment against hexamitosis and coccidiosis.
Dibutyltin dilaurate can be used as PVC heat stabilizers, and it is the earliest used varieties in organotin stabilizers, heat resistance is less than tributyltin maleate, but it has excellent lubricity, weather resistance and transparency can be ok, and it has good compatibility with plasticizers, non-blooming, non-sulfide pollution, no adverse effects on heat sealing and printability.
For Dibutyltin dilaurate is liquid at room temperature, so the dispersion in plastic is better than solid stabilizer.
Dibutyltin dilaurate is mainly used in soft transparent products or semi-soft products, generally in an amount of 1-2%.
In hard products, Dibutyltin dilaurate can be used as lubricant, and when used with maleic acid organic tin or thiol-containing organic tin can improve the fluidity of the resin material.
Compared with other organic tin, the goods early color large will cause yellow discoloration.
Dibutyltin dilaurate can also be used as catalysts of synthesizing polyurethane, the curing agents of silicone rubber.
In order to enhance the thermal stability, transparency, compatibility with resins, as well as improve the impact strength for hard products and its other properties, now Dibutyltin dilaurate has developed a number of modified varieties.
Lauric acid and other fatty acids is generally added in the category of pure, the epoxy ester or other metal soap stabilizer is also added in.
Dibutyltin dilaurate is toxic materials.
Dibutyltin dilaurate is used as a catalyst for the production of polyurethanes as well as for the transesterification reactions.
Dibutyltin dilaurate is involved in the vulcanization of silicones and a stabilizer in polyvinyl chloride (PVC).
Dibutyltin dilaurate acts as a rust inhibitor for polyurethanes, polyols, silicones and as a fuel additive.
Dibutyltin dilaurate has been used as a catalyst in a protocol for the covalent attachment of poly(ethylene glycol) (PEG) to silicon oxide to form a hydrophilic non-fouling surface.
Dibutyltin dilaurate can also be used as a catalyst in the preparation of polymers by reacting hydroxyl-terminated macromonomers and aliphatic diisocyanates.
Stabilizer for polyvinyl chloride resins.
Catalyst for curing certain silicones.
Hazards and toxicity
Dibutyltin dilaurate can be absorbed through the skin.
Dibutyltin dilaurate irritates skin and eyes (causes redness of skin and eyes).
Dibutyltin dilaurate is a neurotoxin.
Dibutyltin dilaurate can cause injuries to the liver, kidneys, and gastrointestinal tract. The symptoms of poisoning with dibutyltin dilaurate include nausea, headache, muscular weakness and even paralysis.
Dibutyltin dilaurate is very reactive with acids and oxidizers, and it is combustible.
Dibutyltin dilaurate emits irritating and toxic fumes and smoke when burned, which contain tin, tin oxides and carbon oxides.
Moreover, Dibutyltin dilaurate's vapor is much denser than air (21.8 times so), so it can spread on floors, resulting in explosive conditions or asphyxiation hazards.
