Synonyms : Dibutyltin dilaurate, DBTL, DBTDL, BRB DBTDL, D-22, DBTDL, Dibutyltindilaurate (DBT), Fomrez SUL-4E, Fomrez« catalyst SUL-4, Mark DBTL, Metatin Catalyst 712E, Metatin Catalyst 712ES, Metatin Katalysator 712E, Metatin Katalysator 712ES, SILOPREN CATALYST 162, T-CAT B12, Tinstab BL277

Dibutyltin dilaurate, also called DBTDL, is an organotin compound with the formula (CH3(CH2)10CO2)2Sn((CH2)3CH3)2. 

Dibutyltin dilaurate is a colorless viscous, and oily liquid. Dibutyltin dilaurate is used as a catalyst.

Dibutyltin dilaurate is an organotin compound usually abbreviated to DBTL or DBTDL. 

The colorless to yellowish liquid has an oily consistency, is highly flammable, and gives off a fatty acid-like smell. 

Dibutyltin dilaurate is soluble in acetone, methanol, or other organic solvents but is practically insoluble in water.

Dibutyltin dilaurate (DBTDL) is an organotin compound that is used as a catalyst for polyurethane production from isocyanates and diols. 

Dibutyltin dilaurate improves the drying of chemically curing systems favoring the isocyanate/polyol reaction over other side reactions such as isocyanate/water. 

Dibutyltin dilaurate can be used to aid the curing process of polyurethanes, silicone resins, RTV silicone resins, and silane-modified polymers. 

Dibutyltin dilaurate was used for the removal of large roundworms, cecal worms, and several species of tapeworms from chickens and turkeys. 

Based on animal studies, prolonged or repeated overexposure to Dibutyltin dilaurate may affect the developing fetus, blood, and thymus. 

Overexposure to Dibutyltin dilaurate may also cause central nervous system effects.

DBTL catalyzes esterification reactions, transesterification reactions, and polycondensation reactions and has become the industry standard for coatings, adhesives, solvents, and elastomers.

Dibutyltin dilaurate can be used as a PVC heat stabilizer, and it is the earliest used variety in organotin stabilizers, heat resistance is less than tributyltin maleate, but it has excellent lubricity, weather resistance, and transparency. 

Dibutyltin dilaurate has good compatibility with plasticizers, non-blooming, non-sulfide pollution, and 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 a 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 good early color large will cause yellow discoloration.

Dibutyltin dilaurate can also be used as a catalyst for synthesizing polyurethane, the curing agent of silicone rubber. 

In order to enhance thermal stability, transparency, and compatibility with resins, as well as improve the impact strength for hard products and their other properties, ATAMAN CHEMICALS has a number of modified varieties. 

Lauric acid and other fatty acids are generally added in the category of pure, the epoxy ester or other metal soap stabilizer is also added in. 

The product is toxic materials. Rat oral is LD50 of 175mg/kg.

Description

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 of tin is tetrahedral. 

Based on the crystal structure of the related bis(bromobenzoate), the oxygen atoms of the carbonyl groups are weakly bonded to the tin atom.

Decomposition

Upon heating to decomposition temperature (above 250 °C), dibutyltin dilaurate emits acrid smoke and fumes.

IUPAC name

[Dibutyl(dodecanoyloxy)stannyl] dodecanoate

Other names

Butynorate

Davainex

DBTDL

DBTL

Dibutylbis(lauroyloxy)tin

Dibutylstannylene dilaurate

Dibutyltin didodecanoate

Dibutyltindilaurate

Lauric acid, 1,1'-(dibutylstannylene) ester

Stabilizer D-22

T 12 (catalyst)

Tinostat

CAS Number: 77-58-7 

EC Number: 201-039-8

PubChem CID : 16682738

Uses of Dibutyltin dilaurate

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 a catalyst for transesterification and 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 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 as Catalyst for Silicones

Dibutyltin dilaurate is a universally suitable catalyst for crosslinking cold vulcanizing silicone rubbers and silane-modified polymers. 

Dibutyltin dilaurate is widely used for the construction market silicone for sealing tiles at home to industrial applications such as in the production of cables, cast resin systems, or RTV sealants used in the automotive industry.

Two modes of action are possible: the DBTL catalyst supports curing room temperature crosslinking silicone rubbers. 

Exposed to the air, the ambient humidity reacts with the tin compound, and the silicone mass solidifies. 

Dibutyltin dilaurate accelerates this reaction and provides better processing properties. 

Alternatively, used two-component silicones harden not only by contact with the humidity but require a second reaction partner to be supplied.

DBTL as a Catalyst for Polyurethane Systems

Another application of dibutyltin dilaurate is the production of polyurethanes for various end applications: rigid foams, sealants, adhesives, paints, coatings, or large floors. 

As an additive, Dibutyltin dilaurate accelerates the connection of the individual reaction partners to reduce the curing time.

Dibutyltin dilaurate is a common crosslinking catalyst used for 2-component urethanes in the automotive industry or for other industrial applications, such as the coating of tanks, pipelines, or floor coverings. 

On silica adsorbed, Dibutyltin dilaurate is used in urethane-based powder coatings for areas that have to withstand high weather loads.

Soft and solid PU foams are a standard solution for plastic molded parts that have to withstand loads in everyday life, such as seats or cladding. 

Dibutyltin dilaurate is also a widely used gelling catalyst. 

The application possibilities also include elastomers.

Other Applications

The catalytic effect of the dibutyltin dilaurate is used in other areas, such as acrylic acid esters, the production of silica esters or alkyd resins. 

Print shop chemicals with DBTL content can be used for screen printing processes.

As PVC Stabilizer

It is only through stabilizers that PVC plastics are given durability with which they can be used economically. 

Dibutyltin dilaurate has stabilizing properties and protects the final product from heat and UV irradiation.

Product Variants

ATAMAN CHEMICALS offers DBTL in various product variants, specifically for individual requirement profiles.

Dibutyltin dilaurate is a PVC stabilizer and universal catalyst, for example, catalysis in the production of silicone rubbers and polyurethanes, as a binder for alkyd resins or additives in polymer processing.

Chemical formula: (CH3(CH2)10CO2)2Sn((CH2)3CH3)2

Molar mass: 631.570 g·mol−1

Appearance: Colourless oily liquid or soft waxy crystals

Odor: Fatty

Density: 1.066 g/cm3

Melting point: 22 to 24 °C (72 to 75 °F; 295 to 297 K) 

Boiling point: 205 °C at 1.3 kPa

Solubility in water: Practically insoluble (less than 1 mg/mL at 68 °F (20 °C))

Solubility: Practically insoluble in methanol

Soluble in petroleum ether, benzene, acetone, ether, carbon tetrachloride, organic esters

Vapor pressure: <0.01 hPa (0.2 mmHg at 160 °C)

Refractive index (nD): 1.4683 at 20 °C (for light at a wavelength of 589.29 nm)

Viscosity: 42 cP

Hazards and toxicity

Dibutyltin dilaurate can be absorbed through the skin. 

It irritates the skin and eyes (causes redness of skin and eyes). 

It is a neurotoxin. 

It 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 combustible.

Its vapor is denser than air (21.8 times denser than air), so it can spread on the floors, forming explosive mixtures with air. 

On fire, it emits irritating and toxic fumes and smoke, which contain tin, tin oxides, and carbon oxides.

Dibutyltin dilaurate is very reactive with acids and oxidizers.

Substance names and other identifiers

Dibutyltin di(laurate)

Dibutyltin dilaurate

Dibutyltin Dilaurate

Dibutyltin dilaurate

dibutyltin dilaurate

dibutyltin dilaurate belongs to the group Dibutyltin compounds

dibutyltin dilaurate; dibutyl[bis(dodecanoyloxy)] stannane

dibutyltin dilaurate; dibutyl[bis(dodecanoyloxy)]stannane

Translated names

dibutil-kositrov dilaurat; dibutil[bis(dodekanoiloloksi)]stanan (hr)

dibutilalavo dilauratas; dibutil[bis(dodekanoiloksi)] stananas (lt)

dibutilalvas dilaurāts; dibutil[bis(dodekanoiloksi)] stannāns (lv)

dibutilkositrov dilaurat; dibutil[bis(dodekanoiloksi)]stanan (sl)

dibutylcín-dilaurát; dibutyl[bis(dodekanoyloxy)] stannan (cs)

dibutyltenndilaurat; dibutyl[bis(dodekanoyloxi)] stannan (sv)

dibutyltin dilaurate; dibutyl[bis(dodecanoyloxy)] stannane (hu)

dibutyltin dilaurate; dibutyl[bis(dodecanoyloxy)] stannane (nl)

dibutyltin dilaurate; dibutyl[bis(dodecanoyloxy)] stannane (sk)

dibutyltin dilaurate;dibutyl[bis(dodecanoyloxy)] stannane (bg)

dibutyltindilaurat; dibutyl[bis(dodecanoyloxy)]stannan (da)

Dibutylzinndilaurat; Dibutyl[bis(dodecanoyloxy)]-stannan (de)

dibutyylitinadilauraatti; dibutyyli[bis(dodekanoyylioksi)]stannaani (fi)

dibutüültinadilauraat; dibutüül[bis(dodekanoüüloksü)]stannaan (et)

dilaurat de dibutil-staniu; dibutil[bis(dodecanoiloxi)] stanat (ro)

dilaurate de dibutylétain dibutyl[bis(dodecanoyloxy)]stannane (fr)

Dilaurato de dibutilestanho; dibutil[bis(dodecanoiloxi)]estanano (pt)

Dilaurato de dibutilestaño; dibutil-[bis(dodecanoiloxi)]-estannano (es)

dilaurato dibutilstannico; dibutil[bis(dodecanoilossi)]stannano (it)

dilaurynian dibutylocyny; dibutyl[bis(dodekanoiloksy)]wodorek cyny (pl)

dilawrat tad-dibutiltin; dibutil[bis(dodekanoilossi)] stannan (mt)

διλαουρικός διβουτυλοκασσίτερος· διβουτυλο[δις(δωδεκανοϋλοξυ)]κασσιτεράνιο (el)

CAS names

Dodecanoic acid, 1,1'-(dibutylstannylene) ester

IUPAC names

[Dibutyl(dodecanoyloxy)stannyl] dodecanoate

[dibutyl(dodecanoyloxy)stannyl] dodecanoate

[dibutyl(dodecanoyloxy)stannyl]dodecanoate

dibutyl(dodecanoyloxy)stannyl] dodecanoate

Dibutylbis((1-oxododecyl)-oxy) stannane

Dibutylbis(1-oxododecyl)oxy)stannane

Dibutylbis(lauryloxy)stannan

Dibutylcín dilaurát

dibutylstannanebis(ylium) didodecanoate

dibutylstannanebis(ylium); bis(dodecanoate)

Dibutyltin didodecanoate

DIBUTYLTIN DILAURATE

Dibutyltin Dilaurate

Dibutyltin dilaurate

dibutyltin dilaurate

Dibutyltin dilaurate

dibutyltin dilaurate

dibutyltin dilaurate, DBTL

Dibutyltin laurate

dibutyltin(2+) dilaurate

Dibutylzinndilaurat

Dodecanoic acid, 1,1'-(dibutylstannylene) ester

STANNANE, DIBUTYLBIS((1-OXODODECYL)OXY)-

Stannane, dibutylbis((1-oxododecyl)oxy)-

Stannane, dibutylbis[(1-oxododecyl)oxy]

Stannane, dibutylbis[(1-oxododecyl)oxy]-

Trade names

BRB DBTDL

D-22

DBTDL

Dibutyltindilaurate (DBT)

Fomrez SUL-4E

Fomrez« catalyst SUL-4

Mark DBTL

Metatin Catalyst 712E

Metatin Catalyst 712ES

Metatin Katalysator 712E

Metatin Katalysator 712ES

SILOPREN CATALYST 162

T-CAT B12

Tinstab BL277

DBTDL 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% bis(dodecanoyloxy)di-n-butyl-stannan aurate Ditin butyL DI-n-BUTYLDILAURYLTIN, tech-95 dodecanoic acid [dibutyl(1-oxododecoxy)stannyl] ester Dibutyltindilaurateyellowliq Di-n-butyltindilaurate,98% Dibutyltin dilaurate(DBTL) STANNANE,DIBUTYLBIS(LAUROYLOXY)- DIBUTYLTIN DILAURATE (DIBTL) Metatin 712-ES Di-n-butyltindilaurate,95% DI-N-BUTYLTIN DILAURATE (DBTL, DBTDL) DI-N-BUTYLTINCARBOXYLATE DI-N-BUTYLDILAURYLTIN DI-N-BUTYLTIN DILAURATE bis(lauroyloxy)di(n-butyl)stannane bis(lauroyloxy)dibutyl-stannan butynorate cata-chek820 davainex dbtl dibutylbis((1-oxododecyl)oxy)-stannan dibutylbis((1-oxododecyl)oxy)-Stannane dibutylbis(laurato)tin dibutylbis(lauroxy)stannane dibutylbis(lauroyloxy)-stannan dibutylbis(lauroyloxy)-ti dibutylbis[(1-oxododecyl)oxy]-stannan Dibutylbis[(1-oxododecyl)-oxy]stannane dibutylstanniumdilaurate dibutylstannylenedilaurate Dibutyltindidodecylate dibutyltinn-dodecanoate dibutyl-zinn-dilaurat di-n-butyl-tidi(dodecanoate) Ditinbutyldilaurate dxr81 fomrezsul-4 kosmos19 ks20 lankromarklt173 laudrandi-n-butylcinicity laudrandi-n-butylcinicity(czech) lauricacid,dibutylstannylenederiv lauricacid,dibutylstannylenesalt lauricacid,dibutyltinderiv lauricacid,dibutyltinderiv. laustan-b mark1038