Dibutyltin dichloride Property

Melting point:

39 °C

Boiling point:

135 °C10 mm Hg(lit.)

Density 

1.4

vapor pressure 

0.0016 hPa (25 °C)

refractive index 

1.4991

Flash point:

>230 °F

storage temp. 

Store below +30°C.

solubility 

0.32g/l

form 

Crystalline

color 

White

Specific Gravity

1.36

Water Solubility 

320 mg/L, hydrolises in hot water

Sensitive 

Moisture Sensitive

BRN 

3535484

Exposure limits

ACGIH: TWA 0.1 mg/m3; STEL 0.2 mg/m3 (Skin)
NIOSH: IDLH 25 mg/m3; TWA 0.1 mg/m3

CAS DataBase Reference

683-18-1(CAS DataBase Reference)

NIST Chemistry Reference

Di-n-butyltindichloride(683-18-1)

EPA Substance Registry System

Dibutyltin dichloride (683-18-1)

Safety

Hazard Codes 

T,N,C,T+

Risk Statements 

25-34-51/53-63-23/24/25-68-50/53-48/25-26-21-61-60

Safety Statements 

26-36/37/39-45-61-38-28A-60-53

RIDADR 

UN 2928 6.1/PG 2

WGK Germany 

3

RTECS 

WH7100000

F 

10-21

TSCA 

Yes

HazardClass 

6.1

PackingGroup 

II

HS Code 

29310095

Hazardous Substances Data

683-18-1(Hazardous Substances Data)

Toxicity

LD50 orally in Rabbit: 50 mg/kg

Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Danger

Hazard statements

H301Toxic if swalloed

H312Harmful in contact with skin

H314Causes severe skin burns and eye damage

H317May cause an allergic skin reaction

H330Fatal if inhaled

H341Suspected of causing genetic defects

H370Causes damage to organs

H372Causes damage to organs through prolonged or repeated exposure

H410Very toxic to aquatic life with long lasting effects

Precautionary statements

P260Do not breathe dust/fume/gas/mist/vapours/spray.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P303+P361+P353IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

Dibutyltin dichloride Chemical Properties,Usage,Production

Chemical Properties

Dibutyltin dichloride is a white to beige crystalline low melting mass. soluble in organic solvents such as benzene, toluene, ether and alcohols. It is difficult to dissolve in water. Decomposition (hydrolysis) occurs in hot water. Dibutyltin dichloride is flammable, low volatile and has a pungent odor.

Uses

Dibutyltin dichloride is used as an organotin intermediate. It serves as heat and light stabilizer for polyvinyl chloride plastics. It is also used in the preparation of methyl 2-(methoxycarbonylmethyl)-5-iodobenzene by reacting with 2,5-diiodobenzoic acid. It acts as an esterification catalyst and a veterinary vermicide and tapeworm remedy. Further, it is used as ion exchange agent, process regulators and processing aids.

Preparation

Dibutyltin dichloride is manufactured from crude tetrabutyltin and tin tetrachloride and is usually catalysed with aluminium trichloride (Blunden & Evans, 1989; Gaver, 1997; Thoonen et al., 2001)

Safety Profile

Poison by ingestion, intravenous, and intraperitoneal routes. Moderately toxic by skin contact. A severe skin and eye irritant. Experimental reproductive effects. Mutation data reported. See also TIN COMPOUNDS. Combustible when exposed to heat or flame. A dangerous material; emits highly toxic fumes of HCl; wdl react with water or steam to produce heat and toxic fumes; can react vigorously with oxidizing materials. To Poison by ingestion, intravenous, and intraperitoneal routes. Moderately toxic by skin contact. A severe skin and eye irritant. Experimental reproductive effects. Mutation data reported. See also TIN COMPOUNDS. Combustible when exposed to heat or flame. A dangerous material; emits highly toxic fumes of HCl; wdl react with water or steam to produce heat and toxic fumes; can react vigorously with oxidizing materials. Tofight fue, use water, foam, CO2, dry chemical.