Butylchlorodihydroxytin

Synonym(s):Butylchlorodihydroxystannane

CAS NO.：13355-96-9
Empirical Formula: C4H11ClO2Sn
Molecular Weight: 245.29
MDL number: MFCD00015822
EINECS: 236-406-1
SAFETY DATA SHEET (SDS)
Update Date: 2026-05-28 03:48:29

What is Butylchlorodihydroxytin?

Description

Butylchlorodihydroxytin also known as Butyltin chloride dihydroxide, butyl(chloro)stannanediol, is one of several organotin compounds which are active as an esterification catalysts at a temperature range of 200-230 °C. It is a non-acidic white solid which has C4H11ClO2Sn as chemical formula. It dissolves by reaction on heating with alcohols or carboxylic acids. The resulting active is soluble in ester systems and remains in the ester product.

The Uses of Butylchlorodihydroxytin

Butylchlorodihydroxytin is an amorphous, hydrolytically stable butyl tin chloride dihydroxide. It can be used for esterification, polycondensation and transesterification reactions. The catalyst is used to synthesize saturated polyester resin for powder coatings. Other uses include:
production of unsaturated polyester resins for gel coat, sheet molding, and cast molding applications
in transesterification reactions run at temperatures between 140-180°C to produce esters and anti-oxidants
in the production of PBT engineering resins for the automotive and construction markets

Properties of Butylchlorodihydroxytin

Melting point:	150 °C (dec.)(lit.)
Boiling point:	243.2±23.0 °C(Predicted)
Density	1,26 g/cm³
vapor pressure	0.061Pa at 20℃
storage temp.	Store below +30°C.
solubility	1.03mg/L in organic solvents at 20 ℃
pka	2.98±0.70(Predicted)
Specific Gravity	1.26
Water Solubility	1.03mg/L at 20℃
Hydrolytic Sensitivity	4: no reaction with water under neutral conditions
CAS DataBase Reference	13355-96-9(CAS DataBase Reference)
EPA Substance Registry System	Stannane, butylchlorodihydroxy- (13355-96-9)

Safety information for Butylchlorodihydroxytin

Signal word	Warning
Pictogram(s)	Exclamation Mark Irritant GHS07
GHS Hazard Statements	H315:Skin corrosion/irritation H319:Serious eye damage/eye irritation H335:Specific target organ toxicity, single exposure;Respiratory tract irritation
Precautionary Statement Codes	P261:Avoid breathing dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P301+P312:IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.