Agent Name

Dichlorodioctylstannane

Alternative Name

Di-n-octyltin dichloride

CAS Number

3542-36-7

Formula

C16-H34-Cl2-Sn

Major Category

Metals

Synonyms

DOTC; Di-n-octyl-zinn dichlorid [German]; Di-n-octyltin dichloride; Di-n-octyltindichloride; Dichlorodioctyltin; Dioctylstannium dichloride; Dioctyltin dichloride; Stannane, dioctyldichloro-; Tin, dioctyl-, dichloride; Stannane, dichlorodioctyl-; [ChemIDplus] Dioctyldichlorotin; DOTCl; [OECD SIDS] Di-n-octyldichlorotin; [Alfa Aesar MSDS]

Category

Tin Compounds, Organic

Description

White solid; [OECD SIDS] Crystalline solid; [Alfa Aesar MSDS]

Sources/Uses

Always produced as a mixture with monooctyltin trichloride (MOTC, CAS# 3091-25-6); Used as a heat stabilizer for polyvinyl chloride (PVC) and chlorinated PVC (CPVC) with applications including films (including indirect food contact), sheets, injection mouldings, pipes, and sidings; [OECD SIDS]

Comments

The thioglycolate ester isomers are dioctyltin bis(2-ethylhexyl thioglycolate) CAS# 15571-58-1 and dioctyltin bis(isooctyl thioglycolate) CAS# 26401-97-8; [OECD SIDS] An irritant; Toxic by ingestion, inhalation, and skin absorption; [Alfa Aesar MSDS] See "Tin, organic compounds." See "Trichlorooctylstannane."

Exposure Assessment
Skin Designation (ACGIH)

Yes

TLV (ACGIH)

0.1 mg/m3, as Sn

STEL (ACGIH)

0.2 mg/m3, as Sn

PEL (OSHA)

0.1 mg/m3, as Sn

MAK

0.1 mg/m3, inhalable fraction, as Sn

IDLH (NIOSH)

25 mg/m3, as Sn

Vapor Pressure

3.9E-6 mm Hg

Lethal Concentration

LC50 (rat) = 390 mg/m3/1hr (particle sizes = 3-10 microns)

Explanatory Notes

LC50 (rat) = 37,000 mg/m3/1hr (particle sizes = 2.5-3.5 microns); [OECD SIDS]

Adverse Effects
ACGIH Carcinogen

Not Classifiable

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Other Information

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