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88950

Thionyl chloride

Name: Thionyl chloride
Brand: SIAL

puriss., ≥99.0%

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About This Item

Linear Formula:

SOCl₂

CAS Number:

7719-09-7

Molecular Weight:

118.97

EC Number:

231-748-8

UNSPSC Code:

12352300

PubChem Substance ID:

329769678

Beilstein/REAXYS Number:

1209273

MDL number:

MFCD00011449

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Properties

vapor pressure

97 mmHg ( 20 °C)

grade

puriss.

assay

≥99.0%

form

liquid

color

APHA: ≤50

refractive index

n20/D 1.518 (lit.)

bp

79 °C (lit.)

mp

−105 °C (lit.)

density

1.631 g/mL at 25 °C (lit.)

SMILES string

ClS(Cl)=O

InChI

1S/Cl2OS/c1-4(2)3

InChI key

FYSNRJHAOHDILO-UHFFFAOYSA-N

Description

General description

Thionyl chloride is a sulfur containing acid halide. It participates in the preparation of butadiyne (diacetylene). On reaction with benzaldehyde, it affords benzylidene dichloride. It is widely employed for the transformation of alcohols into reactive alkyl chlorides.

Application

Thionyl chloride may be employed for the sulfonation of aromatic compounds. It may be used in the synthesis of following:

cyclooctasulfur oxide
disulfuroxide
acetylchloride
organochlorine compounds
G-series nerve agents such as phosgene or chloropicrine
1-(chloromethyl)-3,5-dimethylbenzene

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Pictograms

GHS06,GHS05

Signal Word

Danger

Hazard Codes

H302,H314,H331,H335

Precautionary Statements

P261 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1A - STOT SE 3

Target Organs

Respiratory system

supp_hazards

EUH014,EUH029

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)