88950

Thionyl chloride

puriss., ≥99.0%

• 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

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

Safety Information

• 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): Not applicable
• PPE (personal protective equipment): Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter