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Thionyl Chloride

  • Product Name: Thionyl chloride
  • Cas No.: 7719-09-7
  • Purity: 99%
  • MF: SOCl2
  • Appearance: Colourless liquid (yellows on ageing)
  • Package: Drum
  • Certificate: ISO
  • Application: It is a chemical compound that is primarily used as a reagent in various chemical reactions, particularly in organic synthesis. It is commonly used for the conversion of carboxylic acids into acyl chlorides, and also for the conversion of alcohols into alkyl chlorides.
  • Sample: Available

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Product Detail

Thionyl chloride, is a kind of inorganic compound, chemical formula for SOCl₂, colorless or yellow odor liquid, has a strong irritating odor, can be mixed in benzene, chloroform, carbon tetrachloride and other organic solvents, water hydrolysis, heating decomposition, mainly used in the manufacture of acyl chloride, but also used in pesticides, medicine, dyes and other production.

Product Parameter

Synonyms Thionyl dichloride, Sulfurous oxychloride, Sulfinyl chloride, Sulfinyl dichloride, Dichlorosulfoxide, Sulfur oxide dichloride, Sulfur monoxide dichloride, Sulfuryl(IV) chloride
Chemical Formula SOCl2 CAS Number 7719/9/7
Molar mass 118.97 g/mol UN number 1836
Appearance Colourless liquid (yellows on ageing)
Odor Pungent and unpleasant
Density 1.638 g/cm3, liquid
Melting point −104.5 °C (−156.1 °F; 168.7 K)
Boiling point 4.6 °C (166.3 °F; 347.8 K)
Vapor pressure 384 Pa (−40 °C); 4.7 kPa (0 °C); 15.7 kPa (25 °C)
Refractive index 1.517 (20 °C)
Flash point Non-flammable
Solubility Soluble in most aprotic solvents: toluene, chloroform, diethyl ether. Reacts with protic solvents such as alcohols
Solubility in water Reacts
Stability Reacts violently with water. Incompatible with most common metals, strong reducing agents, strong bases, alcohols, amines.
Storage condition Store at RT



1. Synthetic chemicals: sulfoxide chloride is an important intermediate compound commonly used in the synthesis of other organic and inorganic compounds. It can be used to manufacture dyes, drugs, pesticides, rubber additives and other chemical products.

2. Insecticides and herbicides: chemical sulfoxide chloride has bactericidal and insecticidal effects, and is often used in the preparation of insecticides and herbicides. It can control the growth of pests and weeds on crops.

3. Solvent: sulfoxide chloride is a volatile solvent that can dissolve many organic compounds. It is often used in chemistry laboratories as a solvent, especially in organic synthesis for catalytic reactions or as a reaction medium.

4. Refrigerant: Due to its low boiling point and freezing capacity, sulfoxide chloride can be used as a refrigerant or refrigerant, for example in low temperature experiments for the preparation of freezing conditions.

Multiple uses of products

It use in Pharmaceutical Industry,Chemical Manufacturing,Agrochemical Industry,Battery Manufacturing,Electronics Industry