Thionyl chloride
SIAL/320536 - reagent grade, 97%
CAS Number: 7719-09-7
Empirical Formula (Hill Notation): Cl2OS
Molecular Weight: 118.97
EC Number: 231-748-8
MDL Number: MFCD00011449
Linear Formula: SOCl2
Product Type: Chemical
assay | 97% |
bp | 79 °C (lit.) |
density | 1.631 g/mL at 25 °C (lit.) |
form | liquid |
grade | reagent grade |
InChI | 1S/Cl2OS/c1-4(2)3 |
InChI key | FYSNRJHAOHDILO-UHFFFAOYSA |
mp | −105 °C (lit.) |
Quality Level | 100 ![]() |
refractive index | n |
SMILES string | ClS(Cl)=O |
vapor pressure | 97 mmHg ( 20 °C) |
Application: | Thionyl chloride may be used in the following processes: • To facilitate the synthesis of indenones from 3-hydroxyindanones via dehydroxylation. • To functionalize silica gel for thioacetalization of aldehydes. • Conversion of tert-butyl esters to acid chlorides. • Conversion of aliphatic and aromatic sulfoxides to sulfides in the presence of triphenylphosphine. |
General description: | Thionyl chloride is an inorganic acid chloride mainly used as a reagent to prepare carboxylic acid chlorides from carboxylic acids. |
Packaging: | 1 L in Sure/Seal™ |
Symbol | ![]() ![]() |
Signal word | Danger |
Hazard statements | H302 + H332 - H314 - H335 |
Precautionary statements | P261 - P280 - P301 + P312 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 |
Hazard Codes | C |
Risk Statements | 14-20/22-29-35 |
Safety Statements | 26-36/37/39-45 |
RIDADR | UN 1836 8 / PGI |
WGK Germany | WGK 1 |
Flash Point(F) | Not applicable |
Flash Point(C) | Not applicable |
Supplemental Hazard Statements | EUH014 - EUH029 |
Purity | 97% |
bp | 79 °C (lit.) |
mp | −105 °C (lit.) |
Density | 1.631 g/mL at 25 °C (lit.) |
Refractive Index | n |
UNSPSC | 12352300 |