乙磺酰氯

Description

Ethanesulfonyl chloride · CAS 594-44-5 · C2H5ClO2S. UNII B56ZOC898A. Boiling Point: 177.5 °C; Vapor Pressure: 1.29 [mmHg].

Identification

CAS Registry Number	594-44-5
PubChem CID	11667
Molecular formula	C2H5ClO2S
IUPAC name	ethanesulfonyl chloride
UNII (FDA)	B56ZOC898A

Computed Descriptors

Molecular Weight	128.58
XLogP3	0.8
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	2
Rotatable Bond Count	1
Exact Mass	127.9698783
Monoisotopic Mass	127.9698783
Topological Polar Surface Area	42.5
Heavy Atom Count	6
Formal Charge	0

Physical & Chemical Properties

Boiling Point	177.5 °C
Vapor Pressure	1.29 [mmHg]

Physical description & handling notes

• Pale yellow liquid; [HSDB] Colorless or yellow liquid; [MSDSonline]
• Oil
• Pale yellow
• Soluble in carbon disulfide
• Slightly soluble (decomposes) in water and alcohol; very soluble in ether and dichloromethane.
• When heated to decomposition it emits very toxic fumes of /hydrogen chloride and sulfur oxide/.

GHS Hazard Classification

Reported hazard statements	H302 (96.6%), H310 (81%), H312 (13.8%), H314 (100%), H330 (86.2%), H335 (10.3%)

Documented Uses

• Used to make sulfonyl-substituted imides, methide lithium salts, and pentafluoroethanesulfonyl fluoride, a fluorinated surfactant; [HSDB]
• Intermediate in the syntheses of new, low-cost, non-fluorinated, sulfonyl-substituted imide and methide lithium salts.
• Intermediate in the preparation of the fluorinated surfactant pentafluoroethanesulfonyl fluoride.
• Alkanesulfonyl chlorides are manufactured from mercaptans or disulfides and chlorine using a loop reactor having an ejector, wherein mercaptan or disulfide is dispersed or dissolved into circulating aqueous solvent before the ejector and alowed to react with chlorine supplied through the aspirator of the ejector.
• Mercaptans or disulfide in aqueous solvents are reacted with chlorine gas in dark to produce alkanesulfonyl chloride without chloro chain byproducts. Thus, ... ethyl mercaptan was reacted with ... chlorine gas over 4 hours in /the/ dark in ... pure water keeping the reaction temperature under 20 °C to give ethanesulfonyl chloride.
• Production volumes for non-confidential chemicals reported under the Inventory Update Rule. [Table#7143]

Synonyms

ETHANESULFONYL CHLORIDE; Ethylsulfonyl chloride; Ethylsulfochloride; 1-Ethanesulfonyl chloride; Ethanesulphonyl chloride; TL 77; ethylsulfuryl chloride; EINECS 209-842-5; NSC 8649; UNII-B56ZOC898A; Ethane sulfochloride; BRN 0773865; B56ZOC898A; HSDB 7487; NSC-8649; DTXSID0060486

Frequently Asked Questions

What are the CAS number and molecular formula of Ethanesulfonyl chloride?

CAS 594-44-5; molecular formula C2H5ClO2S; molecular weight — g/mol.

What other names is Ethanesulfonyl chloride known by?

ETHANESULFONYL CHLORIDE, Ethylsulfonyl chloride, Ethylsulfochloride, 1-Ethanesulfonyl chloride, Ethanesulphonyl chloride, TL 77.

Is Ethanesulfonyl chloride classified as hazardous?

Hazard statements reported: H302, H310, H312, H314, H330.

What are the key physical properties of Ethanesulfonyl chloride?

Boiling Point: 177.5 °C; Vapor Pressure: 1.29 [mmHg].

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.