Supplier Product Identification Physical and Chemical Properties First Aid Measures Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information
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Methanesulfonic anhydride (7143-01-3)

Supplier Product Identification Physical and Chemical Properties First Aid Measures Hazards Identification Exposure Controls/Personal Protection Fire Fighting Measures Accidental Release Measures Stability and Reactivity Transport Information

Product Identification

Product Name
Methanesulfonic anhydride
Synonyms
Mesyl anhydride
methylsulfonyl methanesulfonate
CAS
7143-01-3
Formula
C2H6O5S2
Molecular Weight
174.2
EINECS
230-442-1
Beilstein/Gmelin
972316
Beilstein Reference
4-04-00-00028
EC Class
corrosive

Physical and Chemical Properties

Solubility in water
Very soluble
Melting Point
63 - 66
Boiling Point
289
Vapor Pressure
0.004 (25 C)
Partition Coefficient
-.93
Heat Of Vaporization
50.7 kJ/mol
Usage
May be used to generate mesylates.

First Aid Measures

Ingestion
Seek medical assistance.
Inhalation
Move victim to fresh air. Apply artificial respiration if victim is not breathing. Do not use mouth-to-mouth method if victim ingested or inhaled the substance; induce artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device. Administer oxygen if breathing is difficult.
Skin
Remove and isolate contaminated clothing and shoes. Immediately flush with running water for at least 20 minutes. For minor skin contact, avoid spreading material on unaffected skin.
Eyes
Immediately flush with running water for at least 20 minutes.

Hazards Identification

Ingestion
See Inhalation.
Inhalation
TOXIC; inhalation, ingestion, or skin contact with material may cause severe injury or death. Effects of contact or inhalation may be delayed.
Skin
Contact with molten substance may cause severe burns to skin and eyes. See Inhalation.
Eyes
See Inhalation.
Hazards
Contact with metals may evolve flammable hydrogen gas.
EC Risk Phrase
R 14 35
EC Safety Phrase
S 26 36/37/39 45
UN (DOT)
2586

Exposure Controls/Personal Protection

Personal Protection
Wear appropriate protective gloves, clothing and goggles.
Respirators
Wear positive pressure self-contained breathing apparatus (SCBA).

Fire Fighting Measures

Flash Point
129
Fire Fighting
Small Fires: Dry chemical, carbon dioxide or water spray. Large Fires: Dry chemical, carbon dioxide, alcohol-resistant foam or water spray.
Fire Potential
Combustible material: may burn but does not ignite readily.

Accidental Release Measures

Small spills/leaks
ELIMINATE all ignition sources. Do not touch damaged containers or spilled material unless wearing appropriate protective clothing. Stop leak if you can do it without risk. Absorb or cover with dry earth, sand or other non-combustible material and transfer to containers. DO NOT GET WATER INSIDE CONTAINERS.

Stability and Reactivity

Disposal Code
4
Combustion Products
Fire may produce irritating, corrosive and/or toxic gases.

Transport Information

UN Number
2586
HS Code
2904 10 00
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