結構式
CAS: 7143-01-3
分子式: C2H6O5S2
分子量: 174.20
中文名稱: 甲基磺酸酐
甲烷磺酸酐
英文名稱: methanesulfonic acid, anhydride
methanesulfonic anhydride
性質描述: 白色棱狀結晶。熔點71℃，沸點138℃（1.33kPa），溶于氯仿、苯、熱乙醚。
質量標準:
含量 ≥98%
甲基磺酰氯 ≤1%
鐵離子 ≤10mg/kg
重金屬 ≤10mg/kg
用途: 用于有機反應及醫藥合成。
其它信息：
Product Identification
【Product Name】Methanesulfonic anhydride
【Synonyms】Mesyl anhydride；甲基磺酸酐
【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℃)
【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
