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Merck
CN

11317

甲基磺酸

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线性分子式:
CH3SO3H
化学文摘社编号:
75-75-2
分子量:
96.11
EC Number:
200-898-6
UNSPSC Code:
12352100
NACRES:
NA.21
Beilstein/REAXYS Number:
1446024
MDL number:
MFCD00007518

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InChI key

AFVFQIVMOAPDHO-UHFFFAOYSA-N

InChI

1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)

SMILES string

O=S(O)(C)=O

biological source

synthetic

vapor density

3.3 (vs air)

vapor pressure

1 mmHg ( 20 °C)

assay

98.0-102.0% (1 M NaOH, T)

form

liquid

impurities

≤5 ppm ethyl methansesulfonate (GC), ≤5 ppm isopropyl methanesulfonate (GC), ≤5 ppm methanesulfonyl chloride (GC), ≤5 ppm methyl methanesulfonate (GC)

evapn. residue

≤0.1%

Quality Level

500

bp

167 °C/10 mmHg (lit.)

mp

17-19 °C (lit.)

density

1.475-1.485 g/mL at 20 °C, 1.481 g/mL at 25 °C (lit.)

anion traces

chloride (Cl-): ≤50 ppm, sulfate (SO42-): ≤200 ppm

cation traces

Ta: ≤5 ppm

suitability

corresponds for IR spectroscopy

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pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Dam. 1 - Met. Corr. 1 - Skin Corr. 1B - STOT SE 3

target_organs

Respiratory system

存储类别

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

372.2 °F - closed cup

flash_point_c

189 °C - closed cup

法规信息

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历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
BCCB2111
BCBT5968
BCBM8972V
BCBP8446V
BCBG8834V

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Physical chemistry chemical physics : PCCP, 15(14), 5140-5150 (2013-03-02)
The gas phase reaction between methane sulfonic acid (CH3SO3H; MSA) and the hydroxyl radical (HO), without and with a water molecule, was investigated with DFT-B3LYP and CCSD(T)-F12 methods. For the bare reaction we have found two reaction mechanisms, involving proton
Eric D Nacsa et al.
Organic letters, 15(1), 38-41 (2012-12-15)
The cyclopropenone catalyzed nucleophilic substitution of alcohols by methanesulfonate ion with inversion of configuration is described. This work provides an alternative to the Mitsunobu reaction that avoids the use of azodicarboxylates and generation of hydrazine and phosphine oxide byproducts. This
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Physical chemistry chemical physics : PCCP, 14(32), 11441-11447 (2012-07-18)
The solvation effect of 1H-1,2,4-triazole towards imidazolium methanesulfonate was studied by blending imidazolium methanesulfonate and 1H-1,2,4-triazole. Upon addition of 1H-1,2,4-triazole, the melting point of imidazolium methanesulfonate was lowered to less than 100 °C while maintaining the high ionic conductivity for
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