Methane Sulfonic acid
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Post Date:
Oct 11,2018
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Expiry Date:
Oct 11,2019
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Detailed Description:
Cas No. :75-75-2
Payment Method: T/T D/A D/P L/C
Methane Sulfonic acid
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Methanesulfonic acid is a colorless liquid with the chemical formula CH3SO3H. It is the simplest of the alkylsulfonic acids. Salts and esters of methanesulfonic acid are known as mesylates. Methanesulfonic acid is used as an acid catalyst in organic reactions because it is non-volatile, strong acid that is soluble in organic solvents. Methanesulfonic acid is convenient for industrial applications because it is liquid at ambient temperature, while the closely related p-toluenesulfonic acid (PTSA) is solid. However, in a laboratory setting, solid PTSA is more convenient.
Methanesulfonic acid may be considered an intermediate compound between sulfuric acid (H2SO4), and methylsulfonylmethane ((CH3)2SO2), effectively replacing an -OH group with a -CH3 group at each step. This pattern can extend no further in either direction without breaking down the -SO2 group.
Methanesulfonic acid can be used in the generation of borane (BH3). By reacting methanesulfonic acid with NaBH4 in an aprotic solvent such as THF or DMS, the complex of BH3 and the solvent is formed.[2
Methanesulfonic acid
IUPAC name
Methanesulfonic acid
Other names
Methylsulfonic acid, MSA
Identifiers
CAS number 75-75-2 Y
PubChem 6395
ChemSpider 6155 Y
UNII 12EH9M7279 Y
EC number 200-898-6
ChEBI CHEBI:27376 Y
Jmol-3D images Image 1
SMILES
O=S(=O)(O)C
InChI
InChI=1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4) Y
Key: AFVFQIVMOAPDHO-UHFFFAOYSA-N Y
InChI=1/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)/f/h2H
InChI=1/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)
Key: AFVFQIVMOAPDHO-UHFFFAOYAS
Properties
Molecular formula CH4O3S
Molar mass 96.11 g mol−1
Density 1.48 g/cm3
Melting point
17-19 °C
Boiling point
167 ºC /10 mmHg, 122 ºC/1 mmHg
Acidity (pKa) -1.9[1]
Hazards
MSDS Oxford MSDS
EU classification Harmful (Xn), Corrosive (C
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CAS Registry Number:
75-75-2
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Synonyms:
;Methanesulfonicacidaqsoln;Methanesulphonic acid;Methylsulfonic Acid;Mesic acid;iron(2+) dimethanesulfonate;MSA;
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Molecular Formula:
C1H4O3S1
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Molecular Weight:
96.10096
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Molecular Structure:
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Hazard Symbols:
C:Corrosive;
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Risk Codes:
R34:;
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Safety Description:
S1/2:;
S26:;
S36:;
S45:;
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