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503-40-2

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503-40-2 Structure

503-40-2 Structure
IdentificationBack Directory
[Name]

Methanedisulphonic acid
[CAS]

503-40-2
[Synonyms]

Methionicacid
Disulfomethane
METHANEDISULFONIC ACID
Methanedisulphonic acid
methylenedisufonic acid
methylenedisulfonic acid
METHANE DISULFONIC ACID PYRIDINIUM SALT
[EINECS(EC#)]

207-966-4
[Molecular Formula]

CH4O6S2
[MDL Number]

MFCD00041888
[MOL File]

503-40-2.mol
[Molecular Weight]

176.17
Chemical PropertiesBack Directory
[Melting point ]

96-100°
[Boiling point ]

263℃ at 101.3kPa
[density ]

1.6517 (rough estimate)
[vapor pressure ]

0Pa at 25℃
[refractive index ]

1.5300 (estimate)
[storage temp. ]

Hygroscopic, -20°C Freezer, Under inert atmosphere
[solubility ]

DMSO (Sparingly, Heated), Methanol (Slightly)
[form ]

Solid
[pka]

-0.71±0.50(Predicted)
[color ]

White to Off-White
[PH]

-0.96 at 23.9℃ and 1g/L
[Water Solubility ]

2458g/L(25 ºC)
[Stability:]

Hygroscopic
[LogP]

-1.49 at 25℃ and pH1
[Dissociation constant]

-0.17 at 25℃
[EPA Substance Registry System]

Methanedisulfonic acid(503-40-2)
Safety DataBack Directory
[TSCA ]

TSCA listed
[REACH Registrations]

Active
Hazard InformationBack Directory
[Uses]

Methane disulfonic acid is used in esterification.
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