Methanesulfonic Acid

Product name	Methanesulfonic Acid
English name	Methanesulfonic acid
Alias	Methanesulfonicacidaqsoln; Methanesulphonic acid; Methylsulfonic Acid; Mesic acid; iron(2+) dimethanesulfonate; MSA
CAS RN	75-75-2;17696-73-0
EINECS No.	200-898-6;243-669-6
Molecular formula	C₁H₄O₃S₁
Molecular weight	96.10096
Dangerous mark	C:Corrosive
Risk phrases	R34;
Safety term	S1/2; S26; S36; S45;
Physico-chemical property	White or light brown oily liquid; it is solid under low temperature; melting point: 20℃; boiling point: 167℃(13.33kPa), 122℃(0.133kPa); relative density: 1.4812(18℃); refractive index: 1.4317(16℃); soluble in water, alcohol and ether; insoluble inalkane, benzene, methyl benzene; strong corrosive action on metal iron, copper and lead
Uses	As catalyst of solvent, alkylation, esterification and polymerization reaction; also applied in medical and electroplating industry

Properties

Methanesulfonic acid is a kind of caustic chemical, which has a wide application prospect in electroplating field. It has been proved to be a good substitute for fluoroboric acid or phenol sulfonic acid. Methanesulfonate electroplating solution has been applied to tin and tin lead alloy electroplating, and the product features are as follows: 1. Bright pure tin electroplating of methanesulfonate type, with fine crystal, uniform coating, bright silver white, good solderability, is suitable for electronic industry. 2. The bath has high plating speed, wide current density range, fast deposition speed and excellent deep plating ability. 3. Good weldability can be maintained after standard aging test or long-term storage. 4. No fluorine boric acid, easy to treat waste water, low corrosiveness, conducive to environmental protection.

CAS No.

75-75-2

Formula

CH4O3S

Molecular Mass

96.10570

Exact Mass

95.98810

PSA

62.75000

Logp

0.58480