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8.06022

Methanesulfonic acid

for synthesis

Synonym(s):

Methanesulfonic acid, MSA

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About This Item

Empirical Formula (Hill Notation):
CH4O3S
CAS Number:
75-75-2
Molecular Weight:
96.11
UNSPSC Code:
12352106
EC Index Number:
200-898-6
NACRES:
NA.22
MDL number:
MFCD00007518
Assay:
≥99.0% (acidimetric)
Form:
liquid
Grade:
synthesis grade
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grade

synthesis grade

Quality Level

200

vapor pressure

<1 hPa ( 20 °C)

assay

≥99.0% (acidimetric)

form

liquid

potency

649 mg/kg LD50, oral (Rat), 200-2000 mg/kg LD50, skin (Rabbit)

bp

167 °C/13 hPa

mp

20 °C

transition temp

flash point 189 °C

solubility

1000 g/L

density

1.48 g/cm3 at 20 °C

storage temp.

2-30°C

SMILES string

[S](=O)(=O)([O-])C.[H+]

InChI

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

InChI key

AFVFQIVMOAPDHO-UHFFFAOYSA-N

Application

  • Methanesulfonic Acid in Hydrometallurgy: This paper reviews the properties of methanesulfonic acid and its applications in hydrometallurgy, highlighting its benefits over other acids. (Binnemans and Jones, 2023).
  • The Role of MSA in Aerosol Formation and Growth: This study investigates how MSA can influence aerosol formation and the associated radiative forcings, emphasizing its environmental impacts. (Hodshire et al., 2019).
  • Organic Acids in New Particle Formation: Research on the role of organic acids in enhancing MSA-driven new particle formation, providing insights into atmospheric chemistry. (Zhang et al., 2022).
  • Methanesulfonic Acid as a Sustainable Acidic Solvent: This article discusses the use of MSA for recovering metals from zinc industry residue, showcasing its applications in sustainable metallurgy. (Palden et al., 2019).

Analysis Note

Appearance of substance (visual): colourless to brownish
Assay (acidimetric): ≥ 99.0 %
Density (d 20 °C/ 4 °C): 1.478 - 1.482
Due to its specific melting range the product may be solid, liquid, a solidified melt or a supercooled melt.

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pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

8A - Combustible corrosive hazardous materials

wgk

WGK 1

flash_point_f

372.2 °F - closed cup

flash_point_c

189 °C - closed cup

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

Deleterious substance

pdsc

Group 4: Flammable liquids + Type 3 petroleums + Hazardous rank III + Water soluble liquid

fsl

Substances Subject to be Indicated Names

ishl_indicated

Substances Subject to be Notified Names

ishl_notified

8060220250: + 8060225000: + 8060220005: + 8060222501: + 8060220000: + 8060222521: + 8060229999: + 8060221000: + 8060229025: + IN2RCMM806022: + 8060220521: + 8060220501:

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