methanesulfonic acid

CH4O3S

CAS75-75-2

Danger

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Identification

CAS Number: 75-75-2
EC Number: 200-898-6
UN Number: 3265
Index Number: 607-145-00-4
PubChem CID: 6395

Physical-chemical properties

Molecular Formula: CH4O3S
Molar Mass: 96.11 g/mol
IUPAC Name: methanesulfonic acid

Chemical Identifiers

InChI: InChI=1S/CH4O3S/c1-5(2,3)4/h1H3,(H,2,3,4)
InChI Key: AFVFQIVMOAPDHO-UHFFFAOYSA-N

Overview

methanesulfonic acid (CAS: 75-75-2) is a chemical compound widely used in industry. The molecular formula is CH4O3S. The molar mass is 96.11 g/mol.

Safety & Classification

Danger

Classification:

Skin Corr. 1B

GHS Pictograms

Corrosion

GHS05

Corrosive. Causes severe skin burns and eye damage.

HHazard Statements (H-Statements)

Describe the nature and severity of the hazard

H314

Causes severe skin burns and eye damage.

Classification according to CLP Regulation (EC) No 1272/2008. The complete list of hazard and precautionary statements can be found in the Safety Data Sheet (SDS).

First Aid Measures

Skin Contact

Harmful

Measures if substance contacts the skin

First Aid Actions

+P302IF ON SKIN:
+P352Wash with plenty of water.
+P361Take off immediately all contaminated clothing.
+P313Get medical advice/attention.

Related hazard statements:

H314

Eye Contact

Harmful

Measures if substance gets into the eyes

First Aid Actions

+P305IF IN EYES:
+P351Rinse cautiously with water for several minutes.
+P338Remove contact lenses, if present and easy to do. Continue rinsing.
+P313Get medical advice/attention.

Related hazard statements:

H314

General Measures

Emergency 112 | Poison Control: +49 30 19240 (DE), +33 1 45 42 59 59 (FR), +31 30 274 88 88 (NL)

First aid measures are based on CLP classification and associated P-statements. They do not replace the Safety Data Sheet (SDS). In case of emergency, always consult the full SDS and a physician.

Transport (ADR)

UN Number	3265
ADR Class	8
Packing Group	II
Tunnel Code	E
Proper Shipping Name	Methansulfonsäure, freie Schwefelsäure <= 5 %, flüssig
Marine Pollutant	No

Frequently Asked Questions

What is methanesulfonic acid?

methanesulfonic acid (CAS 75-75-2) is a chemical substance with the formula CH4O3S used in various industrial applications.

What are the properties of methanesulfonic acid?

methanesulfonic acid has a molar mass of 96.11 g/mol. It is classified as Skin Corr. 1B. See the technical data above for more details.

How to store methanesulfonic acid safely?

methanesulfonic acid should be stored according to the Safety Data Sheet instructions. Follow the GHS labeling and keep the substance in a cool, dry and well-ventilated place.

Is methanesulfonic acid dangerous?

methanesulfonic acid carries the signal word "Danger". 1 GHS pictograms apply. Always follow the safety instructions in the data sheet.

Where can I buy methanesulfonic acid?

You can order methanesulfonic acid (CAS 75-75-2) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.