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sulfurous acid

H2O3S

CAS7782-99-2

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Identification

CAS Number: 7782-99-2
EC Number: 231-973-1
UN Number: 1833
PubChem CID: 1100

Physical-chemical properties

Molecular Formula: H2O3S
Molar Mass: 82.08 g/mol
IUPAC Name: sulfurous acid

Chemical Identifiers

InChI: InChI=1S/H2O3S/c1-4(2)3/h(H2,1,2,3)
InChI Key: LSNNMFCWUKXFEE-UHFFFAOYSA-N

Overview

sulfurous acid (CAS: 7782-99-2) is a chemical compound widely used in industry. The molecular formula is H2O3S. The molar mass is 82.08 g/mol.

Safety & Classification

No Hazard Classification

This substance is not classified as hazardous according to CLP Regulation (EC) No 1272/2008.

Transport (ADR)

UN Number	1833
ADR Class	8
Packing Group	II
Tunnel Code	E
Proper Shipping Name	Schwefelige Säure
Marine Pollutant	No

Frequently Asked Questions

What is sulfurous acid?

sulfurous acid (CAS 7782-99-2) is a chemical substance with the formula H2O3S used in various industrial applications.

What are the properties of sulfurous acid?

sulfurous acid has a molar mass of 82.08 g/mol. See the technical data above for more details.

How to store sulfurous acid safely?

sulfurous 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 sulfurous acid dangerous?

The hazard level of sulfurous acid depends on the application. Always follow the safety instructions in the data sheet.

Where can I buy sulfurous acid?

You can order sulfurous acid (CAS 7782-99-2) from OYSI. We deliver across Europe and offer technical consulting as well as complete compliance documentation.