Sulfurous acid, ACS, 6.0% SO{2} min, Thermo Scientific Chemicals

Description

Sulfurous acid is used as a reducing agent, bleaching agent and disinfectant. It is utilized for bleaching of moistened wool, straw for hats, and other materials injured by chlorine. It finds application as a disinfectant as well as used externally for its parasiticidal effect in various skin diseases. Its derivative viz. sulfites are included in antiseptics, antifermentatives, and antizymotics.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Specifications

Chemical Identifiers

• CAS: 7782-99-2
• Molecular Formula: H2O3S
• Molecular Weight (g/mol): 82.073
• MDL Number: MFCD00011335
• InChI Key: LSNNMFCWUKXFEE-UHFFFAOYSA-N
• Synonym: sulphurous acid, sulfur dioxide solution, schweflige saure german, h2so3, unii-j1p7893f4j, schweflige saure, acide sulfureux, acido sulfuroso, schweflige saeure, trioxosulfuric acid
• PubChem CID: 1100
• ChEBI: CHEBI:48854
• IUPAC Name: sulfurous acid
• SMILES: OS(=O)O

• Appearance: Colourless liquid
• Color: Colorless
• Density: 1.03 g/cm³ at 20°C
• Odor: Pungent
• Sensitivity: Air Sensitive
• Quantity: 4 x 500 mL
• Physical Form: Liquid
• UN Number: 1833
• Solubility Information: Miscible with water.
• Formula Weight: 82.08
• Grade: ACS
• Chemical Name or Material: Sulfurous Acid, 6.0% SO₂ min.

Safety and Handling

Hazard Category	H319-H335
Precautionary Statement	P261-P264b-P271-P280i-P304+P340-P305+P351+P338-P312-P501c
DOTInformation	DOT Class: 8, Packaging Group: II
EINECSNumber	231-973-1
RTECSNumber	WT2775000
TSCA	Yes
Recommended Storage	Ambient temperatures; Store under Argon

SDS

RUO – Research Use Only