Sulphurous acid, GR solution app. 5.6%

Name: Sulphurous acid, GR solution app. 5.6%
Brand: Vaqora Chemicals
SKU: VQ-016045

About Sulphurous acid, GR solution app. 5.6%

Sulphurous acid (CAS 7782-99-2) is an inorganic reagent offered by Vaqora Chemicals in AR grade at a purity of 5.6%. Formula H2O3S, molecular weight 82.08 g/mol. The IUPAC name is sulfurous acid. It is also known as Sulfurous anhydride or Schweflige saure.

It is supplied as a colourless liquid. Reported physical data include a density of 1.03 g/mL at 25 °C. Keep the container tightly sealed and store it in a cool, dry area. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Key uses span materials research and chemical synthesis. Our customers for this product work in academic and industrial research.

Vaqora Chemicals supplies Sulphurous acid in 500 mL, 16 x 500 mL and 4 x 2.5 L packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Materials research
Chemical synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sulphurous acid, GR solution app. 5.6%
Catalogue No.	VQ-016045
CAS Number	7782-99-2
IUPAC name	sulfurous acid
Molecular formula	H₂O₃S
Molecular weight	82.08 g/mol
Exact mass	81.9725
Grade	AR
Purity / assay	5.6%
HSN code	38229090
InChIKey	LSNNMFCWUKXFEE-UHFFFAOYSA-N
SMILES	OS(=O)O
PubChem CID	1100

Physical properties
Physical form	Solution
Appearance	Colourless liquid
Density	1.03 g/mL at 25 °C
LogP (XLogP3)	-0.5
H-bond donors / acceptors	2 / 4
TPSA	76.7 Å²
UN number	UN 1833
Synonyms	Sulfurous anhydride, Schweflige saure, H2SO3, acide sulfureux, acido sulfuroso, schweflige Saeure, trioxosulfuric acid, S(O)(OH)2, (SO(OH)2), [SO(OH)2], H2O3S, Trioxosulphate(IV)

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H314Causes severe skin burns and eye damage
H318Causes serious eye damage
H332Harmful if inhaled

Precautionary statements: P260, P261, P264, P264 + P265, P271, P280, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P317, P321, P363, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Frequently asked questions

What is the CAS number of Sulphurous acid, GR solution app. 5.6%?

The CAS Registry Number of Sulphurous acid, GR solution app. 5.6% is 7782-99-2. It is also known as Sulfurous anhydride, Schweflige saure, H2SO3.

What is the molecular formula and molecular weight of Sulphurous acid, GR solution app. 5.6%?

Sulphurous acid, GR solution app. 5.6% has the molecular formula H2O3S and a molecular weight of 82.08 g/mol. Its IUPAC name is sulfurous acid.

Which grade and pack sizes of Sulphurous acid, GR solution app. 5.6% can I order?

We supply Sulphurous acid, GR solution app. 5.6% in AR (5.6%) grade, in 500 mL, 16 x 500 mL, 4 x 2.5 L packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sulphurous acid, GR solution app. 5.6%?

Yes. Every lot of Sulphurous acid, GR solution app. 5.6% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Sulphurous acid, GR solution app. 5.6% be shipped internationally?

Yes. Sulphurous acid, GR solution app. 5.6% is classified as hazardous (UN 1833), so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.