Sodium bisulphite, GR

Name: Sodium bisulphite, GR
Brand: Vaqora Chemicals
SKU: VQ-014121

About Sodium bisulphite, GR

Listed under CAS 7631-90-5, Sodium bisulphite is an alkali metal compound available from Vaqora Chemicals (AR grade). The compound has the formula HNaO3S, corresponding to a molecular weight of 104.06 g/mol. Systematically, it is named sodium hydrogen sulfite. Common synonyms include sodium hydrogensulfite and Monosodium sulfite.

In its supplied form it is a white powder or crystalline or crystalline powder. Key physical data: a melting point of 150 °C (dec.) and a density of 1.48 g/cm3. Store in a tightly closed container in a cool, dry and well-ventilated place. Under GHS it is labelled “Warning”, so handle it with suitable PPE and consult the SDS.

It is commonly used for food and flavour applications and materials research. Our customers for this product work in academic and industrial research.

We offer Sodium bisulphite in 500 g, 5 kg, 25 kg and 4 x 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Food & flavour applications
Materials research

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sodium bisulphite, GR
Catalogue No.	VQ-014121
CAS Number	7631-90-5
IUPAC name	sodium hydrogen sulfite
Molecular formula	HNaO₃S
Molecular weight	104.06 g/mol
Exact mass	103.9544
Grade	AR
HSN code	28321010
InChIKey	DWAQJAXMDSEUJJ-UHFFFAOYSA-M
SMILES	OS(=O)[O-].[Na+]
PubChem CID	23665763

Physical properties
Physical form	Crystalline
Appearance	White powder or crystalline or crystalline powder
Melting point	150 °C (dec.)
Density	1.48 g/cm3
H-bond donors / acceptors	1 / 4
TPSA	79.6 Å²
UN number	UN 2693
Synonyms	sodium hydrogensulfite, Monosodium sulfite, Sulfurous acid, monosodium salt, Sodium sulhydrate, Uantax SBS, Hydrogen sodium sulfite, Hydrogen sulfite sodium, Monosodic sulphite, Sodium hydrosulfite(DOT), Bisulfite de sodium, Sodium bisulfite (1:1), Sodium sulfite (NaHSO3)

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H302Harmful if swallowed

Precautionary statements: P264, P270, P301 + P317, P330, 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

Other grades of CAS 7631-90-5

Reference Standard

Sodium Bisulfite

CAS: 7631-90-5
Formula: HNaO₃S
MW: 104.06 g/mol

In stock

Sodium bisulphite

CAS: 7631-90-5
Formula: HNaO₃S
MW: 104.06 g/mol

VQ-014119

ACS

Sodium bisulphite ACS reagent

CAS: 7631-90-5
Formula: HNaO₃S
MW: 104.06 g/mol

VQ-014120

Synthesis

Sodium Bisulphite Solution In Water 39%, for synthesis

CAS: 7631-90-5
Formula: HNaO₃S
MW: 104.06 g/mol

VQ-046540

Frequently asked questions

What is the CAS number of Sodium bisulphite, GR?

The CAS Registry Number of Sodium bisulphite, GR is 7631-90-5. It is also known as sodium hydrogensulfite, Monosodium sulfite, Sulfurous acid, monosodium salt.

What is the molecular formula and molecular weight of Sodium bisulphite, GR?

Sodium bisulphite, GR has the molecular formula HNaO3S and a molecular weight of 104.06 g/mol. Its IUPAC name is sodium hydrogen sulfite.

Which grade and pack sizes of Sodium bisulphite, GR can I order?

We supply Sodium bisulphite, GR in AR grade, in 500 g, 5 kg, 25 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sodium bisulphite, GR?

Yes. Every lot of Sodium bisulphite, GR 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 Sodium bisulphite, GR be shipped internationally?

Yes. Sodium bisulphite, GR is classified as hazardous (UN 2693), 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.