Sodium bisulphite ACS reagent

Name: Sodium bisulphite ACS reagent
Brand: Vaqora Chemicals
SKU: VQ-014120

About Sodium bisulphite ACS reagent

Listed under CAS 7631-90-5, Sodium bisulphite ACS reagent is an alkali metal compound available from Vaqora Chemicals in ACS grade at a purity of ≥58.5%. The compound has the formula HNaO3S, corresponding to a molecular weight of 104.06 g/mol. Its systematic (IUPAC) name is sodium hydrogen sulfite. It is also known as sodium hydrogensulfite or Sodium bisulphite.

The material typically appears as a white powder or crystalline or crystalline powder. Key physical data: a density of 1.48 g/cm3. Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Warning”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include buffer preparation and molecular biology workflows. It is used across academic and industrial research.

We offer Sodium bisulphite ACS reagent in 100 g, 500 g, 1 kg and 5 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Buffer preparation
Molecular biology workflows

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sodium bisulphite ACS reagent
Catalogue No.	VQ-014120
CAS Number	7631-90-5
IUPAC name	sodium hydrogen sulfite
Molecular formula	HNaO₃S
Molecular weight	104.06 g/mol
Exact mass	103.9544
Grade	ACS
Purity / assay	≥58.5%
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
Density	1.48 g/cm3
H-bond donors / acceptors	1 / 4
TPSA	79.6 Å²
UN number	UN 2693
Synonyms	sodium hydrogensulfite, Sodium bisulphite, 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)

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

Synthesis

Sodium Bisulphite Solution In Water 39%, for synthesis

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

VQ-046540

AR

Sodium bisulphite, GR

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

VQ-014121

Frequently asked questions

What is the CAS number of Sodium bisulphite ACS reagent?

The CAS Registry Number of Sodium bisulphite ACS reagent is 7631-90-5. It is also known as sodium hydrogensulfite, Sodium bisulphite, Monosodium sulfite.

What is the molecular formula and molecular weight of Sodium bisulphite ACS reagent?

Sodium bisulphite ACS reagent 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 ACS reagent can I order?

We supply Sodium bisulphite ACS reagent in ACS (≥58.5%) grade, in 100 g, 500 g, 1 kg, 5 kg, 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sodium bisulphite ACS reagent?

Yes. Every lot of Sodium bisulphite ACS reagent 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 ACS reagent be shipped internationally?

Yes. Sodium bisulphite ACS reagent 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.