Sodium sulphite, BP 95.0%

Name: Sodium sulphite, BP 95.0%
Brand: Vaqora Chemicals
SKU: VQ-047036

About Sodium sulphite, BP 95.0%

Sodium sulphite is an alkali metal compound in BP grade carrying the CAS registry number 7757-83-7 with a typical assay of 95.0%. Its molecular formula is Na2O3S and its molecular weight is 126.05 g/mol. Alternative names: Disodium sulfite and Sodium sulfite anhydrous.

Store in a tightly closed container in a cool, dry and well-ventilated place. The GHS classification uses the signal word “Danger”, so appropriate gloves, eye protection and ventilation are recommended.

Typical applications include materials research and chemical synthesis. Typical end-use sectors are academic and industrial research.

Standard pack sizes are 500 g, 1 kg, 5 kg and 25 kg, and every batch ships with a Certificate of Analysis (COA) and we export worldwide. SDS and detailed specification sheets can be requested with your quotation.

Typical applications

Materials research
Chemical synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sodium sulphite, BP 95.0%
Catalogue No.	VQ-047036
CAS Number	7757-83-7
IUPAC name	disodium;sulfite
Molecular formula	Na₂O₃S
Molecular weight	126.05 g/mol
Exact mass	125.9364
Grade	BP
Purity / assay	95.0%
HSN code	28321090
InChIKey	GEHJYWRUCIMESM-UHFFFAOYSA-L
SMILES	[O-]S(=O)[O-].[Na+].[Na+]
PubChem CID	24437

Physical properties
Physical form	Other
H-bond donors / acceptors	0 / 4
TPSA	82.4 Å²
Synonyms	Disodium sulfite, Sodium sulfite anhydrous, Sulfurous acid, disodium salt, Natrium sulfurosum, S-WAT, Natrii sulphis, Anhydrous sodium sulfite, Sodium sulfite (Na2SO3), Exsiccated sodium sulfite, Natrum sulphurosum, Sodium sulphite anhydrous, Sulfurous acid, sodium salt (1:2)

Safety & hazard information (GHS)

Corrosive

Harmful / irritant

Signal word: Danger

Hazard statements

H302Harmful if swallowed
H314Causes severe skin burns and eye damage
H315Causes skin irritation
H319Causes serious eye irritation

Precautionary statements: P260, P264, P264 + P265, P270, P280, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P321, P330, P332 + P317, P337 + P317, P362 + P364, 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

Other grades of CAS 7757-83-7

ACS

Sodium sulphite ACS reagent, ≥99.5%

CAS: 7757-83-7
Formula: Na₂O₃S
MW: 126.05 g/mol

VQ-014238

EP

Sodium sulphite anhydrous, EP

CAS: 7757-83-7
Formula: Na₂O₃S
MW: 126.05 g/mol

VQ-047267

Extra Pure

Sodium sulphite, anhydrous, 98%

CAS: 7757-83-7
Formula: Na₂O₃S
MW: 126.05 g/mol

VQ-014239

AR

Sodium sulphite, anhydrous, GR 98%+

CAS: 7757-83-7
Formula: Na₂O₃S
MW: 126.05 g/mol

VQ-014240

Frequently asked questions

What is the CAS number of Sodium sulphite, BP 95.0%?

The CAS Registry Number of Sodium sulphite, BP 95.0% is 7757-83-7. It is also known as Disodium sulfite, Sodium sulfite anhydrous, Sulfurous acid, disodium salt.

What is the molecular formula and molecular weight of Sodium sulphite, BP 95.0%?

Sodium sulphite, BP 95.0% has the molecular formula Na2O3S and a molecular weight of 126.05 g/mol.

Which grade and pack sizes of Sodium sulphite, BP 95.0% can I order?

We supply Sodium sulphite, BP 95.0% in BP (95.0%) grade, in 500 g, 1 kg, 5 kg, 25 kg, 25 kg (1 x 25), 50 kg (5 x 10) packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sodium sulphite, BP 95.0%?

Yes. Every lot of Sodium sulphite, BP 95.0% 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 sulphite, BP 95.0% be shipped internationally?

Yes. Sodium sulphite, BP 95.0% is classified as hazardous, 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.