Sodium sulphite anhydrous, EP

Name: Sodium sulphite anhydrous, EP
Brand: Vaqora Chemicals
SKU: VQ-047267

About Sodium sulphite anhydrous, EP

Sodium sulphite anhydrous is an alkali metal compound (EP grade) carrying the CAS registry number 7757-83-7. Its molecular formula is Na2O3S and its molecular weight is 126.05 g/mol. Alternative names: Disodium sulfite and Sodium sulfite anhydrous.

Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 4 hazard statements. Review the Safety Data Sheet before use.

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

Standard pack sizes are 500 g, 1 kg, 5 kg and 50 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. Larger quantities and custom packaging are available. Request a quote for pricing and lead time.

Typical applications

Materials research
Chemical synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sodium sulphite anhydrous, EP
Catalogue No.	VQ-047267
CAS Number	7757-83-7
IUPAC name	disodium;sulfite
Molecular formula	Na₂O₃S
Molecular weight	126.05 g/mol
Exact mass	125.9364
Grade	EP
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, Sodium sulphite, Sulfurous acid, disodium salt, Natrium sulfurosum, S-WAT, Natrii sulphis, Anhydrous sodium sulfite, Sodium sulfite (Na2SO3), Exsiccated sodium sulfite, Natrum sulphurosum, 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

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

BP

Sodium sulphite, BP 95.0%

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

VQ-047036

Frequently asked questions

What is the CAS number of Sodium sulphite anhydrous, EP?

The CAS Registry Number of Sodium sulphite anhydrous, EP is 7757-83-7. It is also known as Disodium sulfite, Sodium sulfite anhydrous, Sodium sulphite.

What is the molecular formula and molecular weight of Sodium sulphite anhydrous, EP?

Sodium sulphite anhydrous, EP has the molecular formula Na2O3S and a molecular weight of 126.05 g/mol.

Which grade and pack sizes of Sodium sulphite anhydrous, EP can I order?

We supply Sodium sulphite anhydrous, EP in EP grade, in 500 g, 1 kg, 5 kg, 50 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sodium sulphite anhydrous, EP?

Yes. Every lot of Sodium sulphite anhydrous, EP 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 anhydrous, EP be shipped internationally?

Yes. Sodium sulphite anhydrous, EP 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.