Sodium sulphite, anhydrous, 98%

Name: Sodium sulphite, anhydrous, 98%
Brand: Vaqora Chemicals
SKU: VQ-014239

About Sodium sulphite, anhydrous, 98%

Listed under CAS 7757-83-7, Sodium sulphite is an alkali metal compound available from Vaqora Chemicals (Extra Pure grade) with a typical assay of 98%. Formula Na2O3S, molecular weight 126.05 g/mol. Systematically, it is named disodium. Sulfite. It is also known as Hypo clear(photography) or Disodium sulfite.

In its supplied form it is white powder to crystals. Store sealed in a dry, well-ventilated location away from incompatible materials. Under GHS it is labelled “Danger”, so handle it with suitable PPE and consult the SDS.

It is commonly used for pharmaceutical synthesis, fine chemical synthesis, food and flavour applications and textile processing. Our customers for this product work in academic and industrial research.

Vaqora Chemicals supplies Sodium sulphite in 500 g, 1 kg, 5 kg and 25 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Pharmaceutical synthesis
Fine chemical synthesis
Food & flavour applications
Textile processing

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sodium sulphite, anhydrous, 98%
Catalogue No.	VQ-014239
CAS Number	7757-83-7
IUPAC name	disodium;sulfite
Molecular formula	Na₂O₃S
Molecular weight	126.05 g/mol
Exact mass	125.9364
Grade	Extra Pure
Purity / assay	98%
HSN code	28321090
InChIKey	GEHJYWRUCIMESM-UHFFFAOYSA-L
SMILES	[O-]S(=O)[O-].[Na+].[Na+]
PubChem CID	24437

Physical properties
Physical form	Crystalline
Appearance	White powder to crystals
H-bond donors / acceptors	0 / 4
TPSA	82.4 Å²
Synonyms	Hypo clear(photography), 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

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

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, 98%?

The CAS Registry Number of Sodium sulphite, anhydrous, 98% is 7757-83-7. It is also known as Hypo clear(photography), Disodium sulfite, Sodium sulfite anhydrous.

What is the molecular formula and molecular weight of Sodium sulphite, anhydrous, 98%?

Sodium sulphite, anhydrous, 98% has the molecular formula Na2O3S and a molecular weight of 126.05 g/mol.

Which grade and pack sizes of Sodium sulphite, anhydrous, 98% can I order?

We supply Sodium sulphite, anhydrous, 98% in Extra Pure (98%) grade, in 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 sulphite, anhydrous, 98%?

Yes. Every lot of Sodium sulphite, anhydrous, 98% 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, 98% be shipped internationally?

Yes. Sodium sulphite, anhydrous, 98% 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.