Sodium sulphite ACS reagent, ≥99.5%

Name: Sodium sulphite ACS reagent, ≥99.5%
Brand: Vaqora Chemicals
SKU: VQ-014238

About Sodium sulphite ACS reagent, ≥99.5%

Listed under CAS 7757-83-7, Sodium sulphite ACS reagent is an alkali metal compound available from Vaqora Chemicals (ACS grade) with a typical assay of ≥99.5%. With the molecular formula Na2O3S, it has a molar mass of 126.05 g/mol. The IUPAC name is disodium. Sulfite. It is also known as Disodium sulfite or Sodium sulfite anhydrous.

In its supplied form it is white powder or 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 dyes and pigments manufacture and materials research. Our customers for this product work in academic and industrial research.

Vaqora Chemicals supplies Sodium sulphite ACS reagent in 500 g, 2.5 kg and 4 x 25 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Dyes & pigments manufacture
Materials research

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sodium sulphite ACS reagent, ≥99.5%
Catalogue No.	VQ-014238
CAS Number	7757-83-7
IUPAC name	disodium;sulfite
Molecular formula	Na₂O₃S
Molecular weight	126.05 g/mol
Exact mass	125.9364
Grade	ACS
Purity / assay	≥99.5%
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 or crystals
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, 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

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

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 ACS reagent, ≥99.5%?

The CAS Registry Number of Sodium sulphite ACS reagent, ≥99.5% 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 ACS reagent, ≥99.5%?

Sodium sulphite ACS reagent, ≥99.5% has the molecular formula Na2O3S and a molecular weight of 126.05 g/mol.

Which grade and pack sizes of Sodium sulphite ACS reagent, ≥99.5% can I order?

We supply Sodium sulphite ACS reagent, ≥99.5% in ACS (≥99.5%) grade, in 500 g, 2.5 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 sulphite ACS reagent, ≥99.5%?

Yes. Every lot of Sodium sulphite ACS reagent, ≥99.5% 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 ACS reagent, ≥99.5% be shipped internationally?

Yes. Sodium sulphite ACS reagent, ≥99.5% 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.