Sodium Hydrosulphite (Sodium Dithionite)

Name: Sodium Hydrosulphite (Sodium Dithionite)
Brand: Vaqora Chemicals
SKU: VQ-019455

About Sodium Hydrosulphite (Sodium Dithionite)

Sodium Hydrosulphite (Sodium Dithionite) is an industrial acid / alkali (Industrial grade) carrying the CAS registry number 7775-14-6, specified at above 99% purity. Formula Na2O4S2, molecular weight 174.11 g/mol. It is also known as Sodium dithionite or Sodium hydrosulphite.

It is supplied as a powder. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Danger” with 2 hazard statements. Review the Safety Data Sheet before use.

It is commonly used for pH adjustment, chemical processing and metal treatment and cleaning. Typical end-use sectors are water treatment, metallurgy and mining and textiles and dyeing.

Available in 25 kg, 50 kg, 200 kg drum and 1 MT packs, Sodium Hydrosulphite (Sodium Dithionite) is dispatched with a Certificate of Analysis (COA) to destinations worldwide.

Typical applications

pH adjustment
Chemical processing
Metal treatment & cleaning

Industries

Specifications & identifiers

Chemical identifiers
Product name	Sodium Hydrosulphite (Sodium Dithionite)
Catalogue No.	VQ-019455
CAS Number	7775-14-6
Molecular formula	Na₂O₄S₂
Molecular weight	174.11 g/mol
Exact mass	173.9033
Grade	Industrial
Purity / assay	>99%
InChIKey	JVBXVOWTABLYPX-UHFFFAOYSA-L
SMILES	[O-]S(=O)S(=O)[O-].[Na+].[Na+]
PubChem CID	24489

Physical properties
Physical form	Powder
Appearance	Powder
H-bond donors / acceptors	0 / 6
TPSA	119 Å²
Synonyms	Sodium dithionite, Sodium hydrosulphite, Vatrolite, Sodium sulfoxylate, Disodium dithionite, Dithionous acid, disodium salt, Burmol, Blankit IN, V-Brite B, Hydrosulfite R Conc, Disodium hydrosulfite, Sodium hydrosulfite (Na2S2O4)

Safety & hazard information (GHS)

Flammable

Harmful / irritant

Signal word: Danger

Hazard statements

H251Self-heating, may catch fire
H302Harmful if swallowed

Precautionary statements: P235, P264, P270, P280, P301 + P317, P330, P407, P410, P413, P420, 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 7775-14-6

Sodium dithionite

CAS: 7775-14-6
Formula: Na₂O₄S₂
MW: 174.11 g/mol

VQ-000970

AR

Sodium Hydrosulphite, AR ≥87.0%

CAS: 7775-14-6
Formula: Na₂O₄S₂
MW: 174.11 g/mol

VQ-046928

Frequently asked questions

What is the CAS number of Sodium Hydrosulphite (Sodium Dithionite)?

The CAS Registry Number of Sodium Hydrosulphite (Sodium Dithionite) is 7775-14-6. It is also known as Sodium dithionite, Sodium hydrosulphite, Vatrolite.

What is the molecular formula and molecular weight of Sodium Hydrosulphite (Sodium Dithionite)?

Sodium Hydrosulphite (Sodium Dithionite) has the molecular formula Na2O4S2 and a molecular weight of 174.11 g/mol.

Which grade and pack sizes of Sodium Hydrosulphite (Sodium Dithionite) can I order?

We supply Sodium Hydrosulphite (Sodium Dithionite) in Industrial (>99%) grade, in 25 kg, 50 kg, 200 kg drum, 1 MT packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Sodium Hydrosulphite (Sodium Dithionite)?

Yes. Every lot of Sodium Hydrosulphite (Sodium Dithionite) 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 Hydrosulphite (Sodium Dithionite) be shipped internationally?

Yes. Sodium Hydrosulphite (Sodium Dithionite) 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.