Potassium thiosulphate

Name: Potassium thiosulphate
Brand: Vaqora Chemicals
SKU: VQ-014082

About Potassium thiosulphate

Vaqora Chemicals supplies Potassium thiosulphate (Practical grade), an alkali metal compound registered under CAS number 10294-66-3 at a purity of 95%. Its molecular formula is K2O3S2 and its molecular weight is 190.33 g/mol. Its systematic (IUPAC) name is dipotassium. Dioxido-oxo-sulfanylidene-lambda6-sulfane. Alternative names: Potassium thiosulfate and Thiosulfuric acid (H2S2O3), dipotassium salt.

The material typically appears as white to colourless powder to beads. Store in a tightly closed container in a cool, dry and well-ventilated place. It carries the GHS signal word “Warning” with 2 hazard statements. Review the Safety Data Sheet before use.

Key uses span materials research and chemical synthesis. Typical end-use sectors are academic and industrial research.

Vaqora Chemicals supplies Potassium thiosulphate in 100 g, 500 g and 1 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Materials research
Chemical synthesis

Industries

Specifications & identifiers

Chemical identifiers
Product name	Potassium thiosulphate
Catalogue No.	VQ-014082
CAS Number	10294-66-3
IUPAC name	dipotassium;dioxido-oxo-sulfanylidene-lambda6-sulfane
Molecular formula	K₂O₃S₂
Molecular weight	190.33 g/mol
Exact mass	189.8563
Grade	Practical
Purity / assay	95%
HSN code	28429090
InChIKey	FGRVOLIFQGXPCT-UHFFFAOYSA-L
SMILES	[O-]S(=O)(=S)[O-].[K+].[K+]
PubChem CID	61501

Physical properties
Physical form	Granules
Appearance	White to colourless powder to beads
H-bond donors / acceptors	0 / 4
TPSA	104 Å²
Synonyms	Potassium thiosulfate, Thiosulfuric acid (H2S2O3), dipotassium salt, Potassium Hyposulfite, Thiosulfuric Acid, Dipotassium Salt, potassium sulfothioate, Dipotassium sulfurothioate, K2O3S2, Thiosulfuric acid (H2S2O3), potassium salt (1:2)

Safety & hazard information (GHS)

Harmful / irritant

Signal word: Warning

Hazard statements

H315Causes skin irritation
H319Causes serious eye irritation

Precautionary statements: P264, P264 + P265, P280, P302 + P352, P305 + P351 + P338, P321, P332 + P317, P337 + P317, P362 + P364

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 10294-66-3

Potassium thiosulphate, 75% solution

CAS: 10294-66-3
Formula: K₂O₃S₂
MW: 190.33 g/mol

VQ-003633

Frequently asked questions

What is the CAS number of Potassium thiosulphate?

The CAS Registry Number of Potassium thiosulphate is 10294-66-3. It is also known as Potassium thiosulfate, Thiosulfuric acid (H2S2O3), dipotassium salt, Potassium Hyposulfite.

What is the molecular formula and molecular weight of Potassium thiosulphate?

Potassium thiosulphate has the molecular formula K2O3S2 and a molecular weight of 190.33 g/mol.

Which grade and pack sizes of Potassium thiosulphate can I order?

We supply Potassium thiosulphate in Practical (95%) grade, in 100 g, 500 g, 1 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Potassium thiosulphate?

Yes. Every lot of Potassium thiosulphate 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 Potassium thiosulphate be shipped internationally?

Yes. Potassium thiosulphate 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.