Sodium thiosulphate, anhydrous, GR 98%

Name: Sodium thiosulphate, anhydrous, GR 98%
Brand: Vaqora Chemicals
SKU: VQ-014250

About Sodium thiosulphate, anhydrous, GR 98%

Sodium thiosulphate is an alkali metal compound in AR grade carrying the CAS registry number 7772-98-7 with a typical assay of 97%. With the molecular formula Na2O3S2, it has a molar mass of 158.11 g/mol. Its systematic (IUPAC) name is disodium. Dioxido-oxo-sulfanylidene-lambda6-sulfane. It is also known as Sodium Hyposulfite or Disodium thiosulfate.

In its supplied form it is a white powder. Literature values give a melting point of 52 °C (dec.) and a density of 1.667 g/cm3 at 20 °C. Keep the container tightly sealed and store it in a cool, dry area. Handle it with standard laboratory precautions and appropriate personal protective equipment.

It is commonly used for materials research and chemical synthesis. Our customers for this product work in academic and industrial research.

Vaqora Chemicals supplies Sodium thiosulphate in 1 kg, 5 kg and 4 x 25 kg packs, each shipped with a Certificate of Analysis (COA), and exports worldwide.

Typical applications

Materials research
Chemical synthesis

Industries

Grade guides

Specifications & identifiers

Chemical identifiers
Product name	Sodium thiosulphate, anhydrous, GR 98%
Catalogue No.	VQ-014250
CAS Number	7772-98-7
IUPAC name	disodium;dioxido-oxo-sulfanylidene-lambda6-sulfane
Molecular formula	Na₂O₃S₂
Molecular weight	158.11 g/mol
Exact mass	157.9084
Grade	AR
Purity / assay	97%
HSN code	28323010
InChIKey	AKHNMLFCWUSKQB-UHFFFAOYSA-L
SMILES	[O-]S(=O)(=S)[O-].[Na+].[Na+]
PubChem CID	24477

Physical properties
Physical form	Powder
Appearance	White powder
Melting point	52 °C (dec.)
Density	1.667 g/cm3 at 20 °C
H-bond donors / acceptors	0 / 4
TPSA	104 Å²
Synonyms	Sodium Hyposulfite, Disodium thiosulfate, Chlorine Control, Chlorine Cure, Sodium thiosulfate, anhydrous, Thiosulfuric acid, disodium salt, Sodium thiosulfate (Na2S2O3), Sodium thiosulphate (Na2S2O3), Sodium oxide sulfide (Na2S2O3), Thiosulfuric acid (H2S2O3), disodium salt, Ins no.539, Ins-539

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 7772-98-7

USP

Sodium thiosulfate 0.1 N volumetric solution as per, USP

CAS: 7772-98-7
Formula: Na₂O₃S₂
MW: 158.11 g/mol

VQ-047270

Sodium thiosulphate 0.01 mol/L (0.01 N) for 500 mL solution

CAS: 7772-98-7
Formula: Na₂O₃S₂
MW: 158.11 g/mol

VQ-045769

Molecular Biology

Sodium thiosulphate anhydrous, for molecular biology

CAS: 7772-98-7
Formula: Na₂O₃S₂
MW: 158.11 g/mol

VQ-046639

Synthesis

Sodium thiosulphate, anhydrous, 97%

CAS: 7772-98-7
Formula: Na₂O₃S₂
MW: 158.11 g/mol

VQ-014249

Frequently asked questions

What is the CAS number of Sodium thiosulphate, anhydrous, GR 98%?

The CAS Registry Number of Sodium thiosulphate, anhydrous, GR 98% is 7772-98-7. It is also known as Sodium Hyposulfite, Disodium thiosulfate, Chlorine Control.

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

Sodium thiosulphate, anhydrous, GR 98% has the molecular formula Na2O3S2 and a molecular weight of 158.11 g/mol.

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

We supply Sodium thiosulphate, anhydrous, GR 98% in AR (97%) grade, in 1 kg, 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 thiosulphate, anhydrous, GR 98%?

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

Yes. We export Sodium thiosulphate, anhydrous, GR 98% worldwide by air and sea freight or express courier, on EXW, FOB, CIF, CFR or DAP Incoterms, with full export documentation.