五水硫代硫酸钠

Description

Sodium thiosulfate pentahydrate · CAS 10102-17-7 · H10Na2O8S2. UNII HX1032V43M. Melting Point: 48 °C; Density: 1.69 @25 °C.

Identification

CAS Registry Number	10102-17-7
PubChem CID	61475
Molecular formula	H10Na2O8S2
IUPAC name	disodium;dioxido-oxo-sulfanylidene-λ6-sulfane;pentahydrate
UNII (FDA)	HX1032V43M

Computed Descriptors

Molecular Weight	248.19
Hydrogen Bond Donor Count	5
Hydrogen Bond Acceptor Count	9
Rotatable Bond Count	0
Exact Mass	247.96124818
Monoisotopic Mass	247.96124818
Topological Polar Surface Area	109
Heavy Atom Count	12
Formal Charge	0
Complexity	82.6

Physical & Chemical Properties

Melting Point	48 °C
Density	1.69 @25 °C

Physical description & handling notes

• Large Crystals; Dry Powder; Other Solid
• Odorless solid; Deliquesces slightly in moist air; [Merck Index] Colorless odorless crystalline solid; [Sigma-Aldrich MSDS]

Regulatory Status

GHS notification summary	98.6% (277 / 281)

GHS Hazard Classification

GHS notification summary	98.6% (277 / 281)

Documented Uses

• Pulp and Paper Processing [Category: Industry]
• Leather Tanning and Processing [Category: Industry]
• Photographic Processing [Category: Other]
• Textiles (Printing, Dyeing, or Finishing) [Category: Industry]
• Metal Extraction and Refining [Category: Industry]
• EPA Safer Chemical Functional Use Classes -> Processing Aids and Additives

Synonyms

SODIUM THIOSULFATE PENTAHYDRATE; 10102-17-7; Disodium thiosulfate pentahydrate; Sodium thiosulfate, pentahydrate; Thiosulfuric acid (H2S2O3), disodium salt, pentahydrate; DTXSID6044197; CHEBI:32150; Antichlor; RefChem:931939; DTXCID4024197; pentahydrate of sodium thiosulfate; 600-156-5; sodium thiosulphate pentahydrate; MFCD00149186; Na2S2O3.5H2O; disodium;dioxido-oxo-sulfanylidene-lambda6-sulfane;pentahydrate

Frequently Asked Questions

What are the CAS number and molecular formula of Sodium thiosulfate pentahydrate?

CAS 10102-17-7; molecular formula H10Na2O8S2; molecular weight — g/mol.

What other names is Sodium thiosulfate pentahydrate known by?

SODIUM THIOSULFATE PENTAHYDRATE, 10102-17-7, Disodium thiosulfate pentahydrate, Sodium thiosulfate, pentahydrate, Thiosulfuric acid (H2S2O3), disodium salt, pentahydrate, DTXSID6044197.

Is Sodium thiosulfate pentahydrate classified as hazardous?

98.6% of GHS notifications report no hazard classification (277 of 281).

What are the key physical properties of Sodium thiosulfate pentahydrate?

Melting Point: 48 °C; Density: 1.69 @25 °C.

Facts on this page are taken from PubChem (US National Library of Medicine) and Wikidata. Grade-specific data — assay, moisture, particle size, packaging, shelf life — is issued per batch on the COA and is not published here.