CAS 7783-18-8 Ammonium thiosulfate - Materials / Alfa Chemistry

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Ammonium thiosulfate

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Catalog Number

ACM7783188

Product Name

Ammonium thiosulfate

Structure

CAS

7783-18-8

Category

Electrolytes

Description

Ammonium thiosulfate is a white crystalline solid. It is very soluble in water. The primary hazard is the threat posed to the environment. Immediate steps should be taken to limit its spread to the environment. It is used in photography, in chemical analysis, and for many other uses.;Liquid

IUPAC Name

diazanium;dioxido-oxo-sulfanylidene-ж╦6-sulfane

Molecular Weight

148.21g/mol

Molecular Formula

H8N2O3S2

Canonical SMILES

[NH4+].[NH4+].[O-]S(=O)(=S)[O-]

InChI

InChI=1S/2H3N.H₂O3S2/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)

InChI Key

XYXNTHIYBIDHGM-UHFFFAOYSA-N

Boiling Point

Decomposes (NTP, 1992)

Melting Point

Decomposes at 302° F (NTP, 1992);150 °C (DECOMP)

Purity

98%

Density

2 at 68 °F (USCG, 1999);1.679

Solubility

64 % at 68° F (NTP, 1992);VERY SOL IN COLD WATER; IN 100 CC OF WATER: 103.3 G @ 100 °C; SLIGHTLY SOL IN ACETONE;INSOL IN ALCOHOL, ETHER

Appearance

Solid

Color/Form

COLORLESS, MONOCLINIC CRYSTALS;WHITE CRYSTALS

Complexity

82.6

Corrosivity

Copper-base alloys are seriously corroded by ... ammonium thiosulfate with corrosion rates exceeding 10 kg/(square meter year) at 100 °C.;High silicon cast iron has reasonable corrosion resistance /to ammonium thiosulfate/ with a corrosion rate < 4.4 kg/(square meter year) at 100 °C.;The corrosion rate for stainless steels /to ammonium thiosulfate/ is < 440 g/(square meter year) at 100 °C.

Covalently-Bonded Unit Count

EC Number

231-982-0

Exact Mass

147.997634g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

ammonium thiosulfate

Monoisotopic Mass

147.997634g/mol

Odor