336726
Ammonium thiosulfate
98%
Synonym(s):
Diammonium thiosulfate
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About This Item
Linear Formula:
(NH4)2S2O3
CAS Number:
Molecular Weight:
148.21
EC Number:
MDL number:
UNSPSC Code:
12352302
eCl@ss:
38030427
PubChem Substance ID:
NACRES:
NA.23
Assay:
98%
form:
crystals and lumps
solubility:
H2O: very soluble(lit.)
ethanol: insoluble(lit.)
ethanol: insoluble(lit.)
Recommended Products
Quality Level
Assay
98%
form
crystals and lumps
mp
150 °C (lit.)
solubility
H2O: very soluble(lit.)
ethanol: insoluble(lit.)
density
1.679 g/mL at 25 °C (lit.)
SMILES string
N.N.OS(O)(=O)=S
InChI
1S/2H3N.H2O3S2/c;;1-5(2,3)4/h2*1H3;(H2,1,2,3,4)
InChI key
XYXNTHIYBIDHGM-UHFFFAOYSA-N
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General description
Ammonium thiosulfate is a non-toxic inorganic compound that is majorly used as a fertilizer and can be used as an alternative to cyanide based leaching. It has a hygroscopic nature and is soluble in water. It can be produced by the reaction of ammonia, water, and sulfur dioxide. It can be used as a photographic fixing salt.
Application
Ammonium thiosulfide can be used as a source of sulfur for the formation of cadmium sulfide thin films for electronic applications. It can also be used in the treatment of copper-gold ores for the recovery of gold.
Storage Class Code
11 - Combustible Solids
WGK
WGK 1
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
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Electro-plating and characterisation of cadmium sulphide thin films using ammonium thiosulphate as the sulphur source
Abdul-Manaf NA, et al.
Journal of Materials Science: Materials in Electronics, 26(4), 2418-2429 (2015)
The treatment of copper-gold ores by ammonium thiosulfate leaching
Molleman E and Dreisinger D
Hydrometallurgy, 66(1-3), 1-21 (2002)
Sulfites, thiosulfates, and dithionites
Barbera JJ, et al.
Ullmann's Encyclopedia of Industrial Chemistry, 66(1-3), 1-21 (2000)
Jianxu Wang et al.
Journal of hazardous materials, 186(1), 119-127 (2010-12-03)
According to the 'hard and soft' acid-base principle, mercury is a 'soft metal' and will preferentially form soluble chemical complexes with sulphur-containing ligands. In this work mercury uptake by Chenopodium glaucum L. growing on mercury-contaminated soil was promoted using ammonium
Fabio N Moreno et al.
Environmental pollution (Barking, Essex : 1987), 136(2), 341-352 (2005-04-21)
Experiments were carried out in plant growth chambers and in the field to investigate plant-mercury accumulation and volatilisation in the presence of thiosulphate (S2O3)-containing solutions. Brassica juncea (Indian mustard) plants grown in Hg-contaminated Tui mine tailings (New Zealand) were enclosed
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