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
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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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