- Min.Order :1 Metric Ton
- Purity: 99.0% Pure
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- Application:Cas No. 21548-73-2
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Superiority:
Inorganic substance with the chemical formula Ag2S belonging to the class of binary compounds.
Can also be regarded as a salt of silver, and hydrogen sulphide. Occurs in nature as the mineral argentite or acanthite. At temperatures below 179C, the orthorhombic (or monoclinic) black (or dark gray), prisms (density 7.326 g/cm3), which corresponds to the natural acanthite. And at a temperature above 179C - the black (or dark gray) cubic crystals (density of 7.317 g/cm3), which corresponds to natural argentite. m.p. = 827 ° C. Slightly soluble in water OL (Ag2S) = 4,2.10-50 (t = 25oC) ammonia, alkali metal thiosulfate. Dissolved in nitric acid and alkali metal cyanide solutions. Can be prepared by reaction of silver and its compounds with sulfur, hydrogen sulfide or sulfide.
Physico-chemical data of Silver sulphide (CAS 21548-73-2):
|
MV |
247.8 |
|
t pl |
825 ° C. |
Details:
|
Specification |
Pure |
|
Assay |
≥ 99,0% |
|
Assay (Ag) |
≥ 86,2% |
|
Nitrates (NO 3 ) |
≤ 0,005% |
|
Sulphates (SO 4 ) |
≤ 0,05% |
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