Difference between revisions of "Ammonium sulfide"
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diammonium sulfide; aqueous ammonium sulfide | diammonium sulfide; aqueous ammonium sulfide | ||
| − | == | + | == Risks == |
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| + | * Evolves hydrogen sulfide on contact with acids. | ||
| + | * Strongly irritating to skin and membranes. | ||
| + | * Flammable. Flash point = 22 C | ||
| + | * Fisher Scientific: [https://www.fishersci.com/store/msds?partNumber=A705225&productDescription=AMMON+SULFIDE+SOLUTION+225ML&vendorId=VN00033897&countryCode=US&language=en SDS] | ||
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| + | == Physical and Chemical Properties == | ||
Soluble in water. pH = 9.5 | Soluble in water. pH = 9.5 | ||
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| − | == | + | ==Resources and Citations== |
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* Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | * Richard S. Lewis, ''Hawley's Condensed Chemical Dictionary'', Van Nostrand Reinhold, New York, 10th ed., 1993 | ||
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* ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 591 | * ''The Merck Index'', Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 591 | ||
| − | * Wikipedia | + | * Wikipedia: http://en.wikipedia.org/wiki/Ammonium_sulfide (Accessed Mar. 20, 2006) |
[[Category:Materials database]] | [[Category:Materials database]] | ||
Latest revision as of 14:39, 26 April 2022
Description
Yellow crystals that are unstable at room temperature or in the presence of moisture. Ammonium sulfide is sold commercially as a liquid that is primarily composed of ammonium bisulfide, NH4HS. Ammonium sulfide is used in photographic developers, in the manufacture of textiles, and to produce a dark patina on brasses and bronzes.
Synonyms and Related Terms
diammonium sulfide; aqueous ammonium sulfide
Risks
- Evolves hydrogen sulfide on contact with acids.
- Strongly irritating to skin and membranes.
- Flammable. Flash point = 22 C
- Fisher Scientific: SDS
Physical and Chemical Properties
Soluble in water. pH = 9.5
Smells of ammonia and rotten eggs.
| Composition | (NH4)2S |
|---|---|
| CAS | 12135-76-1 |
| Molecular Weight | mol. wt. = 68.15 |
Resources and Citations
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Michael McCann, Artist Beware, Watson-Guptill Publications, New York City, 1979
- The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 591
- Wikipedia: http://en.wikipedia.org/wiki/Ammonium_sulfide (Accessed Mar. 20, 2006)