Sci-Tech Dictionary:
(′sil·vər ′səl′fīd)
silver sulfide
(inorganic chemistry) Ag2S A dark, heavy powder, insoluble in water, soluble in concentrated sulfuric and nitric acids; melts at 825°C; used in ceramics and in inlay metalwork.
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Results for Silver sulfide
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On this page:
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Wikipedia:
Silver sulfide
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General |
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| Name | Silver sulfide |
| Chemical formula | Ag2S |
| Appearance | Black cubic crystal |
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Physical |
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| Molar mass | 247.8 g/mol |
| Melting point | 1098 K (825 °C) |
| Boiling point | ? K (-? °C) |
| Solubility | 8.5-15g in 1L water |
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Thermochemistry |
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| ΔfH0gas | ? kJ/mol |
| ΔfH0liquid | ? kJ/mol |
| ΔfH0solid | -32.6 kJ/mol |
| S0gas, 1 bar | ? J/mol·K |
| S0liquid, 1 bar | ? J/mol·K |
| S0solid | 144.0 J/mol·K |
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Safety |
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| Ingestion | ? |
| Inhalation | May cause irritation |
| Skin | May cause irritation |
| Eyes | May cause irritation |
| More info | [1] |
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SI units were used where possible. Unless otherwise stated, standard conditions were used. Disclaimer and references |
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Silver sulfide (or Silver sulphide in British English), Ag2S, is the sulfide of silver. It is black and constitutes the tarnish that forms on silver when exposed to the hydrogen sulfide of the atmosphere.
When formed on electrical contacts operating in an atmosphere rich in hydrogen sulfide, long filaments known as Silver Whiskers can form.
External links
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Copyrights:
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 | Sci-Tech Dictionary. McGraw-Hill Dictionary of Scientific and Technical Terms. Copyright © 2003, 1994, 1989, 1984, 1978, 1976, 1974 by McGraw-Hill Companies, Inc. All rights reserved. Read more |
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| Wikipedia. This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Silver sulfide". Read more |
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