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Names | |||
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Other names | |||
Identifiers | |||
3D model (JSmol)
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ChemSpider | |||
ECHA InfoCard | 100.029.160 | ||
UNII | |||
CompTox Dashboard (EPA)
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Properties | |||
AgBr | |||
Molar mass | 187.77 g/mol | ||
Appearance | Pale yellow solid photosensitive | ||
Density | 6.473 g/cm3, solid | ||
Melting point | 432 °C (810 °F; 705 K) | ||
Boiling point | 1,502 °C (2,736 °F; 1,775 K) (decomposes) | ||
0.140 mg/L (20 °C) | |||
Solubility product (Ksp)
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5.4 × 10 −13 | ||
Solubility | insoluble in alcohol, most acids sparingly soluble in ammonia soluble in alkali cyanide solutions | ||
Band gap | 2.5 eV | ||
Electron mobility | 4000 cm2/(V·s) | ||
−59.7·10−6 cm3/mol | |||
Refractive index (nD)
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2.253 | ||
Thermochemistry | |||
Heat capacity (C)
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270 J/(kg·K) | ||
Std molar
entropy (S⦵298) |
107 J·mol−1·K−1[1] | ||
Std enthalpy of
formation (ΔfH⦵298) |
−100 kJ·mol−1[1] | ||
Hazards | |||
NFPA 704 (fire diamond) | |||
Related compounds | |||
Other anions
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Silver(I) fluoride Silver chloride Silver iodide | ||
Other cations
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Copper(I) bromide Mercury(I) bromide | ||
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Silver bromide (AgBr), a soft, pale-yellow, water-insoluble salt well known (along with other silver halides) for its unusual sensitivity to light. This property has allowed silver halides to become the basis of modern photographic materials.[2] AgBr is widely used in photographic films and is believed by some to have been used for making the Shroud of Turin.[3] The salt can be found naturally as the mineral bromargyrite (bromyrite).
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