Ammonium bromide (NH4Br)-Powder introduce:
Ammonium bromide, NH4Br, is the ammonium salt of hydrobromic acid. The chemical crystallizes in colorless prisms, possessing a saline taste; it sublimes on heating and is easily soluble in water. On exposure to air it gradually assumes a yellow color because of the oxidation of traces of bromide (Br−) to bromine (Br2).
Molar mass：97.94 g/mol
Appearance：white powder, hygroscopic
Melting point：235 °C (455 °F; 508 K)
Boiling point：452 °C (846 °F; 725 K)
Solubility in water：60.6 g/100 mL (0 °C)；78.3 g/100 mL (25 °C)；145 g/100 mL (100 °C)
Magnetic susceptibility (χ)：−47.0•10−6 cm3/mol
Refractive index (nD)：1.712
Ammonium bromide is used in pharmaceuticals for its bromide ion. It is used for a variety of analytical chemistry applications. It is also used for photography in films, plates and papers; in fireproofing of wood; in lithography and process engraving and as corrosion inhibitors.
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