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Ammonium bromide, NH4Br, is the ammonium salt of hydrobromic acid.
A 2047 (OTTO) Ammonium bromide, GR 99.5% Cas 12124-97-9 - used for photography in films, plates and papers; in fireproofing of wood; in lithography and process engraving; in corrosion inhibitors; and in pharmaceutical preparations.