Ammonium bromide, NH 4 Br, 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 bromide (Br −) to bromine (Br 2).

2015年5月21日 · For ammonium bromide, another method involving reaction of an aqueous bromine solution and iron filings has been used. The solution of ferrous and ferric bromide thus formed then reacts with ammonia to precipitate hydrated oxides of iron. Ammonium bromide can be recovered by crystallization from the concentrated liquor.

The chemical formula of the ammonium bromide is NH4Br or it can also be called BrH4N. Further, the Molecular weight of the ammonium bromide is 97.943 g/mol. The density of the ammonium bromide is 2.429 g/cm3. The crystal structure of the ammonium bromide is Isometric.

How is Ammonium Bromide Prepared? The direct reaction method involves combining hydrogen bromide (HBr) and ammonia (NH 3). The chemical equation for this process is: HBr + NH 3 → NH 4 Br. This straightforward synthesis yields ammonium bromide, and the reaction can be represented visually through chemical diagrams.

Ammonium Bromide is odourless white crystals or granules which becomes yellow when exposed with air. Learn about the structural and chemical formula of colourless chemical compound Ammonium Bromide at BYJU'S.

Ammonium bromide ≥99.99% trace metals basis; CAS Number: 12124-97-9; EC Number: 235-183-8; Linear Formula: NH4Br at Sigma-Aldrich ... and adiabatic compressibilities at 298 K of the aqueous solutions of the cationic gemini surfactants propanediyl-alpha,omega-bis(octyldimethylammonium bromide) (8-3-8) and propanediyl-alpha,omega-bis ...

This monograph for Ammonium Bromide provides, in addition to common physical constants, a general description including typical appearance, applications, change in state (approximate), and aqueous solubility.

Ammonium bromide for analysis EMSURE® ACS; CAS Number: 12124-97-9; Synonyms: Ammonium bromide at Sigma-Aldrich. Skip to Content. CN EN. ... Ammonia solution 25%. Quick View. SAFC. 1.01142. Ammonium chloride. Quick View. Supelco. 69734. Multi Anion Standard 1 for IC. Quick View. Supelco. 91286. Multi Cation Standard 1 for IC.

In brief, cetyl trimethyl ammonium bromide solution is prepared in an organic solvent, to which an active ingredient and chitosan solution are added, followed by addition of cross-linking agent under agitation. The evaporation of organic solvent resulted into a …

Enthalpies of crystallization and dissolution of ammonium bromide in water at 298.15 k. Thermochimica Acta1987,113, 151-160. DOI: 10.1016/0040-6031 (87)88318-1. James J Bartel, Jane E Callanan, Edgar F Westrum. The heat capacity of NH4Br from 265 to 550 K the II-to-I transition. The Journal of Chemical Thermodynamics1980,12 (8) , 753-760.