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CAS NUMBER: 12124-97-9
MOLECULAR FORMULA: NH4Br
MOLECULAR WEIGHT: 97.94
Ammonium bromide 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).
Ammonium bromide appears as white odorless crystals or granules that become yellow upon exposure to air. Sinks and mixes in water.
Ammonium bromide is an ammonium salt composed of ammonium and bromide ions in a 1:1 ratio.
Ammonium bromide is an ammonium salt and a bromide salt.
Ammonium Bromide is generally immediately available in most volumes.
High purity, submicron and nanopowder forms may be considered.
Ammonium Bromide is the ammonium salt of hydrobromic acid.
Ammonium bromide crystallizes into colorless prisms, possessing a saline taste.
Ammonium bromide sublimes on heating and is easily soluble in water.
On exposure to air Ammonium bromide gradually assumes a yellow color because of the oxidation of traces of bromide (Br–) to bromine (Br2).
Ammonium bromide is used for photography in films, plates and papers; in fireproofing of wood; in lithography and process engraving; in corrosion inhibitors; and in pharmaceutical preparations.
Ammonium Bromide is employed in the preparation of photographic emulsions and developers, in pharmaceutical preparations, as a wood preservative, for water treatment and as a flame-retardant additive.
Ammonium bromide is the ammonium salt of hydrobromic acid.
The chemical matures in prisms that are colorless, owning a salty taste.
Ammonium bromide sublimes when heated and is very easily soluble in the water.
On exposure to the air, Ammonium bromide slowly assumes a color because of the oxidation of traces of the bromide (Br−) to the bromine (Br2) and the color assumed by this is yellow.
In a simple language, the ammonium bromide is the odorless crystals that are white in color or the granules which turn into yellow color when exposed with air.
The ammonium bromide formula stays stable under the recommended storage conditions that have a set temperature according to the need of the ammonium bromide.
Ammonium bromide 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 Ammonium bromide gradually assumes a yellow color because of the oxidation of traces of bromide (Br⁻) to bromine (Br₂).
Ammonium bromide is soluble in water and alcohol and is not particularly hazardous under normal conditions.
USES OF AMMONIUM BROMIDE:
Ammonium bromide is used for photography in films, plates and papers; in fireproofing of wood; in lithography and process engraving; in corrosion inhibitors; and in pharmaceutical preparations.
Colorless crystals made by hydrobromic acid acting upon ammonium hydroxide followed by crystallization.
Soluble in ether, alcohol, and water, ammonium bromide was used as a halide in collodion formulas and as a restrainer in alkaline developers.
-Used for producing photographic film emulsion,development agent
-medicine; used as wood corrosion
-water treatment
-fire retardant
APPLICATION OF AMMONIUM BROMIDE:
Ammonium Bromide is used for photography in films, plates and papers; in fireproofing of wood; in lithography and process engraving; in corrosion inhibitors; and in pharmaceutical preparations.
Ammonium Bromide used in combination with an appropriate oxidizer is an efficient biocide, applied in various industrial water systems and waste water, to control bacteria, fungi and algae.
Ammonium Bromide is also used in combination with an appropriate oxidizer.
Ammonium bromide is an efficient biocide that is applied in various water systems in the industrial sector and wastewater to control bacteria, fungi, and the algae.
PROPERTIES OF AMMONIUM BROMIDE:
-vapor pressure: 1 mmHg ( 198.3 °C)
-assay: ≥99.99% trace metals basis
-form: powder and chunks
-impurities: ≤0.005% insolubles <100 ppm total metallic impurities
-ign. residue: ≤0.01%
-pH range: 4.5 - 6.0
-Boiling point: 396 °C/1 atm (lit.)
-Melting point: 452 °C (lit.)
-Density: 2.43 g/mL at 25 °C (lit.)
SPECIFICATIONS OF AMMONIUM BROMIDE:
-Appearance: White crystalline powder
-Assay (argentometric): Min 99.5%
-Insoluble matter (13.33% in water): Max 0.005%
-pH (5% solution in water; 25°C): 4.5-6.0
-Residue on ignition: Max 0.01%
-Bromate (BrO3): Max 0.002%
-Chloride (Cl): Max 0.2%
-Iodide (I): Max 0.005% (Passes ACS test)
-Sulphate (SO4): Max 0.005%
-Barium (Ba): Max 0.002%
-Iron (Fe): Max 0.0005%
-Heavy metal (as Pb): Max 0.0005%
CHARACTERISTICS OF AMMONIUM BROMIDE:
Some important details related to the ammonium bromide such as chemical formula, molecular weight, density, crystal structure, chemical names, boiling point, and melting point are :
The chemical formula of the ammonium bromide 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.
Similarly, some Chemical Names given to the ammonium bromide are Ammonii bromide, Ammonium bromatum, and the Ammonium bromide ((NH4)Br).
The Boiling point of the ammonium bromide is near about 452 °C whereas the melting point of the ammonium bromide is 235 °C.
SOLUBILITY OF AMMONIUM BROMIDE:
In water, the solubility of the ammonium bromide is 78.3 g/100 g water at 25 °C.
Ammonium bromide is soluble in acetone, ammonia, ether, in water, 97 g/100 cc at 25 °C, 145.6 g/100 cc at 100 °C; in alcohol, 10 g/100 cc at 78 °C.
Ammonium bromide is freely soluble in the methanol, ethanol, and acetone, slightly soluble in ether and practically insoluble in the ethyl acetate.
PREPARATION OF AMMONIUM BROMIDE:
Ammonium bromide can be prepared by the direct action of hydrogen bromide on ammonia.
Ammonium bromide can also be prepared by the reaction of ammonia with iron(II) bromide or iron(III) bromide, which may be obtained by passing aqueous bromine solution over iron filings.
The preparation of the Ammonium bromide can also be done by the process of reacting to the ammonia with iron (II) bromide or iron (III) bromide, which we can attain by passing the aqueous bromine solution over the iron filings.
REACTION OF AMMONIUM BROMIDE:
Ammonium bromide is a weak acid with a pKa of ~5 in water.
Ammonium bromide is an acid salt because the ammonium ion hydrolyzes slightly in water.
STORAGE OF AMMONIUM BROMIDE:
To be stored in cool dry place, no open air storage.
SYNONYM:
azanium;bromide
UNII-R0JB3224WS
NH4Br
R0JB3224WS
Nervine
Ammonii bromidum
Ammonium bromatum
MFCD00011419
Flamex PA; Flovan BU; Fuzzicide; Hydrobromic acid monoammoniate; Spectrum XD 3899
Hydrobromic acid monoammoniate
HSDB 207
EINECS 235-183-8
ACMC-20alt5
(NH4)Br
EC 235-183-8
