Ammonium bromide
CAS 12124-97-9
EC 235-183-8
Formula BrH4N
MW 97.94 g/mol
Salts & Minerals Plastics & PolymersElectronicsPharmaceuticals & Healthcare Flame RetardancypH Regulation & Buffering
Description
Ammonium bromide (CAS 12124-97-9, EC 235-183-8, formula NH4Br) is an inorganic ammonium salt supplied as a white crystalline powder. It carries no assigned E-code and is referenced in trade and technical literature under designations including FR-11, Flovan BU, and Fuzzicide.
In flame retardancy, ammonium bromide releases hydrogen bromide gas during thermal decomposition, interrupting free-radical chain reactions in the combustion cycle. This mechanism makes it effective in polymer and textile formulations. In pharmaceutical and electronics manufacturing, it functions as a pH buffer, stabilising process solutions within defined acidic ranges.
Ammonium bromide is available in technical and pharmaceutical grades, with Ph.Eur.-compliant material suitable for regulated applications. It falls under REACH registration requirements for EU supply. Standard packaging includes multi-wall bags and fibre drums; bulk quantities are available subject to supplier confirmation. HS code 28275900 applies for import and customs classification.
In flame retardancy, ammonium bromide releases hydrogen bromide gas during thermal decomposition, interrupting free-radical chain reactions in the combustion cycle. This mechanism makes it effective in polymer and textile formulations. In pharmaceutical and electronics manufacturing, it functions as a pH buffer, stabilising process solutions within defined acidic ranges.
Ammonium bromide is available in technical and pharmaceutical grades, with Ph.Eur.-compliant material suitable for regulated applications. It falls under REACH registration requirements for EU supply. Standard packaging includes multi-wall bags and fibre drums; bulk quantities are available subject to supplier confirmation. HS code 28275900 applies for import and customs classification.
Physical Properties
| Melting Point | 235 °C |
| Boiling Point | 452 °C |
| Density | 2.429 g/cm³ @ Temp: 25 °C |
| Appearance | white crystals |
| Color | White |
| Odor | Odorless |
| Form | Powder/Solid |
| Water Solubility | 97 g/100 mL (25 ºC) |
| Vapor Pressure | 1 mm Hg ( 198.3 °C) |
| pH | 5.0-6.0 (25℃, 50mg/mL in H2O) |
| Log P | -1 at 25℃ |
Safety & Handling (Learn More)
Danger GHS07 GHS08 GHS09
H
H319H320H336H360H362H371H372H400H410
P
P203P260P261P263P264P270P271P273P280P318P319P391P405P501P264+P265P304+P340P308+P316P337+P317P403+P233P305+P351+P338
Trade & Regulatory
| HS Code | 28275900 |
| WGK (Germany) | 2 |
Other Names
azanium bromideNH4BrFR-11(NH4)BrFlamex PAFlovan BUFuzzicide
Related Products
Raw Materials
Derivatives
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