Ammonium bromide

Ammonium bromide
ball-and-stick model of an ammonium cation (left) and a bromide anion (right)
Names
IUPAC name
Ammonium bromide
Identifiers
3D model (JSmol)
ChEBI
ChemSpider
ECHA InfoCard 100.031.973 Edit this at Wikidata
EC Number
  • 235-183-8
RTECS number
  • BO9155000liugoiugiu
UNII
  • InChI=1S/BrH.H3N/h1H;1H3 checkY
    Key: SWLVFNYSXGMGBS-UHFFFAOYSA-N checkY
  • InChI=1/BrH.H3N/h1H;1H3
    Key: SWLVFNYSXGMGBS-UHFFFAOYAP
  • [Br-].[NH4+]
Properties
NH4Br
Molar mass 97.94 g/mol
Appearance white powder, hygroscopic
Density 2.429 g/cm3
Melting point 235 °C (455 °F; 508 K)
Boiling point 452 °C (846 °F; 725 K)
60.6 g/100 mL (0 °C)
78.3 g/100 mL (25 °C)
145 g/100 mL (100 °C)
−47.0×10−6 cm3/mol
1.712
Structure
Isometric
Hazards
GHS labelling:
GHS07: Exclamation mark[1]
Warning
H315, H319, H335[1]
P261, P264, P271, P280, P302+P352, P304+P340, P305+P351+P338, P312, P321, P332+P313, P337+P313, P362, P403+P233, P405, P501
NFPA 704 (fire diamond)
NFPA 704 four-colored diamondHealth 2: Intense or continued but not chronic exposure could cause temporary incapacitation or possible residual injury. E.g. chloroformFlammability 0: Will not burn. E.g. waterInstability 0: Normally stable, even under fire exposure conditions, and is not reactive with water. E.g. liquid nitrogenSpecial hazards (white): no code
2
0
0
Related compounds
Other anions
 Ammonium fluoride
Ammonium chloride
Ammonium iodide
Other cations
 Sodium bromide
Potassium bromide
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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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).

  1. ^ a b Sigma-Aldrich Co., Ammonium bromide.