Ammonium bromide Chemical Properties

Melting point:

452 °C (lit.)

Boiling point:

396 °C/1 atm (lit.)

Density 

2.43 g/mL at 25 °C (lit.)

vapor pressure 

1 mm Hg ( 198.3 °C)

storage temp. 

Inert atmosphere,Room Temperature

solubility 

H₂O: 1 M at 20 °C, clear, colorless

form 

Powder/Solid

pka

-1.03±0.70(Predicted)

Specific Gravity

2.429

color 

White

PH

5.0-6.0 (25℃, 50mg/mL in H2O)

PH Range

4.5 - 6.0

Odor

Odorless

Water Solubility 

97 g/100 mL (25 ºC)

Sensitive 

Hygroscopic

Merck 

14,505

Dielectric constant

7.2（0.0℃）

Stability:

Stable. Incompatible with acids, bromine trifluoride, bromine trichloride, most common metals.

LogP

-1 at 25℃

CAS DataBase Reference

12124-97-9(CAS DataBase Reference)

NIST Chemistry Reference

Ammonium bromide(12124-97-9)

EPA Substance Registry System

Ammonium bromide (12124-97-9)

Safety Information

Hazard Codes 

Xn,Xi

Risk Statements 

22-36/37/38-36

Safety Statements 

22-24/25

WGK Germany 

2

RTECS 

BO9155000

TSCA 

Yes

HS Code 

28275900

Hazardous Substances Data

12124-97-9(Hazardous Substances Data)

Toxicity

LD50 orally in Rabbit: 2714 mg/kg

MSDS

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Ammonium bromide Usage And Synthesis

Description

Ammonium bromide is soluble in water and alcohol and is not particularly hazardous under normal conditions.

Chemical Properties

white crystals

Physical properties

Colorless rhombic crystal; odor of ammonia; sublimes at 60°C; very soluble in cold water; decomposes in hot water; slightly soluble in alcohol; insoluble in acetone.

Uses

A chemical used for its bromide ion

Uses

manufacture of photographic films, plates, and papers; in process engraving and lithography; fireproofing of wood; in corrosion inhibitors.

Uses

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.

Definition

ChEBI: An ammonium salt composed of ammonium and bromide ions in a 1:1 ratio.

General Description

White odorless crystals or granules that become yellow upon exposure to air. Sinks and mixes in water.

Air & Water Reactions

Water soluble

Reactivity Profile

Bromine trifluoride reacts explosively with the following Ammonium bromide, ammonium chloride, ammonium iodide [Mellor 2 Supp. 1:165 1956].

Health Hazard

INHALATION: Dust irritating - disturbed behavior, sedation. EYES: Slight irritation. SKIN: Slight irritation only with repeated or prolonged contact. INGESTION: Weakness, nervousness, anorexia, confusion, hallucinations, drowsiness, irritability, ataxia, vertigo, skin rash.

Fire Hazard

Special Hazards of Combustion Products: Material decomposes into N 2 and HBr or Br 2 under extreme temperatures.

Flammability and Explosibility

Non flammable

Purification Methods

It crystallises from 95% EtOH and is slightly hygroscopic.

Ammonium bromide(12124-97-9)Related Product Information

• Ammonium sulfate
• Ammonium chloride
• Ammonium citrate tribasic
• Tetraoctylammonium bromide
• Molybdic acid
• Ammonium acetate
• Tetraethylammonium bromide
• Ammonium hydroxide
• Tetrabutylammonium bromide
• Tetramethylammonium bromide
• Benzyltriethylammonium bromide
• Sodium bromide
• SODIUM NITRITE-15N
• LEAD(II) BROMIDE
• Lithium bromide
• NICKEL BROMATE
• Potassium bromide
• Benzyl bromide