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?????? ??? ???
?? ??:
12124-97-9
???:
??????
???(??):
????HYDROBROMICACIDMONOAMMONIATE;??????;???????;???????;???????;???????;????;??????;????????
???:
Ammonium bromide
???(??):
(NH4)Br;FR-11;Azanium bromide;ammonmm bromide;AMMONIUM BROMIDE;AmmoniumBromideGr;Ammonium Bromide AR;AMMONIUM BROMIDE, ACS;AMMONIUM BROMIDE pure;Ammonium bromide, 98%
CBNumber:
CB1126958
???:
BrH4N
??? ??:
97.94
MOL ??:
12124-97-9.mol

?????? ??

???
452 °C (lit.)
?? ?
396 °C/1 atm (lit.)
??
2.43 g/mL at 25 °C (lit.)
?? ??
1100kg/m3
???
1 mm Hg ( 198.3 °C)
?? ??
Inert atmosphere,Room Temperature
???
H2O: 1 M at 20 °C, ??, ??
?? ?? (pKa)
-1.03±0.70(Predicted)
??? ??
??/??
??
???
Specific Gravity
2.429
??
?? ??
pH ??
4.5 - 6.0
??????(pH)
5.0-6.0 (25℃, 50mg/mL in H2O)
???
97g/100mL(25℃)
????
2.51 W/(m·K)
??
Hygroscopic
Merck
14,505
Dielectric constant
7.2(0.0℃)
???
????. ?, ??? ??, ??? ??, ???? ???? ??? ???? ????.
InChI
1S/BrH.H3N/h1H;1H3
InChIKey
SWLVFNYSXGMGBS-UHFFFAOYSA-N
SMILES
N.Br[H]
LogP
-1 at 25℃
CAS ??????
12124-97-9(CAS DataBase Reference)
NIST
Ammonium bromide(12124-97-9)
EPA
Ammonium bromide (12124-97-9)
??
  • ?? ? ?? ??
  • ?? ? ???? ?? (GHS)
??? ?? Xn,Xi
?? ???? ?? 22-36/37/38-36
????? 22-24/25
WGK ?? 2
RTECS ?? BO9155000
TSCA TSCA listed
HS ?? 28275900
???? ??? 6.1C - Combustible acute toxic Cat.3
toxic compounds or compounds which causing chronic effects
Hazard Classifications Eye Irrit. 2
Lact.
Repr. 1B
STOT RE 1
STOT SE 3
?? ?? ??? 12124-97-9(Hazardous Substances Data)
?? LD50 orally in Rabbit: 2714 mg/kg
???? ?? KE-01639
????(GHS): Exclamation Mark (GHS07)
?? ?: Warning
??·?? ??:
?? ??·?? ?? ?? ?? ?? ?? ? ?? ?? P- ??
H319 ?? ?? ??? ??? ?? ? ?? ?? ??? ?? ?? 2A ?? P264, P280, P305+P351+P338,P337+P313P
??????:
P264 ?? ??? ?? ??? ????.
P264 ?? ??? ?? ??? ????.
P280 ????/???/???/?????? ?????.
P305+P351+P338 ?? ??? ? ?? ?? ???? ????. ???? ?????? ?????. ?? ????.
P337+P313 ?? ?? ??? ???? ???? ??· ??? ????.
NFPA 704
0
2 0

?????? MSDS


Ammonium bromide

?????? C??? ??, ??, ??

?? ??

??? ????? (NH4Br)? ?? ?? ?? ? ?? ??? ??? ???? ?????.
?? ???? ?? ? ?? ??? biocide? ?????.

?? ??

???
?????
??? ???

??

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

??? ??

Ammonium bromide is a weak acid with a pKa of approximately 5 in water. It is an acid salt because the ammonium ion hydrolyzes slightly in water.
NH4Br(s) → NH+4(aq) + Br-(aq)
It decomposes to ammonia and hydrogen bromide when heated at elevated temperatures.

??? ??

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.

??

Ammonium bromide is a colorless crystals used for its bromide ion, it was also used as a halide in collodion formulas and as a restrainer in alkaline developers.

?? ??

Ammonium bromide can be prepared by the direct action of hydrogen bromide on ammonia. NH3 + HBr → NH4Br

??

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

?? ??

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

??? ?? ??

Water soluble

?? ???

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

????

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.

????

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

Purification Methods

It crystallises from 95% EtOH and is slightly hygroscopic.

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