213349
Ammonium bromide
ACS reagent, ≥99.0%
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A propos de cet article
Formule linéaire :
NH4Br
Numéro CAS:
Poids moléculaire :
97.94
PubChem Substance ID:
eCl@ss:
38050407
UNSPSC Code:
12352302
NACRES:
NB.24
EC Number:
235-183-8
MDL number:
Assay:
≥99.0%
Grade:
ACS reagent
Form:
powder or crystals
Service technique
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ACS reagent
Quality Level
vapor pressure
1 mmHg ( 198.3 °C)
assay
≥99.0%
form
powder or crystals
impurities
≤0.005% insolubles
ign. residue
≤0.01%
pH
4.5-6.0 (25 °C, 5%)
mp
452 °C (lit.)
density
2.43 g/mL at 25 °C (lit.)
anion traces
bromate (BrO3-): ≤0.002%, chloride (Cl-): ≤0.2%, iodide (I-): ≤0.005%, sulfate (SO42-): ≤0.005%
cation traces
Ba: ≤0.002%, Fe: ≤5 ppm, heavy metals: ≤5 ppm (by ICP)
SMILES string
N.Br[H]
InChI
1S/BrH.H3N/h1H;1H3
InChI key
SWLVFNYSXGMGBS-UHFFFAOYSA-N
General description
Laser excited Raman spectral study reveals that 1?0 torsional transitions of the NH4+ ion in phase III of NH4Br were observed at 331cm-1. Neutron diffraction studies have been conducted to evaluate the P-T phase diagram of NH4Br and its deuterated form (ND3Br).
Application
Ammonium bromide may be used in the preparation of organic ammonium tribromides. It may also be used as a reagent during the transformation of benzyl derivatives of halides, amines, alcohols, and aldehydes into respective nitriles via oxidation.
signalword
Danger
Hazard Classifications
Eye Irrit. 2 - Lact. - Repr. 1B - STOT RE 1 - STOT SE 3
target_organs
Central nervous system, Nervous system
Classe de stockage
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
flash_point_f
Not applicable
flash_point_c
Not applicable
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Direct oxidative conversion of benzylhalides,-amines,-alcohols, and arylaldehydes to nitriles with trans-3, 5-dihydroperoxy-3, 5-dimethyl-1, 2-dioxolane activated by NH4Br.
Azarifar D and Najminejad Z.
Journal of the Iranian Chemical Society, 12(1), 107-111 (2015)
Veerababurao Kavala et al.
The Journal of organic chemistry, 70(11), 4267-4271 (2005-05-21)
1,2-Dipyridiniumditribromide-ethane (DPTBE) has been synthesized and explored as a new efficient brominating agent. The crystalline ditribromide reagent is stable for months and acts as a safe source of bromine requiring just 0.5 equiv for complete bromination. It has high active
Neutron-diffraction measurements on the P-T phase diagram of ammonium bromide.
Press W, et al.
Physical Review. B, Condensed Matter and Materials Physics, 14(5), 1983-1983 (1976)