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Merck

213349

Sigma-Aldrich

Ammoniumbromid

ACS reagent, ≥99.0%

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About This Item

Lineare Formel:
NH4Br
CAS-Nummer:
Molekulargewicht:
97.94
EG-Nummer:
MDL-Nummer:
UNSPSC-Code:
12352302
eCl@ss:
38050407
PubChem Substanz-ID:
NACRES:
NB.24

Qualität

ACS reagent

Dampfdruck

1 mmHg ( 198.3 °C)

Assay

≥99.0%

Form

powder or crystals

Verunreinigungen

≤0.005% insolubles

Glührückstand

≤0.01%

pH-Wert

4.5-6.0 (25 °C, 5%)

mp (Schmelzpunkt)

452 °C (lit.)

Dichte

2.43 g/mL at 25 °C (lit.)

Anionenspuren

bromate (BrO3-): ≤0.002%
chloride (Cl-): ≤0.2%
iodide (I-): ≤0.005%
sulfate (SO42-): ≤0.005%

Kationenspuren

Ba: ≤0.002%
Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)

SMILES String

N.Br[H]

InChI

1S/BrH.H3N/h1H;1H3

InChIKey

SWLVFNYSXGMGBS-UHFFFAOYSA-N

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Allgemeine Beschreibung

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).

Anwendung

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.

Piktogramme

Health hazardExclamation mark

Signalwort

Danger

Gefahreneinstufungen

Eye Irrit. 2 - Lact. - Repr. 1B - STOT RE 1 - STOT SE 3

Zielorgane

Central nervous system, Nervous system

Lagerklassenschlüssel

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

WGK

WGK 1

Flammpunkt (°F)

Not applicable

Flammpunkt (°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)
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)
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
Low-Frequency Vibrations in Ammonium Iodide and Ammonium Bromide.
Durig JR and Antion DJ.
J. Chem. Phys. , 51(9), 3639-3647 (1969)
Fredrik Hallberg et al.
Journal of magnetic resonance (San Diego, Calif. : 1997), 192(1), 69-77 (2008-02-22)
Although simple as a concept, electrophoretic NMR (eNMR) has so far failed to find wider application. Problems encountered are mainly due to disturbing and partly irreproducible convection-like bulk flow effects from both electro-osmosis and thermal convection. Additionally, bubble formation at

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