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Merck
모든 사진(2)

주요 문서

213349

Sigma-Aldrich

Ammonium bromide

ACS reagent, ≥99.0%

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About This Item

Linear Formula:
NH4Br
CAS Number:
Molecular Weight:
97.94
EC Number:
MDL number:
UNSPSC 코드:
12352302
eCl@ss:
38050407
PubChem Substance ID:
NACRES:
NB.24

Grade

ACS reagent

Quality Level

vapor pressure

1 mmHg ( 198.3 °C)

분석

≥99.0%

양식

powder or crystals

불순물

≤0.005% insolubles

무기 잔류물

≤0.01%

pH

4.5-6.0 (25 °C, 5%)

mp

452 °C (lit.)

density

2.43 g/mL at 25 °C (lit.)

음이온 미량물

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

양이온 미량물

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

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관련 카테고리

일반 설명

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).

애플리케이션

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.

픽토그램

Health hazardExclamation mark

신호어

Danger

유해 및 위험 성명서

Hazard Classifications

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

표적 기관

Central nervous system, Nervous system

Storage Class Code

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

WGK

WGK 1

Flash Point (°F)

Not applicable

Flash Point (°C)

Not applicable


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문서 라이브러리 방문

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
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)
Low-Frequency Vibrations in Ammonium Iodide and Ammonium Bromide.
Durig JR and Antion DJ.
J. Chem. Phys. , 51(9), 3639-3647 (1969)
Hiroyuki Kawai et al.
Organic letters, 12(22), 5104-5107 (2010-10-20)
The first catalytic enantioselective trifluoromethylation of alkynyl ketones 1 with (trifluoromethyl)trimethylsilane is disclosed by an operationally simple procedure, based on the combination of ammonium bromide of bis-cinchona alkaloids with Me(4)NF to afford trifluoromethyl-substituted tertiary propargyl alcohols (up to 96% ee)

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