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About This Item
线性分子式:
NH4Br
CAS号:
分子量:
97.94
EC號碼:
MDL號碼:
分類程式碼代碼:
12352302
eCl@ss:
38050407
PubChem物質ID:
NACRES:
NB.24
化驗:
≥99.0%
等級:
ACS reagent
形狀:
powder or crystals
推荐产品
等級
ACS reagent
品質等級
蒸汽壓力
1 mmHg ( 198.3 °C)
化驗
≥99.0%
形狀
powder or crystals
雜質
≤0.005% insolubles
燃燒殘留物
≤0.01%
pH值
4.5-6.0 (25 °C, 5%)
mp
452 °C (lit.)
密度
2.43 g/mL at 25 °C (lit.)
負離子痕跡
bromate (BrO3-): ≤0.002%
chloride (Cl-): ≤0.2%
iodide (I-): ≤0.005%
sulfate (SO42-): ≤0.005%
正離子痕跡
Ba: ≤0.002%
Fe: ≤5 ppm
heavy metals: ≤5 ppm (by ICP-OES)
SMILES 字串
N.Br[H]
InChI
1S/BrH.H3N/h1H;1H3
InChI 密鑰
SWLVFNYSXGMGBS-UHFFFAOYSA-N
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一般說明
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).
應用
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.
訊號詞
Danger
危險分類
Eye Irrit. 2 - Lact. - Repr. 1B - STOT RE 1 - STOT SE 3
標靶器官
Central nervous system, Nervous system
儲存類別代碼
6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects
水污染物質分類（WGK）
WGK 1
閃點（°F）
Not applicable
閃點（°C）
Not applicable
其他客户在看
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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