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等级
ACS reagent
质量水平
蒸汽密度
8.7 (vs air)
方案
≥99.5%
表单
crystals
反应适用性
reagent type: oxidant
杂质
≤0.005% insolubles
缺失
≤3.0% loss on drying
pH值（酸碱度）
3-4 (25 °C, 50 g/L)
mp
170 °C (dec.) (lit.)
痕量阴离子
chloride (Cl-): ≤0.005%
sulfate (SO42-): ≤0.01%
痕量阳离子
Ca: ≤0.002%
Fe: ≤0.002%
Na: ≤0.005%
SMILES字符串
N.N.O[Cr](=O)(=O)O[Cr](O)(=O)=O
InChI
1S/2Cr.2H3N.2H2O.5O/h;;2*1H3;2*1H2;;;;;/q2*+1;;;;;;;;;/p-2
InChI key
XAQCJVGGJJFLPP-UHFFFAOYSA-L
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一般描述
Ammonium dichromate is a hexavalent chromium compound with a high oxidation potential. Hexavalent chromium is potent carcinogen and an environmental pollutant.
应用
Ammonium dichromate may be used in the following processes:
- Oxidation of alcohols in the presence of Mg(HSO4)2 (magnesium hydrogen sulfate) and wet SiO2 (silicon dixide).
- Preparation of Cr2O3/Al2O3 (chromium (III) oxide/aluminium oxide) catalysts.
- Oxidative coupling of thiols.
- Preparation of mesoporous molecular sieves.
- Preparation of polypyrrole (PPy).
- Preparation of solid oxide fuel cell (SOFC) interconnect.
警示用语：
Danger
危险分类
Acute Tox. 2 Inhalation - Acute Tox. 3 Oral - Acute Tox. 4 Dermal - Aquatic Acute 1 - Aquatic Chronic 1 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Sol. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 1
储存分类代码
4.1A - Other explosive hazardous materials
WGK
WGK 3
闪点(°F)
Not applicable
闪点(°C)
Not applicable
法规信息
易制爆化学品
危险化学品
Voltammetry of chromium (VI) at the liquid| liquid interface.
O'Mahony AM, et al.
Electrochemical Communications, 7(10), 976-982 (2005)
Oxidative dehydrogenation of propane over Cr2O3/Al2O3 and Cr2O3 catalysts: effects of loading, precursor and surface area.
Cherian M, et al.
Applied Catalysis A: General, 233(1), 21-33 (2002)
Oxidative coupling of thiols in solution and under solvent-free conditions.
Shirini F, et al.
Mendeleev Communications, 14(1), 34-35 (2004)
Polypyrrole as a protective pigment in organic coatings
Selvaraj M, et al.
Synthetic Metals, 158(21), 888-899 (2008)
Oxidation of Alcohols by (NH4)2Cr2O7 in Solution and Under Solvent-Free Conditions.
Shirini F, et al.
Australian Journal of Chemistry, 54(6), 405-406 (2001)
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