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Ammonium dichromate

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Formula: Cr2H8N2O7
CAS: 7789-09-5
search Element: dichromate ammonium

Identification

Structural Formula
Ammonium dichromate
CAS:
7789-09-5
EINECS:
232-143-1
Molecular Formula:
Cr2H8N2O7
MDL:
MFCD00010879
SMILES:
[NH4+].[NH4+].[O-][Cr](=O)(=O)O[Cr](=O)(=O)[O-]
Synonym:
ammoniumbichromaat ; ammonium dichromate ; ammonio(bicromatodi) ; ammonium chromate ; ammonium bichromate ; diammonium dichromate ; ammonio(dicromatodi) ; chromicacid, diammonium salt (9ci) ; chromic acid, ammonium salt (1:2) ; diammoniumdichromate ; ammoniumdichromaat ; bichromated'ammonium ; ammonium pyrochromate ; ammoniumdichromat ; dichromic acid, diammoniumsalt (8ci)


Description

Ammonium dichromate is a strong oxidizing agent and is reactive with any reducing agent. The stronger the reducing agent, the more violent the reaction. Ammonium dichromate has been used to promote the oxidation of alcohols and thiols. Has been reported for use in evaluation of the oxidant and antioxidant capacity of various biological samples and known antioxidants. Ammonium dichromate, in the presence of Mg(HSO4)2 and wet SiO2 can act as a very efficient reagent for the oxidative coupling of thiols under solvent free conditions. The reactions produces reasonably good yields under relatively mild conditions. Has been used in the oxidation of aliphatic alcohols to their corresponding aldehydes and ketones in ZrCl4/wet SiO2 in solvent free conditions, again with relatively high yields. Ammonium dichromate is sometimes known as Vesuvian Fire, because of its use in demonstrations of tabletop "volcanoes".


Suppliers

Autech Industry Co.,Limited
AIC10264104
Lori Industry Co., Ltd
LI8362508
Krada CPS Industry S.L
KCIS8364180
Create Chemical Co., Ltd.
CC9502850
Sentury Reagents Inc.
SR7982394
Sancai Industry Co.,Ltd.
SIC9123648
Hainan Zhongxin Chemical Co., Ltd.
HZC12925168
Fox Chemicals GmbH
FC6842052
scienTEST - bioKEMIX GmbH
S-B9503800
Hangzhou Ocean Chemical Co., Ltd.
HOC12545016
Xingrui Industry Co., Limited
XIL11024408
Leap Chem Co., Ltd
LC6842052
Santa Cruz Biotechnology, Inc.
202937
Chemos GmbH & Co. KG
CC7602280
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Gihi Chemicals Co., Limited
GCL356414256

Prices & Availability




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Properties for Ammonium dichromate

Molecular Weight:
252.06 g·mol−1
Density:
2.150 g/cm3
Melting point:
170 °C (dec.)(lit.)
Solubility:
H2O: 1 M at 20 °C, clear, colorless
Physical Description:
bright orange-red crystals
Transport Information:
UN 1439 5.1/PG 2
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Safety & Transport Information

Risk Codes:
R2 - Risk of explosion by shock, friction, fire or other sources of ignition
R21 - Harmful in contact with skin
R25 - Toxic if swallowed
R26 - Very toxic by inhalation
R34 - Causes burns
R42/43 - May cause sensitization by inhalation and skin contact
R45 - May cause cancer
R46 - May cause inheritable genetic damage
R48/23 - Toxic: danger of serious damage to health by prolonged exposure through inhalation
R50/53 - Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment
R60 - May impair fertility
R61 - May cause harm to the unborn child
R8 - Contact with combustible material may cause fire
Safety Codes:
S45 - In case of accident or if you feel unwell seek medical advice immediately (show the label where possible)
S53 - Avoid exposure - obtain special instructions before use
S60 - This material and its container must be disposed of as hazardous waste
S61 - Avoid release to the environment. Refer to special instructions/safety data sheet
Hazard Classes:
5.1
Hazard Symbols:
E, T+, N
Hazard symbol N Hazard symbol E Hazard symbol T+
RID/ADR certification :
UN 1439 5.1 / PG 2
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Alternative Distributors of [Ammonium dichromate]

Producers or manufacturers change the product range from time to time. The following companies
have appeared as suppliers in the past / currently not verified

Azelis Deutschland GmbH | Jinan Great Chemical Co., Ltd. | Hangzhou Ocean Chemical Co., Ltd. | Jinan Haohua Industry Co., Ltd. | Pfaltz & Bauer, Inc. | scienTEST | Gihi Chemicals Co., Limited | Wanko Chemical Co., Ltd.

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