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AMMONIUM DICHROMATE AR

AMMONIUM DICHROMATE AR

AMMONIUM DICHROMATE AR

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Description

Ammonium bichromate
Article No. 01161 Grade AR
Purity 99.5% CAS No. 7789-09-5
Molecular Formula (NH4)2Cr2O7 Molecular Weight 252.06
H.S. Code 2841.5090 Shelf Life 60 Months
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Physical Properties
Physical state at 20 °C Solid Colour Orange to red
Odour Odorless pH value 3 – 4
Melting point/ Freezing point [°C] 170 °C Decomposition point [°C] 170 °C
Auto-ignition temperature [°C] 218°C Density [g/cm3] 2.15
Solubility in water [% weight] 360 g/l (20°C) Oxidising properties The substance or mixture is classified as oxidizing with the subcategory 2

Specifications
Appearance Orange colored crystalline powder
Assay (on anhydrous basis) Min 99.5%
Insoluble matter Max 0.005%
Chloride (Cl) Max 0.005%
Sulphate (SO4) Max 0.01%
Loss on drying (at 105°C) Max 3.0%
Calcium (Ca) Max 0.0025%
Sodium (Na) Max 0.02%

Packings
500 g 00500
25 Kg 0025K
50 Kg 0050K

Safety Information
Symbol: GHS03, GHS05, GHS06, GHS08, GHS09
Signal Word: Danger
UN No.: 1439
IMCO Class No.: 5.1
Packing Group: II
Hazardous Statement: H272-H301-H312-H314-H317-H330-H334-H340-H350-H360FD-H372-H410
Precaution Statement: P201-P220-P260-P273-P280-P284

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