Ammonium Bichromate 99% Extrapure
Ammonium Dichromate
Product Code. |
00183 |
Grade |
Extrapure |
Purity |
99% |
CAS No. |
7789-09-5 |
Molecular Formula |
(NH4)2Cr2O7 |
Molecular Weight |
252.06 |
H.S.Code |
2841.50900 |
Shelf Life |
60 Months |
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 |
Packaging
Specification
| Appearance | Orange coloured crystals or crystalline powder |
| Assay (iodometric) | Min 99% |
| Chloride (Cl) | Max 0.01% |
| Sulphate (SO4) | Max 0.05% |
Safety Information and Hazard Symbols
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