Identification
(NH4)2Cr2O7
M = 252,07 g/mol
CAS [7789-09-5]
EC number: 232-143-1
Taric code: 2841 50 00
Synonyms
Ammonium bichromate, Ammonium pyrochromate
Applications
photography, in explosive compositions, catalyst, in porcelain industry, analytical chemistry.
Packaging
- 500 g
Physical data
- Appearance: humid crystals, orange
- Spec. Density: 2,15 g/cm3
- Solub. in water: (20 ºC): 360 g/l
- Melting point: 180 ºC (decomposes, explosion reaction)
- Ignition temperature: 218 ºC
- pH(100 g/l H2O, 20 ºC) 3,45