Chromium nitrate
From Wikipedia, the free encyclopedia
| Chromium nitrate | |
|---|---|
 |
|
| IUPAC name |
|
| Other names | Nitric acid, chromium(3+) salt |
| Identifiers | |
| CAS number | [], 7789-02-8 (nonahydrate) |
| PubChem | |
| UN number | 2720 |
| RTECS number | GB6300000 |
| Properties | |
| Molecular formula | Cr(NO3)3 |
| Molar mass | 238.011 g/mol (anhydrous) 400.21 g/mol (nonahydrate) |
| Appearance | blue-violet crystals (anhydrous) purple crystals (nonahydrate) |
| Density | 1.85 g/cm3 (nonahydrate) |
| Melting point |
60.06 °C (nonahydrate) |
| Boiling point |
> 100 °C (decomp.) |
| Solubility in water | 81 g/100 mL (20 °C) |
| Hazards | |
| MSDS | Oxford MSDS |
| EU Index | Not listed |
| NFPA 704 |
 0
3
1
OX
|
| Flash point | Non flammable |
| LD50 | 3250 mg/kg (rat, oral, nonahydrate) |
| Except where noted otherwise, data are given for materials in their standard state (at 25 °C, 100 kPa) Infobox references |
|
Chromium(III) nitrate is the chromium salt of nitric acid. This nitrate exists as a nonahydrate Cr(NO3)3·9H2O.
[edit] Properties
The anhydrous salt forms green crystals and very soluble in water. At 100 °C it decomposes. The hydrate has a red-violet color. Its melting point is 36–37 °C. Chromium nitrate is used in the production of alkali metal-free catalysts and in pickling.
[edit] References
- This article incorporates information from the German Wikipedia.
|
|||||
