Potassium nitrate - 12648
Code: 12648
Potassium nitrate
Puriss., meets analytical specification of Ph Eur, BP, USP, FCC, E252, 99.0-100.5%
meets analytical specification of Ph Eur, BP, USP, FCC, E252
CAS Number: 7757-79-1
Linear Formula: KNO3
Molar Mass: 101 g/mol
EC Number: 231-818-8
MDL Number: MFCD00011409
| Property |
Value |
| Assay |
99.0 - 100.5 % |
| Assay (calculated to the dried substance) |
99.0 - 100.5 % |
| Loss on drying (105°C) |
max. 0.5 % |
| PH (5 %, 20°C) |
5 - 8 |
| Ammonium (NH4) |
max. 50 ppm |
| Arsenic (As) |
max. 1 ppm |
| Calcium (Ca) |
max. 50 ppm |
| Copper (Cu) |
max. 10 ppm |
| Iron (Fe) |
max. 10 ppm |
| Mercury (Hg) |
max. 1 ppm |
| Sodium (Na) |
max. 0.1 % |
| Lead (Pb) |
max. 2 ppm |
| Zinc (Zn) |
max. 10 ppm |
| Heavy metals (as Pb) |
max. 10 ppm |
| Chloride (Cl) |
max. 10 ppm |
| Nitrite (NO2) |
max. 5 ppm |
| Sulfate (SO4) |
max. 100 ppm |
| Chlorate (ClO3) |
complying |
| Appearance of the solution |
complying |
| Acidity or alkalinity |
complying |
| Reducible impurities |
complying |
| Residual solvents |
complying |
| Identity on K |
complying |
| Identity on NO3 |
complying |
| Property |
Value |
| Freezing point |
335 °C |
| Density |
2.11 g/cm3 |
