Molecular formula：KF
Molecular weight：58.10
CAS：7789-23-3
Physical and chemical properties:
Colorless cubic crystal, melting point 858℃, easily soluble in water, soluble in hydrofluoric acid, liquid ammonia, aqueous solution is acidic.
Production usage:Glass etching, food corrosion, welding solvents, pesticides, fluorides and absorbents, analytical reagents and preparation of acid potassium fluoride raw materials.
Quantity standard:
| Index name |
Superior quality |
1st grade |
Qualified grade |
|
| Potassium fluoride≥ |
99 |
98 |
96 |
| potassium chloride≤ |
0.33 |
0.5 |
0.7 |
| Moisture content%≤ |
0.3 |
0.4 |
0.5 |
| Syngonic acid（以HF计）%≤ |
0.1 |
0.1 |
0.1 |
| potassium hydroxide%≤ |
0.1 |
0.1 |
0.1 |
| Sulfate（以SO4计）%≤ |
0.1 |
0.2 |
0.3 |
| Silicate%≤ |
0.1 |
0.2 |
0.3 |
| Fe%≤ |
0.01 |
－ |
－ |
