Molecular formula: KF
Molecular Weight: 58.10。
Quality Standard: GB4293-84
Physical and chemical properties:
Colorless cubic crystal, melting point 858℃, easy to dissolve in water, soluble in hydrofluoric acid, liquid ammonia, aqueous solution is acidic.
Product usage:
Glass etching, food anticorrosion, welded solvents, insecticides, fluorinated agents and absorbers, analytical reagents and raw materials for the production of acid potassium fluoride, etc.
|
Index name |
Premium Grade |
First Grade |
Qualified |
|
Potassium fluoride(KF)% |
≥99 |
≥98 |
≥96 |
|
Potassium Chloride(KCI) |
≤0.33 |
≤0.5 |
≤0.7 |
|
Moisture% |
≤0.3 |
≤0.4 |
≤0.5 |
|
Free acid(HF)% |
≤0.1 |
≤0.1 |
≤0.1 |
|
KOH% |
≤0.1 |
≤0.1 |
≤0.1 |
|
Sulfate(SO4)% |
≤0.1 |
≤0.2 |
≤0.3 |
|
Fluoride silicate(H2SiF6)% |
≤0.1 |
≤0.2 |
≤0.3 |
|
Iron Fe% |
≤0.01 |
- |
- |