Information
Specification category:
| Product No. | Product name | specifications |
|
1.01778.010 | Potassium fluoborate | AR500g |
|
1.01778.020 | Potassium fluoborate | CP500g |
Characteristic:
Appearance and properties: White,odorless crystal powder.
Relative density: 2.505(water=1)(25℃)
Melting point(℃): 530
Boiling point(℃): >530(decomposition)
Concentration: Pure
Solubility: Slightly soluble in water and hot ethanol,insoluble in alkaline solution.
Technical indicators:
| Item | AR | CP |
|
Assay(KBF4) | ≥98.0% | ≥97.0% |
|
Free acid(as HF) | ≤0.1% | ≤0.2% |
|
Free alkali(as KOH) | ≤0.1% | ≤0.1% |
|
Chloride(Cl) | ≤0.002% | ≤0.005% |
|
Sulfate(SO4) | ≤0.002% | ≤0.005% |
|
Phosphate(PO4) | ≤0.005% | ≤0.01% |
|
Potassium fluosilicate(K2SiF6) | ≤0.3% | ≤0.8% |
|
Iron(Fe | ≤0.002% | ≤0.005% |
|
Heavy metals(as Pb) | ≤0.001% | ≤0.003% |