Potassium Bifluoride
Molecular formula: KHF2 Molecular weight : 78.11
Uses: Chemical reagents used in the manufacture of ceramics and magnesium alloys; for the manufacture of anhydrous hydrogen fluoride, pure Potassium bifluoride production of elemental fluorine electrolyte used in the manufacture of optical glass, painted glass corrosion, but also can be used as the welding of silver products cosolventwood preservatives, masking agents and benzene alkylation catalyst.
Property:White or colorless tetragonal system crystalline, slightly sour smell, easily dissolved in the air, slightly soluble in alcohol, easily soluble in cold water, decomposed in the hot water, water on solvent is strongly acidic, at a higher temperatureunder sublimation can, can corrode glass, Ammonium bifluoride, toxic, corrosive to the skin and stored in plastic containers should be sealed. S.G.: 2.37g/mL, (25 ° C), Melting point : 239 ℃.
CAS#: 7789-29-9 Customs No.: 2826199020 MSDS: YF0405-01 Risk No.: 83004
Product specification |
Reagent grade (analytically pure) |
Export grade |
Industrial grade |
Standard |
Hu Q/HG22-509-85 |
Yotech Standard |
Yotech Standard |
Assay ％ |
≥99.5 |
≥99.0 |
≥98.0 |
Free acid ％ |
24.5-26 |
24.5-26 |
24.5-26 |
Chloride (Cl) ％ |
≤0.005 |
≤0.01 |
≤0.05 |
Sulfate (SO4) ％ |
≤0.005 |
≤0.02 |
≤0.05 |
Fluorosilicates (as K2SiF6) ％ |
≤0.02 |
≤0.1 |
≤0.3 |
Heavy metal
(as Pb) ％ |
≤0.002 |
≤0.003 |
≤0.005 |
Bulk Density (20 mesh ) kg/L |
0.86-0.92 |
0.88-0.92 |
0.86-0.92 |
Solubility g |
insoluble in absolute alcohol |
insoluble in absolute alcohol |
insoluble in absolute alcohol |
Ni ％ |
≤0.0002 |
≤0.001 |
≤0.001 |
Fe ％ |
≤0.0005 |
≤0.003 |
≤0.005 |
PH (5% Aq. solution) |
2.5-2.7 |
2.5-2.7 |
2.5-2.7 |
Intermediate inspection |
Appearance Identification |
white crystal |
white crystal |
white crystal |
Loss on dry (105℃/2H) ％ |
≤0.1 |
≤0.2 |
≤0.5 |
Whiteness ％ |
≥85 |
≥85 |
≥80 |
Transmission (15％ Aq. solution) ％ |
≥99 |
≥99 |
≥95 |
Foreign substance detection |
≤1mm/10 |
≤1mm/10 |
≤1mm/10 |
Shelf life year |
Two years |
Two years |
Two years |
Supply reference |
Production process |
second Recrystallization process |
99.5％HF synthesis |
Industrial grade
synthesis crystal |
Packing |
25KG paper bag/16T/(20')FCL |
25KG paper bag/16T/(20')FCL |
25KG paper bag/16T/(20')FCL |
Specification of price |
FCL |
FCL |
FCL |
Price CNY/T |
|
|
|
Validity period of quoted price |
3 months |
3 months |
3 months |
Note: special requirements are negotiable for customers with specific specifications. |
