Molecular formula: KHF2
Molecular weight: 78.11
Application: Chemical reagent, used for manufacturing ceramics and magnesium alloy, etc. Used for the manufacture of anhydrous hydrogen fluoride, pure potassium hydrogen fluoride, elemental fluorine production of electrolytes, also used for the manufacture of optical glass, etched glass, but also can be used as silver products welding cosolvent, wood preservatives, masking agent and benzene alkylation catalyst.
Properties: white or colorless transparent square crystal system crystals, slightly sour odor, easy to dissolve in the air, slightly soluble in alcohol, easy to dissolve in cold water, decomposition in hot water, aqueous solution is strong acid, at high temperature can sublimate, can corrosion glass, ammonium hydrogen fluoride, toxic, corrosive to the skin, should be closed storage in plastic containers.
Specific gravity: 2.37g/mL(25℃)
Melting point: 239℃.
Case # : 7789-29-9
Customs Number: 2826199020
MSDS: YF0405-01
Hazard code number: 83004
| Potassium hydrogen fluoride | |
| Item | Standard |
| Appearance | white crystal |
| Content % | ≥99.00％ |
| Free acid % | 25.5-25.8 |
| Chloride % | ≤0.01 |
| Sulfate % | ≤0.02 |
| Fluorosilicate % | ≤0.01 |
| Heavy metal % | ≤0.003 |
| Nickel % | ≤0.001 |
| Iron % | ≤0.0005 |
| Loss on drying % | ≤0.20 |
| PH（5% aqueous solution）% | 3.30-3.50 |
| Whiteness % | ≥85.00 |
| Transmittance (15%queous solution) % | ≥99.00 |
Note: Special requirements of customers can be negotiated for production of specific specifications.
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