Potassium Bifluoride KHF2 CAS NO.7789-29-9

Potassium Bifluoride KHF2

1. Name: Potassium Bifluoride

2. Molecular Formula: KHF2

3. Molecular Weight: 78.10

4. Specification:

• Appearance: Achromaticity crystals

• Purity(HF): 25~26 %

• Iron(Fe): 0.005% max         

• Sulphate(SO₄): 0.05% max

• Heavy metals (as Pb): 0.003% max         

• Chloride(Cl): 0.05% max

• Fluorosilicate (as K₂SiF₆): 0.6% max      

•  Water(H₂O): 0.5% max

5. Character :

• It is a colourless tetragonal or cubic crystal with slightly acidic smell and relative density of 2.37, mp 225°C.

• It is easy soluble in water, insoluble in alcohol.

• Its aqueous solution is acidity. It is stable in dry air, but decomposes to release hydrogen fluoride in humid air.

• It gives of HF when heated to 310°C, and the steam pressure of hydrogen fluoride could reach 0.10325Mpa(l atm) at 400°C.

• The activity of fused potassium bifluoride is greater than potassium fluoride.

• It is toxic and caustic.

6. Uses: It is used in dielectric in the manufacture of anhydrate hydrogen fluoride, pure potassium fluoride and fluorine. It is also used to manufacture optical glass and carving glass, as flux of silver ware, as timber antiseptic and shelter and as catalyst in the alkylation of benzene.

7. Packing: Packing with plastic weaven bag lined with polythene plastic bag . 25kg per bag.

8. Storage: Keep product dry and well in original packaging, closed. In case of contact with the skin, rinse with a lot of water. In case of contact with the eyes, rinse with plenty of water and seek immediate medical advice.