SYNONYM: Potassium acid fluoride;
Potassium hydrogendifluoride; potassium hydrogen fluoride
FORMULA: F2HK
M. W. : 78.0947
CAS NO.: 7789-29-9
DESCRIPTION: Colorless crystal of
tetragonal system; freely soluble in water; acidic in aqueou solution; no loss
of hydrogen fluoride in dry air while hydrogen fluoride released by absorbing
moisture in moistair.
SPECIFICATIONS:
|
CONTENT |
98% MIN. |
|
HYDROFLUORIC ACID (HF) |
25-26% |
|
CHORIDE (Cl) |
0.05% MAX. |
|
SILICATE (SiO3) |
0.1% MAX. |
|
SULFATE (SO4) |
0.05% MAX. |
|
IRON (Fe) |
0.005 MAX. |
USES: electrolyte in the preparation of fluorine; in
manufacture of anhydrous hydrogen fluoride, potassium fluoride; optical glass
and etched glass; also used as welding flux of various metal, wood preservative
and catalyst of benzene alkylation.
PACKING: 25KG/PLASTIC
WOVEN BAG, 20MT/FCL
UN NO.: 1811 CLASS:
8