030107

 

POTASSIUM BIFLUORIDE

 

 

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