Zinc Fluoride (ZnF2)-Powder

Characteristic

Zinc fluoride (ZnF₂) is an inorganic chemical compound. It is encountered as the anydrous form and also as the tetrahydrate, ZnF₂ · 4H₂O (rhombohedral crystal structure). It has a high melting point and has the rutile structure containing 6 coordinate zinc, which suggests appreciable ionic character in its chemical bonding.

Chemical formula：ZnF₂

Molar mass：103.406 g/mol (anhydrous)

                       175.45 g/mol (tetrahydrate)

Appearance：white needles hygroscopic

Density：4.95 g/cm³ (anhydrous)

               2.30 g/cm³ (tetrahydrate)

Melting point：872 °C (1,602 °F; 1,145 K) (anhydrous)

                         100 °C, decomposes (tetrahydrate)

Boiling point：1,500 °C (2,730 °F; 1,770 K) (anhydrous)

Solubility in water：.000052 g/100 mL (anhydrous)

                                 1.52 g/100 mL, 20 °C (tetrahydrate)

Solubility：sparingly soluble in HCl, HNO₃, ammonia

Magnetic susceptibility (χ)：−38.2·10−6 cm³/mol

Crystal structure：tetragonal (anhydrous), tP6

Application

For ceramic glaze, electroplating;Used as wood impregnating agent, flux and analytical reagent.