Zinc Fluoride
Title: Zinc Fluoride
CAS Registry Number: 7783-49-5
Molecular Formula: F2Zn
Molecular Weight: 103.41
Percent Composition: F 36.74%, Zn 63.25%
Line Formula: ZnF2
Literature References: Prepd from ZnCO3 and HF: Ruff, Die Chemie des Fluors (Berlin, 1920) p 36; Emeleus in Fluorine Chemistry vol. 1, J. H. Simons, Ed. (Academic Press, New York, 1950) p 38; Kwasnik in Handbook of Preparative Inorganic Chemistry vol. 1, G. Brauer, Ed. (Academic Press, New York, 2nd ed., 1963) p 242.
Properties: Tetragonal needles (rutile lattice) or white cryst mass. d25 5.00: Haendler et al., J. Am. Chem. Soc. 74, 3167 (1952). mp 872°. bp 1500°. Soly in water: 5 ´ 10-5 moles/l, Kwasnik, loc. cit. Slightly sol in aq HF, more sol in HCl, HNO3, NH4OH. Zinc fluoride used for fluorinations should be slightly hydrated.
Melting point: mp 872°
Boiling point: bp 1500°
Density: d25 5.00: Haendler et al., J. Am. Chem. Soc. 74, 3167 (1952)
Derivative Type: Tetrahydrate
Properties: Rhombohedral crystals, becomes anhydr at 100°. Soly in water: 1.516 g/100 ml. May be stored in glass bottles.
Use: In the fluorination of organic compds, manuf phosphors for fluorescent electric lights, glazes and enamels for porcelain, preserving wood, in electroplating baths.

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