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| Names | |
|---|---|
| IUPAC name
Zinc(II) fluoride | |
| Other names
Zinc difluoride | |
| Identifiers | |
 Y | |
3D model (JSmol) |
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| ChemSpider |
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| ECHA InfoCard | 100.029.092 
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| EC Number |
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PubChem CID |
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| RTECS number |
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| UNII |
Y |
| UN number | 3077 |
CompTox Dashboard (EPA) |
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| Properties | |
| 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) |
| .000052 g/(100 mL) (anhydrous) 1.52 g/(100 mL), 20 °C (tetrahydrate) | |
| Solubility | sparingly soluble in HCl, HNO3, ammonia |
| −38.2·10−6cm3/mol | |
| Structure | |
| tetragonal (anhydrous), tP6 | |
| P42/mnm, No. 136 | |
| Hazards | |
| GHS labelling:[1] | |
  
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| Danger | |
| H301, H315, H318, H335 | |
| P261, P264, P270, P271, P280, P301+P310, P302+P352, P304+P340, P305+P351+P338, P310, P312, P330, P332+P313, P337+P313, P362, P403+P233, P405, P501 | |
| NFPA 704 (fire diamond) | |
| Related compounds | |
Other anions |
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Other cations |
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Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). | |
Zinc fluoride is an inorganic chemical compound with the chemical formula ZnF2. It is encountered as the anhydrous form and also as the tetrahydrate, ZnF2·4H2O (rhombohedral crystal structure).[2] It has a high melting point and has the rutile structure containing 6 coordinate zinc, which suggests appreciable ionic character in its chemical bonding.[3] Unlike the other zinc halides, ZnCl2, ZnBr2 and ZnI2, it is not very soluble in water.[3]
Like some other metal difluorides, ZnF2 crystallizes in the rutile structure, which features octahedralZncations and trigonal planar fluorides.[4]
Zinc fluoride can be synthesized several ways.
Zinc fluoride can be hydrolysed by hot water to form the zinc hydroxide fluoride, Zn(OH)F.[5]
The salt is believed to form both a tetrahydrate and a dihydrate.[6]
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|---|---|---|---|
| Zinc(I) |
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| Zinc(II) |
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