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| Names | |
|---|---|
| Other names gallium trifluoride | |
| Identifiers | |
3D model (JSmol) | |
| ChemSpider |
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| ECHA InfoCard | 100.029.094 |
| EC Number |
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| UNII | |
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| Properties | |
| GaF3 | |
| Molar mass | 126.718 g/mol |
| Appearance | white powder |
| Density | 4.47 g/cm3 |
| Melting point | 800 °C (1,470 °F; 1,070 K) |
| Boiling point | 1,000 °C (1,830 °F; 1,270 K) |
| 0.0002 g/100 mL | |
| Structure | |
| Rhombohedral,hR24 | |
| R-3c, No. 167 | |
| Hazards | |
| GHS labelling: | |
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| Warning | |
| H302,H312,H332 | |
| P261,P264,P270,P271,P280,P301+P312,P302+P352,P304+P312,P304+P340,P312,P322,P330,P363,P501 | |
| NFPA 704 (fire diamond) | |
Except where otherwise noted, data are given for materials in theirstandard state (at 25 °C [77 °F], 100 kPa). | |
Gallium(III) fluoride (GaF3) is achemical compound. It is a white solid that melts under pressure above 1000 °C but sublimes around 950 °C. It has theFeF3 structure where the gallium atoms are 6-coordinate.[1] GaF3 can be prepared by reactingF2 orHF withGa2O3 or by thermal decomposition of (NH4)3GaF6.[2] GaF3 is virtually insoluble in water.[2] Solutions of GaF3 in HF can be evaporated to form the trihydrate, GaF3·3H2O, which on heating gives a hydrated form of GaF2(OH).[2] Gallium(III) fluoride reacts withmineral acids to formhydrofluoric acid.
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| view along the a axis | view along the c axis | Ga coordination | F coordination |
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