prov:value
| - Among suitable compounds yielding fluoride ions are inorganic fluoride salts, such as soluble alkali metal and alkaline earth metal salts, for example sodium fluoride, potassium fluoride, barium fluoride, or calcium fluoride and ammonium fluoride, or a copper fluoride, or zinc fluoride, sodium fluorosilicate, ammonium fluorosilicate, sodium fluorozirconate, sodium mono-fluorophosphate, aluminium m
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