Testing mouth rinses for fluoride. Fluoride (typically in form of sodium fluoride, NaF) is often added to mouth rinse for cavity prevention. To test two samples of mouth rinses for fluoride, 1M solution of calcium acetate (Ca(C2H3O2)2) is added to both. CaF2 precipitate is formed in the left test tube, indicating presence of fluoride, NaF + Ca(C2H3O2)2 -> NaC2H3O2 + CaF2. The right sample does not chance its appearance indicating no fluoride presence. | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / Giphotostock |
Bildgröße: | 3393 px × 5152 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |