Stannous means the +2 valence state for tin (it's actually antiquated; it's better just to say Sn(II)). So, the formula must be SnF2.
SnF2 is stannous- or tin(II) fluoride
SnF2
SnF2 and NaF
The chemical symbol of hafnium is Hf
Some chemicals added to prevent tooth decay are: sodium fluoride, potassium fluoride, stannous fluoride, sodium fluoride phosphate, etc.
Stannous fluoride is a chemical compound often used in toothpaste and mouthwash for its ability to help prevent tooth decay and strengthen tooth enamel. It works by forming a protective layer on the teeth and inhibiting the growth of bacteria that can cause cavities. Additionally, stannous fluoride has anti-inflammatory properties that can help reduce gum inflammation.
No, sodium monofluorophosphate does not stain teeth like stannous fluoride. Staining of teeth is more commonly associated with stannous fluoride, whereas sodium monofluorophosphate is less likely to cause staining.
because tin is in +2 oxidation state (lower oxidation state of tin)
Both stannous fluoride and sodium fluoride are effective in preventing tooth decay and strengthening enamel. Stannous fluoride offers additional benefits such as reducing gum inflammation and sensitivity. The choice between the two may depend on individual preferences and specific dental needs.
Zinc sulphide has the chemical formula ZnS.
Calcium difluoride; Fluorspar; Acid spar the chemical formula is CaF2 (source: http://www.jtbaker.com/msds/englishhtml/c0374.htm)
Formula: SnF2