Periodic Table · element
Fluorine
F · Z 9
- atomic number
- 9
- atomic mass
- 18.998
- notation
- F
- group
- 17: Fluorine
- period
- 2
- state0c
- Gas
- state20c
- Gas
- occurrence
- Primordial
- density
- 0.001696
- melting pt
- -219.6
- boiling pt
- -188.12
- discovered
- 1810
- abundance
- 585
- bio class
- Ultratrace
- bio role
- Substitutes into tooth apatite as fluorapatite, which needs a lower pH to dissolve. Beneficial rather than established as essential.
- ore grade
- 170000
- ore minerals
- fluorite (fluorspar)
- mined as
- Primary
extraction
Fluorite is floated to acid-grade concentrate and reacted with sulfuric acid to make hydrofluoric acid, the root of every fluorochemical from refrigerants to Teflon; lower grades go into steelmaking as flux.
categories
#Nonmetal#Halogens#Diatomicnonmetal
Referenced by
machine
mine
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