white crystal or white powder; belongs to tetragonal system, relative density is 2.558, m.p. 993°C, b.p. 1695°C; slightly soluble in alcohols, soluble in water, water solution is alkaline, corrosive to glass; soluble in hydrofluoric
acid and turns into sodium bifluoride.
USP Sodium Fluoride Specification
Acidity or Alkalinity
USP ≤2.0ml 0.1mol/L NaOH
≤0.5 ml 0.05mol/L H2SO4
USP ≤1.5ml 0.10N NaOH
Determine the nature-F-
USP 1g NaF ,add 15ml H2SO4 watch-glass has been corroded after boiling 1hour
Heavy metal (Pb)
Water ( Loss on Drying)
Determine the Nature-Na+
USP 0.1gNaF ,add 2ml water ,2ml 15%K2CO3 ,4ml H6KO6Sb, Heated to boiling have white precipitate
Protection Measures for Product Transport & Storage
To prevent from caking and going bad, it should be kept indoor or be covered with protection materials like canvas
and free from the blazing sun.
USP Sodium Fluoride Usages
NaF is an important fluoride, used as pesticides and bactericides in agriculture.
Used as wood conservative, water treatment agent, ceramic pigment and fluoride treatment of light metal.
Used as UF2 adsorbent in neclear industry.
Used as materials for making other fluoride chemicals, in enamel industry, toothpaste ,medical industry, paper-making industry, building materials, etc.
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