Product Name
Sodium fluoride
Category
Electrolytes; Ceramic Materials
Description
NaF is an inorganic chemical compound with the formula NaF. A colorless solid, it is a source of fluoride ions in diverse applications. Sodium fluoride is less expensive and less hygroscopic than the related salt potassium fluoride.
IUPAC Name
sodium;fluoride
Molecular Weight
41.988172g/mol
Canonical SMILES
[F-].[Na+]
InChI
InChI=1S/FH.Na/h1H;/q;+1/p-1
InChI Key
PUZPDOWCWNUUKD-UHFFFAOYSA-M
Boiling Point
3083 °F at 760 mm Hg (NTP, 1992);1704 °C;1700 °C;3099°F
Flash Point
NotºConsidered to be a fire hazard
Solubility
10 to 50 mg/mL at 73° F (NTP, 1992);4g/100mL;Insoluble in alcohol;Solubility in water 4.0 g/100 ml water at 15 °C. Solubility in water 4.3 g/100 ml water at 25 °C. Solubility in water 5.0 g/100 ml water at 100 °C;Solubility in water, g/100ml at 20 °C: 4.0;4%
Appearance
White odorless powder or crystal
Application
Sodium fluoride serves multiple functions across various sectors due to its chemical characteristics. Primarily, it is used in the fluoridation of municipal drinking water, where adding 1 ppm of sodium fluoride helps prevent dental caries. Its applications extend to being a key component in manufacturing dental products, disinfectants, and adhesives. In the agricultural sector, it functions as an insecticide, rodenticide, and fungicide, and is occasionally used in food preservation as a preservative and anti-fermentation agent. Industrially, sodium fluoride is integral in the production of ceramics, enamel, coated paper, and frosted glass. It plays a crucial role in mineral processing by acting as a depressant in the beneficiation of non-sulfide minerals and during the separation of zirconium-titanium minerals. Medically, sodium fluoride promotes the activity of osteoblasts, aiding in bone formation, making it a nonhormonal bone-forming agent when coupled with calcium supplementation. However, careful management of its dosage is essential due to its narrow therapeutic window in osteoporosis treatment. Sodium fluoride's expansive range of uses underscores its significance as a versatile and vital chemical reagent.
Color/Form
Colorless, cubic or tetragonal crystals;White powder or colorless crystals [Note: Pesticide grade is often dyed blue].
Covalently-Bonded Unit Count
2
MeSH Entry Terms
Fluoride, Sodium;Fluorides, Sodium;Fluoristat;Fluoristats;Ossin;Ossins;Sodium Fluoride;Sodium Fluorides;Zymafluor;Zymafluors
Monoisotopic Mass
41.988172g/mol
Other Experimental
Aq soln have alkaline reaction caused by partial hydrolysis; aq soln etch glass;VP: 1 mm Hg at 1077 °C;All alkali fluorides, with the exception of the lithium salt, absorb hydrogen fluoride to form acid fluorides of the type MHF2 where M is the alkali metal.
Stability
Stable. Hydrolyzed by water. Reacts with mineral acids to generate highly toxic hydrogen fluoride. Incompatible with glass.
UN Number
1690;1690;1690;1690;1690
Vapor Pressure
1.4 mm Hg ( 0 °C)