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  Sodium fluoride (USP28)

Product description

NaF
Molecular weight: 41.99
CAS-No.: 7681-49-4
Sodium fluoride (compliant with limits of USP 28) is used for Dental applications as active fluoro-component for tooth decay prevention in toothpaste, chewing gum, mouth rinsing agent, dental floss (impregnation), drinking water fluoridation and other dentifrices.

Physical properties (values from Literature)

Molecular weight 41.99                                  
Appearance white powder
Density (20°C) 2.8 g/cm3
Bulk density 1300 – 1700 g/L
Melting point 992°C
Solubility in water 42/L (at 20°C)

Specification

NaF (assay) min 98%                                                 
H2SiF6 test passed
H2O2 (150°C/3h) max 1%
Heavy metal  max 0.003%
Organic Volatile Impurities test passed
Acidity test passed
Sodium test passed
Fluoride test passed

Product complies with the limits of the physico-chemical specifications of USP 28.

 

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Date of last update: 2/3/2010