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Sodium fluoride CAS 7681-49-4

Alcoasodiumfluoride;Sodiumfluoridepuriss.,meetsanalyticalspecificationofPh.Eur.,BP,USP,98.5-100.5%(calc.tothedriedsubstance);SodiumfluorideReagentPlus(R),>=99%;SODIUMFLUORIDEFOChemicalbookRANALYSISEMSUREACS,ISO,REAG.PHEUR;SODIUMFLUORIDEINSECTCELLCULTURE*;Sodiumfluoride,99.995%tracemetalsbasisexcludingK;Sodiumfluoride,ACS,99.0%min.;Sodiumfluoride,foranalysis,99+%
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  • 7681-49-4

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  • 7681-49-4

Sodium fluoride Basic information
Product Name: Sodium fluoride
CAS: 7681-49-4
MF: FNa
MW: 41.99
EINECS: 231-667-8
Mol File: 7681-49-4.mol
Sodium fluoride Chemical Properties
Melting point  993 °C (lit.)
Boiling point  1700 °C
density  1.02 g/mL at 20 °C
vapor pressure  1.4 mm Hg ( 0 °C)
refractive index  1.336
Fp  1704°C
storage temp.  2-8°C
solubility  H2O: 0.5 M at 20 °C, clear, colorless
form  powder
color  White to off-white
Specific Gravity 2.558
PH 7.0-10.0 (25℃, 0.5M in H2O)
Odor Odorless
Water Solubility  4 g/100 mL (25 ºC)
Sensitive  Hygroscopic
Merck  148,618
Exposure limits ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
Stability: Stable. Hydrolyzed by water. Reacts with mineral acids to generate highly toxic hydrogen fluoride. Incompatible with glass.
CAS DataBase Reference 7681-49-4(CAS DataBase Reference)
NIST Chemistry Reference Sodium fluoride(7681-49-4)
EPA Substance Registry System Sodium fluoride (7681-49-4)
Item Spec. Result
Purity(NaF) 99% 99.56%
SiO2 0.5 0.002
Acidity 10 Conformed
Alkalinity 4 Conformed
Water insoluble substance 0.1 0.0087
Sulfate content 0.05 0.003
Fluorosilicate content 0.5 0.0013
Chloride content 0.01 0.002
Pb 0.005 0.00031
Fe 0.005 0.00032

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