SX0550

Sodium Fluoride

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

• Synonym(s): Sodium Fluoride, Disodium Fluoride
• Empirical Formula (Hill Notation): FNa
• CAS Number: 7681-49-4
• Molecular Weight: 41.99
• MDL number: MFCD00003524
• UNSPSC Code: 12352302
• EC Index Number: 231-667-8

Properties

• agency: meets USP/NF
• Quality Level: 200
• vapor pressure: 1 hPa ( 1077 °C)
• assay: ≥99.5% (precipitation titration)
• form: crystals
• impurities: ≤0.01% Insoluble matter; ≤0.04% Free alkali (as NaOH); ≤0.05% Free acid (as hydrofluoric acid); ≤0.1% Sodium fluosilicate (Na₂SiF₆)
• loss: ≤0.2% loss on drying, 150°C
• pH: 10.2 (20 °C, 40 g/L in H₂O)
• mp: 996 °C
• solubility: soluble 42 g/L
• anion traces: chloride (Cl^-): ≤0.003%; sulfate (SO₄^2-): ≤0.01%; sulfite (SO₃^2-): ≤0.005%
• cation traces: Cu: ≤0.0002%; Fe: ≤0.002%; K: ≤0.02%; heavy metals (as Pb): ≤0.001%
• shipped in: ambient
• storage temp.: room temp
• InChI: 1S/FH.Na/h1H;/q;+1/p-1
• InChI key: PUZPDOWCWNUUKD-UHFFFAOYSA-M

Description

Application

Meets ACS Specifications, Meets Reagent Specifications for testing USP/NF monographs GR ACS

Analysis Note

Assay (precipitative titration)99.5% minChloride (Cl)0.003% maxCopper (Cu)0.0002% maxFree acid (as hydrofluoric acid)0.05% maxFree alkali (as NaOH)0.04% maxHeavy metals (as Pb)0.001% maxInsoluble matter0.01% maxIron (Fe)0.002% maxLoss on drying (150°C)0.2% maxPotassium (K)0.02% maxSodium fluosilicate (Na2 Si F6)0.1% maxSulfate (SO4)0.01% maxSulfite (SO2)0.005% max

Safety Information

• pictograms: GHS06
• signalword: Danger
• hcodes: H301,H315,H319
• pcodes: P264 - P280 - P301 + P310 - P302 + P352 - P305 + P351 + P338 - P332 + P313
• Hazard Classifications: Acute Tox. 3 Oral - Eye Irrit. 2 - Skin Irrit. 2
• supp_hazards: EUH032
• Storage Class: 6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• wgk_germany: WGK 1
• flash_point_f: Not applicable
• flash_point_c: Not applicable