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Merck

SX0550

Sodium Fluoride

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

Synonym(s):

Sodium Fluoride, Disodium Fluoride

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About This Item

Empirical Formula (Hill Notation):
FNa
CAS Number:
7681-49-4
Molecular Weight:
41.99
UNSPSC Code:
12352302
EC Index Number:
231-667-8
MDL number:
MFCD00003524
assay:
≥99.5% (precipitation titration)
grade:
ACS reagent
form:
crystals
solubility:
soluble 42 g/L

Product Name

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

SMILES string

[Na+].[F-]

InChI

1S/FH.Na/h1H;/q;+1/p-1

InChI key

PUZPDOWCWNUUKD-UHFFFAOYSA-M

grade

ACS reagent

agency

meets USP/NF

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 (SO42-): ≤0.01%
sulfite (SO32-): ≤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

Quality Level

200

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

Application

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

pictograms

Skull and crossbones
GHS06

signalword

Danger

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

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

Certificates of Analysis (COA)

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