Sodium Fluoride CAS#7681-49-4

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

Odor

Odorless

PH

7.0-10.0 (25℃, 0.5M in H2O)

Water Solubility 

4 g/100 mL (25 ºC)

Sensitive 

Hygroscopic

Crystal Structure

NaCl type

crystal system

Cube

Merck 

14,8618

Space group

Fm3m

Lattice constant

a/nmb/nmc/nmα/oβ/oγ/oV/nm30.46330.46330.46339090900.09945

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.

Cosmetics Ingredients Functions

ORAL CARE
ANTIPLAQUE

InChI

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

InChIKey

PUZPDOWCWNUUKD-UHFFFAOYSA-M

SMILES

[F-].[Na+]

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)

Safety Information

Risk Statements 

25-32-36/38-22

Safety Statements 

23-24/25-45-36-22

RIDADR 

UN 1690 6.1/PG 3

OEB

B

OEL

TWA: 2.5 mg/m3 [*Note: The REL also applies to other inorganic, solid fluorides (as F).]

WGK Germany 

1

RTECS 

WB0350000

F 

10

Hazard Note 

Toxic/Hygroscopic

TSCA 

TSCA listed

HS Code 

2826 19 10

HazardClass 

6.1

PackingGroup 

III

Storage Class

6.1D - Non-combustible acute toxic Cat.3
toxic hazardous materials or hazardous materials causing chronic effects

Hazard Classifications

Acute Tox. 3 Oral
Eye Irrit. 2
Skin Irrit. 2

Hazardous Substances Data

7681-49-4(Hazardous Substances Data)

Toxicity

LD50 orally in rats: 0.18 g/kg (Smyth)