SoleChem

Sodium fluoride

CAS
7681-49-4
EC
231-667-8
Mol. Weight
41.9881724 g/mol

Description

Sodium fluoride (CAS 7681-49-4), also sold under the name Floridine, is an inorganic salt sourced for its biocidal, flux, and fluoridating properties across industrial and pharmaceutical supply chains.

NaF functions as a preservative, pH buffer, and fluoride source in applications ranging from water treatment to pharmaceutical manufacturing. In water treatment, NaF is dosed as a fluoridation agent.

This chemical is used to adjust fluoride levels in municipal drinking water systems. Pharmaceutical and oral care formulators use it as the active fluoride source in toothpaste, mouth rinse, and topical dental preparations.

In the textile, leather, and paper industries, it acts as a preservative and biocide to prevent microbial degradation during processing and storage. This ensures long-term stability for various raw materials.

Building and construction applications include its use as a flame retardant additive and wood preservative treatment against fungi and insects. It provides essential protection for structural components.

Sodium fluoride is available as a white crystalline powder or fine granules. Standard supply grades include USP, BP, and Ph. Eur. for pharmaceutical applications, alongside technical grade for industrial use.

Purity levels typically range from 97% technical grade up to 99%+ for pharmaceutical-grade material. These high standards ensure the product meets the rigorous demands of global chemical manufacturing.

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Physical Properties

Melting Point 993 °C
Boiling Point 1704 °C
Density 2.78 g/cm³
Flash Point 1704°C
Appearance Sodium fluoride is a white powder or colorless crystals. Often used in a solution. Odorless. Pesticide grade is often dyed blue.
Color White to off-white
Odor Odorless
Form powder
Water Solubility 4 g/100 mL (25 ºC)
Vapor Pressure 1.4 mm Hg ( 0 °C)
Refractive Index 1.336
pH 7.0-10.0 (25℃, 0.5M in H2O)

Safety & Handling (Learn More)

Danger GHS06 GHS07 GHS05 GHS08
Hazard Statements
H301 Toxic if swallowed
H314 Causes severe skin burns and eye damage
H315 Causes skin irritation
H318 Causes serious eye damage
H319 Causes serious eye irritation
H341 Suspected of causing genetic defects
H361 Suspected of damaging fertility or the unborn child
H370 Causes damage to organs
H372 Causes damage to organs through prolonged or repeated exposure
H373 May causes damage to organs through prolonged or repeated exposure
H402 Harmful to aquatic life
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P264 Wash … thoroughly after handling.
P270 Do not eat, drink or smoke when using this product.
P273 Avoid release to the environment.
P280 Wear protective gloves/protective clothing/eye protection/face protection.
P316 Get emergency medical help immediately.
P317 Get emergency medical help.
P318 IF exposed or concerned, get medical advice.
P319 Get medical advice/attention if you feel unwell.
P321 Specific treatment (see … on this label).
P330 Rinse mouth.
P363 Wash contaminated clothing before reuse.
P405 Store locked up.
P501 Dispose of contents/container in accordance with local regulations.
P264+P265 Wash … thoroughly after handling.
P301+P316 Get emergency medical help immediately.
P302+P352 IF ON SKIN: Wash with plenty of water.
P304+P340 IF INHALED: Remove person to fresh air and keep comfortable for breathing.
P308+P316 Get emergency medical help immediately.
P332+P317 Get emergency medical help.
P337+P317 If eye irritation persists: Get medical advice/attention. Get emergency medical help.
P362+P364 Take off contaminated clothing and wash it before reuse.
P301+P330+P331 Rinse mouth. Do NOT induce vomiting.
P302+P361+P354 IF ON SKIN: Take off immediately all contaminated clothing. Rinse skin with water/shower.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P305+P354+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.

Trade & Regulatory

HS Code 28261900
UN Number 1690
ADR Class 6.1
Packing Group III
Storage Class 6.1D - Non-combustible acute toxic Cat.3 toxic hazardous materials or hazardous materials causing chronic effects
WGK (Germany) 1

Documentation

Other Names

sodium monofluoride|floridine|NaF|Fluoride, sodium|Sodium fluoride (NaF)|Florocid|Zymafluor|Pediaflor

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