Salts & Minerals
REACH
Lithium fluoride
CAS Number
7789-24-4
EC Number
232-152-0
Abbreviation
LiF
What is Lithium fluoride?
Lithium fluoride (CAS 7789-24-4), commonly abbreviated as LiF, is an inorganic salt sourced for metallurgical, optical, and electronics manufacturing processes.
Where is Lithium fluoride used?
- Aluminum and beryllium metallurgy: flux that lowers melting points and improves melt flow during smelting and casting
- Electronics: raw material for optical components such as X-ray and UV transmission windows, where its low atomic number and wide transmission range are critical
- Polymer and plastics processing: catalyst or catalyst precursor in polymerization and esterification reactions
- Flame retardant formulations for textiles and paper: contributes to char formation and combustion suppression
- It also functions as a flux agent, catalyst component, and flame retardant.
Commercial specifications
- Standard commercial grades include technical grade and high-purity optical or electronic grades
- Purity levels typically ranging from 98% to 99.9%+
Other Names (Synonyms)
Lithium monofluoride|Lithium fluoride (LiF)|Lithium fluorure|TLD 100|NTL 50|TLD 700|1485XST65B|LiF
What are the physical properties of Lithium fluoride?
Melting Point 848 °C
Boiling Point 1681 °C
Density 2.640 g/cm³ @ Temp: 20 °C
Flash Point 1680°C
Appearance White powder
Color White to off-white
Form random crystals
Water Solubility 0.29 g/100 mL (20 ºC)
Vapor Pressure 0Pa at 25℃
Refractive Index 1.3915
pH 6.0-8.5 (25℃, 0.01M in H2O)
Log P 0.23 at 25℃
How is Lithium fluoride classified and handled safely? Learn More
Danger
GHS06· Toxic GHS07· Irritant GHS08· Health Hazard
Hazard Statements
H301 Toxic if swallowed
H302 Harmful if swallowed
H315 Causes skin irritation
H319 Causes serious eye irritation
Precautionary Statements
P203 Obtain, consult and follow expert instructions for use.
P260 Do not breathe dust/fume/gas/mist/vapours/spray.
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P263 Avoid contact during pregnancy and while nursing.
Which trade and regulatory codes apply to Lithium fluoride?
HS Code 28261900
UN Number 3288
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) 2