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Lithium fluoride

Description References

CAS No. 7789-24-4
Chemical Name: Lithium fluoride
Synonyms: ntl50;NTL 50;tld100;tld700;TLD 100;TLD 700;LT-E001;Fluorolithium;Lithiumfluorid;lithiumfluorure
CBNumber: CB5854343
Molecular Formula: FLi
Formula Weight: 25.94
MOL File: 7789-24-4.mol
Lithium fluoride Property
Melting point : 845 °C(lit.)
Boiling point : 1681 °C
density : 2.64 g/mL at 25 °C(lit.)
refractive index : 1.3915
Fp : 1680°C
storage temp. : Store at +5°C to +30°C.
solubility : Soluble in 0.29 g/100 mL (20°C) and hydrogen fluoride. Insoluble in alcohol.
form : random crystals
color : White to off-white
PH: 6.0-8.5 (25℃, 0.01M in H2O)
Water Solubility : 0.29 g/100 mL (20 ºC)
Sensitive : Hygroscopic
Merck : 14,5531
Stability:: Stable, but hygroscopic. Hydrolyzes in the presence of water to form hydrofluoric acid, which attacks glass - do not store in glass bottles. Incompatible with aqueous solutions, strong acids, strong oxidizing agents.
CAS DataBase Reference: 7789-24-4(CAS DataBase Reference)
NIST Chemistry Reference: Lithium fluoride(7789-24-4)
EPA Substance Registry System: Lithium fluoride (LiF)(7789-24-4)
  • Risk and Safety Statements
  • Hazard and Precautionary Statements (GHS)
Hazard Codes : T
Risk Statements : 25-32-36/37/38-23/24/25
Safety Statements : 22-26-36/37/39-45
RIDADR : UN 3288 6.1/PG 3
WGK Germany : 2
RTECS : OJ6125000
F : 10-21
Hazard Note : Toxic
TSCA : Yes
HazardClass : 6.1
PackingGroup : III
HS Code : 28261900
Hazardous Substances Data: 7789-24-4(Hazardous Substances Data)
Signal word: Danger
Hazard statements:
Code Hazard statements Hazard class Category Signal word Pictogram P-Codes
H301 Toxic if swalloed Acute toxicity,oral Category 3 Danger P264, P270, P301+P310, P321, P330,P405, P501
H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362
H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P
H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:
P261 Avoid breathing dust/fume/gas/mist/vapours/spray.
P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.
P405 Store locked up.

Lithium fluoride Chemical Properties,Usage,Production

Lithium Fluoride (LiF) has the lowest refractive index of all common infrared materials. It possesses the highest UV transmission of any material, being able to transmit significantly into the VUV region at the hydrogen Lyman-alpha line (121nm). Lithium fluoride can be applied in rechargeable Li batteries, in radiation dosimeter for personnel monitoring as well as radiation research, as an optical material, as a heat sink material, to produce ceramics, and to dissolve fluid fuel for molten salt reactors.
[1] H. Li, G. Richter, J. Maier, Reversible Formation and Decomposition of LiF Clusters Using Transition Metal Fluorides as Precursors and Their Application in Rechargeable Li Batteries, Advanced Materials, 2003, vol. 15, 736-739
[2] J. R. Cameron, F. Daniels, N. Johnson, G. Kenney, Radiation Dosimeter Utilizing the Thermoluminescence of Lithium Fluoride, Science, 1961, vol. 134, 333-334
[3] E. T. Kvamme, J. C. Earthman, D. B. Leviton, B. J. Frey, Lithium fluoride material properties as applied on the NIRCam instrument, Proc. SPIE 59,4, 2005
[4] Y. Kogure, H. Kaburaki, Y. Hiki, Low-Temperature Thermal Properties of Lithium Fluoride Containing Dislocations, Phonon Scattering in Condensed Matter, 1979, 267-270
[5] H. Naghib-zadeh, C. Glizky, I. D?rfel, T. Rabe, Low temperature sintering of barium titanate ceramics assisted by addition of lithium fluoride-containing sintering additives, Journal of the European Ceramic Society, 2010, vol. 30, 81-86
[6] M. W. Rosenthal, P. R. Kasten, R. B. Briggs, Molten-Salt Reactors – History, Status, and Potential, 1970, vol. 8, 107-117
Chemical Properties
White powder
The important uses of lithium fluoride are as flux in glasses, vitreous enamels and glazes; in soldering and welding aluminum; and its prisms in infrared spectrophotometers. The compound also is used for storing solar energy.
Lithium fluoride is prepared by treating an aqueous solution of lithium hydroxide or lithium carbonate with aqueous hydrofluoric acid: LiOH + HF → LiF + H2O.
Lithium fluoride Preparation Products And Raw materials
Raw materials
Lithium carbonate Hydrofluoric acid
Preparation Products
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