CAS 7789-24-4 Lithium fluoride - Materials / Alfa Chemistry

NAVIGATION

Lithium fluoride

PRICE INQUIRY

Catalog Number

ACM7789244

CAS Number

7789-24-4

Product Name

Lithium fluoride

Structure

Category

Electrolytes; Organic Solar Cell (OPV) Materials; Substrates and Electrode Materials

Description

OtherSolid

IUPAC Name

lithium;fluoride

Molecular Weight

26g/mol

Molecular Formula

FLi;FLi

Canonical SMILES

[Li+].[F-]

InChI

InChI=1S/FH.Li/h1H;/q;+1/p-1

InChI Key

PQXKHYXIUOZZFA-UHFFFAOYSA-M

Boiling Point

1673 °C

Melting Point

848.2 °C

Density

2.640 g/cu cm

Solubility

0.134 g/100 g water at 25 °C; soluble in acid;0.27 G SOL IN 100 ML WATER @ 18 °C; INSOL IN ALCOHOL; SOL IN HYDROGEN FLUORIDE

Application

Lithium fluoride serves a versatile role in various applications due to its unique properties. Unlike other lithium halides, it is not hygroscopic and remains stable when exposed to air, which makes it particularly valuable in environments sensitive to moisture. Its low solubility compared to other alkali metal fluorides positions it closer to the alkaline earth fluorides, a feature that can be manipulated with the addition of hydrofluoric acid, converting its fluoride ions to bifluoride ions and increasing solubility. This compound plays a crucial role in the glass lining soldering process as a cosolvent and enhances the efficiency of aluminum and rare earth electrolysis. In the realm of technology, lithium fluoride's wide band gap and UV transparency make it suitable for specialized ultraviolet optics and as a crystal in X-ray spectrometry. It is essential in monitoring ionizing radiation exposure through its application in thermoluminescent dosimeters. Notably, in nuclear industries, it combines with beryllium fluoride to create a base solvent in molten-salt reactor experiments. Moreover, it enhances electron injection in polymer and organic light-emitting diodes, showcasing its importance in advancing display and lighting technologies.

Color/Form

Cubic crystals (NaCl lattice) or white fluffy powder;Fine white powder

Complexity

Covalently-Bonded Unit Count

EC Number

232-152-0;241-438-4;238-958-9

Exact Mass

26.014407g/mol

Formal Charge

Heavy Atom Count

MeSH Entry Terms

GR 200-A;GR-200-A;GR200-A;lithium fluoride;lithium fluoride, 6Li-labeled;lithium fluoride, 7Li-labeled

Monoisotopic Mass

26.014407g/mol

NSC Number

12957

Other Experimental

Volatilizes at 1100-1200 °C; with hydrofluoric acid it forms lithium bifluoride, LiHF2; with lithium hydroxide it forms a double salt LiF.LiOH;Does not react with water at red heat;Standard molar enthalpy of formation at 298.15 K: -616.0 kJ/mol; molar heat capacity at constant pressure and 298.15 K: 41.6 J/mol K;Enthalpy of fusion: 27.09 kJ/mol

Refractive Index

INDEX OF REFRACTION: 1.3915

Rotatable Bond Count

UNII

1485XST65B

Vapor Pressure

1 mm Hg at 1047 °C

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