The Lithium fluoride (6LiF), with the CAS registry number 14885-65-5, is also known as Fluorolithium. Its EINECS registry number is 238-958-9. This chemical's molecular formula is FLi and molecular weight is 26.01. What's more, its IUPAC name is the same with its product name. Lithium fluoride (6LiF) is the lithium salt of hydrofluoric acid. This white solid is a simple ionic compound. Its structure is analogous to that of sodium chloride, but it is much less soluble in water. It is mainly used as a component of molten salts and used in specialized UV optics. This chemical forms the basic constituent of the preferred fluoride salt mixture used in liquid-fluoride nuclear reactors. 

Physical properties about Lithium fluoride (6LiF)are: (1)#H bond acceptors: 0; (2)#H bond donors: 0; (3)#Freely Rotating Bonds: 0; (4)Polar Surface Area: 0 Å²; (5)Density: 2.635 g/cm³; (6)Melting Point: 845 °C; (7)Boiling Point: 1676 °C at 760 mmHg.

You can still convert the following datas into molecular structure:
(1) SMILES: [Li+].[F-]
(2) InChI: InChI=1S/FH.Li/h1H;/q;+1/p-1
(3) InChIKey: PQXKHYXIUOZZFA-UHFFFAOYSA-M