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Lithium fluoride

Properties, data and information sources.

 

Contents

Lithium fluoride is an inorganic chemical compound from the group of fluorides.

 

Names and Identifiers

Name
Lithium fluoride
Formula
FLi
LiF
Molar mass
25.938 (g/mol)
CAS registry number
7789-24-4
EC number EINECS
232-152-0
InChI Key
PQXKHYXIUOZZFA-UHFFFAOYSA-M

Other names, synonyms
Lithium monofluoride; Fluorolithium

INCI name
LITHIUM FLUORIDE

 

Chemical formulas

Molecular formula and structural formula of Lithium fluoride:

 

FLi oder LiF

Mr = 25.9384 g/mol
SMILES: [Li+].[F-]

 

Data and Properties

In its pure state, lithium fluoride is an odorless, bitter-salty-tasting, hygroscopic, white powder or in the form of colorless crystals.

solubility:
+ Soluble in hydrogen fluoride>.
- Slightly soluble in water (1.27 g/L at 18 °C; 1.34 g/L at 25 °C); insoluble in alcohol.
  solubility product: 1.84 × 10-3.
melting point
845 °C
boiling point
1676 °C
density
2.635 g cm-3 at 20 °C
permittivity
ε = 9.0
(dielectric constant)
magnetic susceptibility χ
-10.1 × 10-6 cm3 mol-1
crystal structure:
Face-centered cubic: space group Fm3m, No. 225 with a = 403.51 pm, Z = 6.

 

Spectroscopic data:

SpectraBase (NMR, IR, FTIR, Raman, UV-Vis, MS ... spectra)
EJfOsmLZFPe

 

Percentage and isotopic composition:

Mass-related elemental composition and isotope proportions of the compound Lithium fluoride - FLi - calculated based on molecular mass.

Symbol
Element E
Number x
of atoms Ex
Data of the element
and isotopes *
Percentages
of isotopes
Percentage of
Ex in formula mass
F
Fluorine
1ΣAr = 18.998403163 u
19F: 18.9984 u [100 %]
 
19F: 73.24431 %
73.2443 %Li
Lithium
1ΣAr = 6.94 u
6Li: 6.01512 u [4,85 %]
7Li: 7.016 u [95,15 %]
 
6Li: 1.29765 %
7Li: 25.45804 %
26.7557 %

*) The third column lists the atomic masses or isotope masses of the elements involved and - in square brackets - the natural isotope composition.

 

More calculated data

The molar mass is M = 25.938403163 grams per mole.

The amount of substance in one kilogram of the substance is n = 38.553 mol.

The amount of substance in one gram of the substance is n = 0.039 mol.

Monoisotopic mass: 26.014406603 Da - related to 19F7Li.

 

Occurrence

Naturally occurring lithium fluoride is a rare mineral known as griceite.

 

Use in Cosmetics

INCI Name: LITHIUM FLUORIDE

Lithium fluoride is an approved ingredient in cosmetic products in the EU in the function of a buffering and oral care component, e.g. B. in toothpaste.

Source: CosIng (Cosmetic Ingredient Database) number: 100023.

 

Hazard warnings according to GHS

(General information without guarantee of accuracy and completeness! The information does not replace the chemical safety data sheet or a risk assessment, but rather provides a general overview of the risk posed by the hazardous substance.

Signal word: Danger

GHS hazard statements (H phrases):


H301
Toxic if swallowed

H302
Harmful if swallowed

H315
Causes skin irritation

H319
Causes serious eye irritation

H335
May cause respiratory irritation

H360
May damage fertility or the unborn child

LD50 (rat, oral): 143 mg/kg.


Labeling in the EU: See ECHA Substance Infocard 100.029.229.


Note: The labeling requirement according to the CLP Regulation (EU) does not apply, among other things, to certain substances and mixtures for end users that are in the form of finished products, such as pharmaceuticals, veterinary drugs, cosmetics, certain medical products and medical devices, food or feed, as well as certain Food additives or flavorings. Special legal regulations may need to be adhered to here.

 

External Sources

PubChem:ID 224478ChemSpider:ID 23007UNII of the FDA (USA):Unique Ingredient Identifier 1485XST65BEPA CompTox Chemicals Dashboard:DTXSID10894119Other CAS RN:12285-65-3; 40619-18-9; 64975-45-7; 2018280-05-0; 2103998-61-2; 2252328-00-8; 2624249-90-5 (also used, outdated or deleted registration numbers)

 

Manufacturers and Sources of Supply

The table below lists producers and suppliers of Lithium fluoride as a commercial chemical for laboratories, research, industry and production with the corresponding contact details.

 

Literature Sources

[0] - Specialist and research articles in scientific journals via PubMed: Lithium+fluoride.

 


More Chemistry

isotopes

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Last update: 2024-09-24


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