Home Categories Inorganic chemistry Lithium fluoride
A5253012

Lithium fluoride , 99.9%metalsbasis , 7789-24-4

Synonym(s):
Fluorolithium;Lithium fluoride

CAS NO.:7789-24-4

Empirical Formula: FLi

Molecular Weight: 25.94

MDL number: MFCD00011090

EINECS: 232-152-0

Update time: 2022-07-08

PRODUCT Properties

Melting point: 845 °C (lit.)
Boiling point: 1681 °C
Density  2.64 g/mL at 25 °C (lit.)
vapor pressure  0Pa at 25℃
refractive index  1.3915
Flash point: 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
Specific Gravity 2.635
PH 6.0-8.5 (25℃, 0.01M in H2O)
Water Solubility  0.29 g/100 mL (20 ºC)
Sensitive  Hygroscopic
λmax λ: 260 nm Amax: ≤0.01
λ: 280 nm Amax: ≤0.01
Crystal Structure NaCl type
crystal system Cube
Merck  14,5531
Solubility Product Constant (Ksp) pKsp: 2.74
Space group Fm3m
Lattice constant
a/nmb/nmc/nmα/oβ/oγ/oV/nm3
0.40260.40260.40269090900.06527

Exposure limits ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
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.
InChIKey PQXKHYXIUOZZFA-UHFFFAOYSA-M
LogP 0.23 at 25℃
CAS DataBase Reference 7789-24-4(CAS DataBase Reference)
NIST Chemistry Reference Lithium fluoride(7789-24-4)
EPA Substance Registry System Lithium fluoride (7789-24-4)

Description and Uses

lithium fluoride is a strong irritant to the eyes and skin; potassium bromide is toxic by ingestion and inhalation; sodium chloride is table salt, a medical concern when ingested in excess, but certainly of no significant hazard to emergency responders.

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.

Safety

Symbol(GHS) 
GHS06
Signal word  Danger
Hazard statements  H301-H315-H319-H335
Precautionary statements  P301+P310+P330-P302+P352-P305+P351+P338
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
10-21
Hazard Note  Toxic
TSCA  Yes
HazardClass  6.1
PackingGroup  III
HS Code  28261900
Hazardous Substances Data 7789-24-4(Hazardous Substances Data)
Toxicity LD in guinea pigs (mg/kg): 200 orally, 2000 s.c. (Waldbott)

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