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7789-24-4

Name Lithium fluoride
CAS 7789-24-4
EINECS(EC#) 232-152-0
Molecular Formula FLi
MDL Number MFCD00011090
Molecular Weight 25.94
MOL File 7789-24-4.mol
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Chemical Properties

Appearance White powder
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
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
Specific Gravity 2.635
PH 6.0-8.5 (25℃, 0.01M in H2O)
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.
Water Solubility  0.29 g/100 mL (20 ºC)
Sensitive  Hygroscopic
λmax λ: 260 nm Amax: ≤0.01
λ: 280 nm Amax: ≤0.01
Merck  14,5531
Solubility Product Constant (Ksp) pKsp: 2.74
Exposure limits ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
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 7789-24-4(EPA Substance)
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Safety Data

Hazard Codes  T
Risk Statements 
R25:Toxic if swallowed.
R32:Contact with acids liberates very toxic gas.
R36/37/38:Irritating to eyes, respiratory system and skin .
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
Safety Statements 
S22:Do not breathe dust .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection .
S45:In case of accident or if you feel unwell, seek medical advice immediately (show label where possible) .
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
Safety Profile
Poison by ingestion and subcutaneous routes. When heated to decomposition it emits toxic fumes of F-. Used as a flux in enamels, glasses, glazes, and weldmg. See also FLUORIDES and LITHIUM COMPOUNDS.
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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