page_banner

product

Lithium fluoride(CAS#7789-24-4)

Chemical Property:

Molecular Formula FLi
Molar Mass 25.94
Density 2.64 g/mL at 25 °C (lit.)
Melting Point 845 °C (lit.)
Boling Point 1681 °C
Flash Point 1680°C
Water Solubility 0.29 g/100 mL (20 ºC)
Solubility Soluble in 0.29 g/100 mL (20°C) and hydrogen fluoride. Insoluble in alcohol.
Vapor Presure 0Pa at 25℃
Appearance random crystals
Specific Gravity 2.635
Color White to off-white
Exposure Limit ACGIH: TWA 2.5 mg/m3NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
Solubility Product Constant(Ksp) pKsp: 2.74
Maximum wavelength(λmax) ['λ: 260 nm Amax: ≤0.01',
, 'λ: 280 nm Amax: ≤0.01']
Merck 14,5531
PH 6.0-8.5 (25℃, 0.01M in H2O)
Storage Condition Store at +5°C to +30°C.
Stability Stable, but hygroscopic. Hydrolyzes in the presence of water to form hydrofluoric acid, which attacks glass – don’t store in glass bottles. Incompatible with aqueous solutions, strong acids, oxide
Sensitive Hygroscopic
Refractive Index 1.3915
Physical and Chemical Properties Lithium fluoride is white powder, sodium chloride type crystal structure. Relative density 2.640, melting point 848 ℃, boiling point 1673 ℃. At 1100~1200 degrees began to volatilize, the vapor is alkaline. Lithium fluoride is slightly soluble in water and insoluble in alcohol and other organic solvents. At room temperature, Lithium fluoride is soluble in nitric acid and sulfuric acid, but insoluble in hydrochloric acid, with hydrofluoric acid Li2HF acid salt formation.
Use Used as additives for aluminum electrolysis and rare earth electrolysis, optical glass manufacturing, desiccant, flux, etc

Product Detail

Product Tags

Hazard Symbols T – Toxic
Risk Codes 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 Description 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 the label whenever possible.)
UN IDs UN 3288 6.1/PG 3
WGK Germany 2
RTECS OJ6125000
FLUKA BRAND F CODES 10-21
TSCA Yes
HS Code 28261900
Hazard Note Toxic
Hazard Class 6.1
Packing Group III
Toxicity LD in guinea pigs (mg/kg): 200 orally, 2000 s.c. (Waldbott)

 

Introduction

The following is an introduction to the properties, uses, preparation methods and safety information of lithium fluoride:

 

Quality:

1. Lithium fluoride is a white crystalline solid, odorless and tasteless.

3. Slightly soluble in water, but soluble in alcohols, acids and bases.

4. It belongs to ionic crystals, and its crystal structure is body-centered cube.

 

Use:

1. Lithium fluoride is widely used as a flux for metals such as aluminum, magnesium, and iron.

2. In the nuclear and aerospace sectors, lithium fluoride is used as a material for the manufacture of reactor fuel and turbine blades for turbine engines.

3. Lithium fluoride has a high melting temperature, and it is also used as a flux in glass and ceramics.

4. In the field of batteries, lithium fluoride is an important raw material for the manufacture of lithium-ion batteries.

 

Method:

Lithium fluoride is usually prepared by the following two methods:

1. Hydrofluoric acid method: hydrofluoric acid and lithium hydroxide are reacted to generate lithium fluoride and water.

2. Hydrogen fluoride method: hydrogen fluoride is passed into lithium hydroxide solution to generate lithium fluoride and water.

 

Safety Information:

1. Lithium fluoride is a corrosive substance that has an irritating effect on the skin and eyes, and should be avoided during use.

2. When handling lithium fluoride, appropriate protective gloves and goggles should be worn to prevent accidental contact.

3. Lithium fluoride should be kept away from ignition sources and oxidants to avoid fire or explosion.

 


  • Previous:
  • Next:

  • Write your message here and send it to us