Basic information of Lithium Fluoride
- Product Name: Lithium Fluoride
- Lithium Fluoride Molecular Formula: LiF
- Lithium Fluoride Molecular Weight: 25.939
- Lithium Fluoride Molar Mass: 25.939 g/mol
- Lithium Fluoride CAS No.: 7789-24-4
- Lithium Fluoride EINECS: 232-152-0
- Lithium Fluoride Appearance: White to off-white powder or cubic crystals
What is Lithium Fluoride?
- Lithium Fluoride belongs to the alkali metal halides.Furthermore, it is the inorganic compound with the lowest known solubility among alkali metal halides.Possesses both chemical stability and optical properties.
- Lithium Fluoride possesses an extremely broad transmission band, exhibiting excellent transmittance ranging from the deep ultraviolet to the infrared.It is an important ultraviolet optical material.
- Lithium Fluoride involves strong ionic bonding between lithium ions and fluoride ions.It maintains stable chemical properties at high temperatures, making it suitable for a wide range of high-temperature industrial environments.For example, as a flux in the electrolytic aluminum industry.
- Highassay offers Lithium Fluoride products in three forms—industrial-grade powder, battery-grade powder, and optical-grade crystals—to meet diverse requirements ranging from metallurgy to semiconductors.
Why choose Highassay？
- Highassay is a leading supplier of Lithium Fluoride raw materials based in China.Our production processes are mature, our equipment is advanced and highly automated.Helps ensure the purity and batch-to-batch consistency of Lithium Fluoride products, as well as the fulfillment of large-scale supply requirements.It can minimize your procurement risks to the greatest extent possible.
- We have our own R&D team that can assist you in solving problems encountered in the further production and processing of Lithium Fluoride.And we can provide you with customization services for Lithium Fluoride (covering both the product itself and its packaging).
- If you are an aluminum electrolysis process engineer, glaze formulator, or purchasing manager, and are currently in need of purchasing industrial-grade Lithium Fluoride.If you have a need to purchase Lithium Fluoride, please contact us. The entire Highassay team is at your service, offering a one-stop solution to address all your concerns.
- We provide a TDS, MSDS, and COA along with our products; should you require any additional specialized technical data, we will gladly provide that as well. Please purchase Highassay’s Lithium Fluoride raw materials with confidence.
Lithium Fluoride Packaging
Regardless of the grade of Lithium Fluoride raw material, Our packaging adheres to the following basic principles:
- Our packaging must be moisture-proof and hermetically sealed.
- We store our products away from light, and we hope you will do the same upon receiving them.
- Our outer packaging will bear prominent hazardous material markings.
- Industrial-Grade Lithium Fluoride: We primarily supply this product in 25 kg paper-plastic composite bags, each lined with a single-layer PE bag.
- Battery-Grade Lithium Fluoride: We primarily package this product in 25 kg cardboard drums lined with double-layer PE bags.
- Optical-Grade Lithium Fluoride: We provide 500g per bag, packaged in vacuum-sealed aluminum-plastic pouches with an outer box.
In addition to these standard packaging options, we also offer customized packaging services. Please let me know if you have any specific requirements.
Applications of Lithium Fluoride
The Three Major Application Fields of Lithium Fluoride: Industrial Grade, Battery Grade, and Optical Grade.
Industrial-Grade Lithium Fluoride
- Our industrial-grade Lithium Fluoride features a purity range of 97.5%–99%, with metallic impurities ≤0.1%–0.3% and moisture content ≤0.1%–0.3%.
- Industrial-grade Lithium Fluoride can be used as an additive in aluminum electrolysis, helping to lower the electrolyte melting point (by 10–20°C) and increase current efficiency (by 1–3%); it can also serve as a welding flux for aluminum-magnesium alloys.
- Industrial-grade Lithium Fluoride serves as a flux and nucleating agent for ceramics and glass, helping to lower sintering temperatures and enhance thermal shock resistance and corrosion resistance.
- Industrial-grade Lithium Fluoride can also be used in the preparation of other fluorides, welding electrode coatings, metallurgical fluxes, and more.
- If you are an aluminum electrolysis process engineer, glaze formulator, or purchasing manager in need of industrial-grade Lithium Fluoride, please request a quote immediately; we will provide you with competitive pricing for industrial-grade Lithium Fluoride.
Battery-Grade Lithium Fluoride
- Our purity standards for battery-grade Lithium Fluoride are: 99.9%–99.99%, Na/K/Ca/Mg ≤ 10–50 ppm, and moisture ≤ 100–300 ppm.
- Battery-grade Lithium Fluoride is utilized in the production of lithium-ion batteries; serving as an electrolyte additive, it facilitates the formation of a stable SEI layer, thereby enhancing the battery’s cycle life and safety. It also serves as a key raw material for the synthesis of lithium hexafluorophosphate (LiPF₆).
- Battery-grade Lithium Fluoride can be used to manufacture solid-state batteries; it serves as a precursor for sulfide and oxide solid electrolytes, thereby facilitating an increase in ionic conductivity.
- Battery-grade Lithium Fluoride can be used to manufacture lithium-metal batteries, which not only resolve safety issues related to short circuits but also enhance the efficiency of battery charging and discharging.
- If you are a purchaser of battery-grade Lithium Fluoride, a LiPF₆ synthesis engineer, an electrolyte R&D specialist, or a materials procurement professional for battery cell manufacturers within the new energy sector, please choose Highassay. We will supply you with Lithium Fluoride raw materials that meet rigorous battery-grade standards and provide you with a customized quotation within 24 hours.
Optical-Grade / High-Purity Lithium Fluoride
- Our optical-grade and high-purity Lithium Fluoride features a purity range of 99.99% to 99.999%+, with individual impurity levels limited to ≤0.5–5 ppm and moisture content to ≤50–100 ppm.
- Optical-grade Lithium Fluoride is utilized in the production of deep-ultraviolet windows, prisms, and lenses, finding application in lithography systems and X-ray monochromators.
- Electronic-grade Lithium Fluoride is employed in OLED/PLED electron injection layers, MLCC electronic ceramics, and semiconductor optical coatings.
- High-purity Lithium Fluoride serves as a key component in molten salt reactors (FLiBe) within the nuclear industry, as well as in neutron shielding and radiation detection materials.
- Furthermore, high-purity Lithium Fluoride is applicable in MXene synthesis, perovskite solar cells, and the surface modification of solid-state electrolytes.
- If you require Lithium Fluoride raw materials of exceptional purity with strictly controlled impurity levels, please contact us; we will promptly provide you with samples and a quotation.
Specifications of Lithium Fluoride
- Specifications of Lithium Fluoride
- Specifications of Lithium Fluoride
| Item | Specification | Test Method |
| Assay (LiF) | 99.9% – 99.99% | Difference Method / Ion Chromatography |
| Sodium (Na) | ≤10 – 50 ppm | ICP-MS |
| Potassium (K) | ≤10 – 50 ppm | ICP-MS |
| Calcium (Ca) | ≤10 – 50 ppm | ICP-MS |
| Magnesium (Mg) | ≤10 – 50 ppm | ICP-MS |
| Moisture (H₂O) | ≤100 – 300 ppm | Karl Fischer Method |
| Appearance | White, Free-flowing Powder | Visual Inspection |
| Item | Optical Grade / High-Purity Grade | Electronic Grade | Test Method |
| Main Content (LiF) | 99.99% – 99.999%+ | 99.99% – 99.999%+ | GDMS / ICP-MS |
| Individual Impurity Elements | ≤0.5 – 5 ppm | ≤1 – 10 ppm | GDMS / ICP-MS |
| Total Key Metals (Na/K/Ca/Mg/Fe) | ≤5 – 20 ppm | ≤10 – 50 ppm | ICP-MS |
| Moisture (H₂O) | ≤50 – 100 ppm | ≤100 ppm | Karl Fischer Titration |
| Appearance | White Crystalline Powder / Granules / Flakes | White Crystalline Powder / Granules / Flakes | Visual Inspection |
| Isotope Option | Natural Lithium / Enriched Lithium-7 (≥99.95%) | Natural Lithium | Mass Spectrometry |
What are Lithium Fluoride crystals?
Lithium Fluoride crystals are optical crystal materials prepared from high-purity Lithium Fluoride raw materials using crystal growth techniques. They are transparent to light wavelengths ranging from 0.10 to 7 µm.
Lithium Fluoride crystals are single crystals and have the highest ultraviolet transmittance of all materials.It can be fabricated into optical components.This is also one of the primary reasons why it is irreplaceable in the field of high-end optics.
Is Lithium Fluoride ionic or covalent?
Lithium Fluoride is a typical ionic compound. It is formed by the bonding of lithium ions and fluoride ions through strong attraction.This robust ionic bond structure renders Lithium Fluoride indispensable in fields such as thermal and optical applications.
How is Lithium Fluoride prepared?
Lithium Fluoride can be prepared by neutralization or metathesis.The neutralization method most commonly used in industrial production.
Neutralization Method: Lithium carbonate or lithium hydroxide is reacted and crystallized with hydrofluoric acid in a lead or platinum vessel to yield Lithium Fluoride crystalline powder.
What is Lithium Fluoride’s price?
The price of Lithium Fluoride varies significantly depending on its grade; the higher the purity and the stricter the control over impurities, the relatively higher the price.
The price of Lithium Fluoride fluctuates based on raw materials, market supply and demand, and purchase volume. For specific pricing details, please contact me immediately.
Physicochemical Properties of Lithium Fluoride
- Lithium Fluoride Melting Point: 845 °C
- Lithium Fluoride Boiling Point: 1681 °C
- Lithium Fluoride Water Solubility: Slightly soluble, 0.27 g/100 mL (20°C)
- Lithium Fluoride Density: 2.64 g/cm³
- Lithium Fluoride Bulk Density: 0.60–0.80 g/cm³ (adjustable)
- Lithium Fluoride Vapor Pressure: 0 Pa at 25°C
- Lithium Fluoride Flash Point: 1680°C
- Lithium Fluoride pH: 6.0–8.5 (25°C, 0.01 M in H₂O)
- Lithium Fluoride Refractive Index: 1.3915
- Lithium Fluoride Maximum Wavelength (λmax): λ: 260 nm, Amax: ≤0.01; λ: 280 nm, Amax: ≤0.01
- Lithium Fluoride Solubility: Slightly soluble in water; insoluble in alcohol; soluble in acids
- Lithium Fluoride Sensitivity: Hygroscopic
- Lithium Fluoride Chemical Properties: Soluble in hydrofluoric acid, forming lithium hydrogen fluoride
- Lithium Fluoride Stability: Stable under normal temperature and pressure
- Lithium Fluoride Hygroscopicity: Hygroscopic
- Lithium Fluoride Toxicity: Toxic
- Lithium Fluoride Storage Conditions: Store at +5°C to +30°C
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