Lithium Fluoride Battery Grade 99.99% CAS 7789-24-4 Supplier

📌 Product Overview

Chemical formula: LiF | Molecular weight: 25.94 | CAS number: 7789-24-4

Appearance: white crystalline powder (cubic system, NaCl type structure)

Key features:

High melting point: 842℃ (resistant to high temperature electrolysis environment)

Transmittance: 0.12~8.5μm UV-infrared band transmittance (core indicator of optical devices)

Solubility: 0.29g/100mL water (20℃), soluble in acid

Hazard level: UN 3288 (Class 6.1 toxic substances), professional packaging and transportation required

⚡ Core applications and technological advantages

1. 🔋 Revolutionary materials for new energy batteries

Solid electrolytes: inhibit lithium dendrites and improve ionic conductivity (suitable for lithium metal negative electrode batteries)

Precursor synthesis: preparation of lithium hexafluorophosphate (LiPF₆), purity ≥ 99.99%

Nanotechnology: 20nm particle size lithium fluoride improves SEI film stability and extends cycle life by 300%

2. 🔭 Core components of high-end optical devices

Ultraviolet window materials: refractive index 1.3915, used for deep ultraviolet lasers and space telescope lenses

X-ray monochromator: crystal purity > 99.99%, reducing scattering losses

3. ☢️ Key auxiliary materials for nuclear energy technology

Neutron shielding: enriched ⁶Li isotopes (capture thermal neutron cross section up to 940 barn)

Molten salt reactor solvents: resistant to radiation decomposition, suitable for the fourth generation nuclear reactor design

4. 🏭 Industrial efficiency enhancement application

Aluminum electrolysis additive: reduce molten salt viscosity, increase current efficiency by 15%

Special glass fluxing: reduce glaze sintering temperature to 720℃ (energy saving solution)

Technical Parameters

Test items	Industrial grade (≥99%)	Battery grade (≥99.5%)	Optical grade (≥99.99%)	Method
Main content	≥99.0%	≥99.5%	≥99.99%	ICP-MS
Sodium (Na)	≤0.01%	≤0.005%	≤0.0005%	AAS
Iron (Fe)	≤50ppm	≤10ppm	≤1ppm	UV-Vis
Moisture	≤0.20%	≤0.05%	≤0.01%	Karl Fisher
Particle size D50	≤10μm	≤5μm	≤1μm	Laser Diff

❓ FAQ section

Q1: What are the core differences between battery-grade and optical-grade lithium fluoride?

→ Impurity control: optical-grade Fe≤1ppm (battery-grade ≤10ppm), Na≤0.0005% (battery-grade ≤0.005%)

Q2: How to avoid the risk of hydrofluoric acid corrosion during operation?

→ Strict moisture-proof: operate in an environment with humidity <40%, and neutralize with lime water in case of leakage (glass containers are prohibited)