Lithium Hexafluorophosphate, Lithium Hexa Fluoro Phosphate, Lithium Phosphorus Fluoride, 21324‑40‑3

Lithium Hexafluorophosphate, Lithium Hexa Fluoro Phosphate, Lithium Phosphorus Fluoride, 21324‑40‑3

CAS 21324‑40‑3 corresponds to Lithium hexafluorophosphate (LiPF₆), a white crystalline salt widely used as the electrolyte in lithium‑ion batteries. It is highly sensitive to moisture and decomposes at elevated temperatures, releasing HF.

📑 Audit‑Ready Profile — Lithium Hexafluorophosphate (LiPF₆)

1. Quick Facts

• CAS No: 21324‑40‑3

• Chemical Formula: LiPF₆

• Molecular Weight: 151.91 g/mol

• Density: ~1.5 g/cm³

• Melting Point: ~200 °C (decomposes)

• Appearance: White crystalline powder

• Solubility: Slightly soluble in water; soluble in organic carbonates (EC, DMC, DEC)

2. Technical Properties

• Form: Powder, hygroscopic

• Stability: Stable under inert atmosphere; hydrolyzes rapidly in presence of moisture

• Flash Point: ~25 °C

• Storage: Must be kept in dry, inert atmosphere (argon/nitrogen)

3. Applications

• Lithium‑ion Batteries: Primary electrolyte salt, dissolved in carbonate solvents (EC/DMC/DEC).

• Electrochemistry: Provides Li⁺ ions for charge transport.

• Research: Used in advanced battery R&D for high‑energy density cells.

4. Sector Suitability Table

5. Safety & MSDS Summary

• Hazards: Corrosive, moisture‑sensitive, releases HF upon hydrolysis

• PPE: Gloves, goggles, respirator

• Handling: Strictly under dry inert atmosphere

• Waste: Hazardous; dispose via licensed facilities

6. Market & Commercial Info

• Purity Grades: ≥97%, ≥98%, ≥99.9% (battery grade)

• Packaging: Sealed containers, often stainless steel for bulk battery electrolyte supply

• Producer Regions: China, Japan, USA, Europe

• Trade Names: LiPF₆, Purelyte, Powerlyte

📑 Other Names / Synonyms

• Lithium phosphorus fluoride

• Lithium salt of hexafluorophosphoric acid

• LiPF₆ (common abbreviation)

• Hexafluoro‑, lithium (systematic descriptor)

• Regulatory Identifiers:

  • PubChem CID: 23688915

  • ChEBI: CHEBI:172376

  • ECHA InfoCard: 100.040.289

  • UNII: T9T8DY51J3

  • EINECS Number: 244‑334‑7

📊 Notes

• IUPAC Name: Lithium hexafluorophosphate

• Commercial Names: Sometimes marketed under trade names like Purelyte or Powerlyte (battery‑grade electrolyte solutions).

• Usage Context: Most commonly referenced simply as LiPF₆ in battery industry literature.