| Identification | More | [Name]
Lithium hexafluorophosphate | [CAS]
21324-40-3 | [Synonyms]
LITHIUM HEXAFLUOROPHOSPHATE
hexafluoro-phosphate(1-lithium
Phosphate(1-),hexafluoro-,lithium
lithium hexafluorophosphate(1-)
LITHIUM HEXAFLUOROPHOSPHATE, 99.99+%
Lithium hexafluorophosphate, pure, 98%
Lithiumhexafluorophosphate(BatteryGrade)
LITHIUM HEXAFLUOROPHOSPHATE 99%
Lithiumhexafluorophosphate,99+%
Lithiumhexafluorophosphate,H2O20ppmmax.(99.9+%-Li)
Phosphate,hexafluoro-,lithium
LITHIUM HEXAFLUOROPHOSPHATE: H2O 20PPM MAX. (99.9%-LI) BATTERY GRADE
lithium fluorophosphate
Lithium hexafluorophosphate, 98%, pure
Hexafluorophosphate·lithium | [EINECS(EC#)]
244-334-7 | [Molecular Formula]
F6LiP | [MDL Number]
MFCD00011096 | [Molecular Weight]
151.91 | [MOL File]
21324-40-3.mol |
| Chemical Properties | Back Directory | [Appearance]
white crystalline powder | [Melting point ]
200 °C (dec.) (lit.) | [density ]
1.5 | [Fp ]
25 °C | [storage temp. ]
Inert atmosphere,Room Temperature | [solubility ]
H2O: slightly soluble(lit.) | [form ]
Powder | [color ]
APHA: <50 | [Specific Gravity]
1.50 | [Stability:]
Stable, but readily hydrolyzes upon exposure to water or moist air. Incompatible with strong oxidizing agents, strong acids. | [Water Solubility ]
soluble | [Sensitive ]
Hygroscopic | [Exposure limits]
ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3 | [Uses]
Lithium hexafluorophosphate (LiPF6) is the most widely used solute in liquid and gelled-type electrolytes，which has good solubility in various solvents such as PC (propylene carbonate) . | [CAS DataBase Reference]
21324-40-3(CAS DataBase Reference) | [EPA Substance Registry System]
21324-40-3(EPA Substance) |
| Questions And Answer | Back Directory | [synthesis]
The first is the wet method. In the method, lithium salt is dissolved in
anhydrous hydrofluoric acid to form LiF·HF solution, and then PF5 gas
is introduced for reaction to produce lithium hexafluorophosphate
crystals. After separation and drying, the product is obtained; the
second is dry method. The method is to treat LiF with anhydrous HF to
form porous LiF, and then pass PF5 gas for reaction to obtain the
product. The third is the solvent method. The method is to make lithium
salt react with alkali metal salt, ammonium salt or organic amine salt
of fluorophosphoric acid in an organic solvent to crystallize, thereby
preparing lithium hexafluorophosphate product. |
| Safety Data | Back Directory | [Hazard Codes ]
C,Xi,T | [Risk Statements ]
R34:Causes burns.
R24:Toxic in contact with skin.
R22:Harmful if swallowed. | [Safety Statements ]
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 3260 8/PG 1
| [WGK Germany ]
3
| [F ]
3-10 | [Hazard Note ]
Irritant/Hygroscopic | [TSCA ]
Yes | [HazardClass ]
8 | [PackingGroup ]
II | [HS Code ]
28269020 |
| Raw materials And Preparation Products | Back Directory | [Raw materials]
Hydrogen fluoride-->Alkali Metals, plasma standard solution, Specpure, Ba,Be,Ca,Cs,K,Li,Mg,Na,Rb,Sr, 100μg/ml-->Fluorescent Brightener Pf-->LiOTFP-->LITHIUM OXALATE | [Preparation Products]
Lithium Difluorophosphate |
| Hazard Information | Back Directory | [Chemical Properties]
white crystalline powder | [Definition]
ChEBI: Lithium hexafluorophosphate is an inorganic lithium salt having hexafluorophosphate(1-) as the counterion. It is an electrolyte used in lithium-ion batteries. It contains a hexafluorophosphate(1-). | [General Description]
Lithium hexafluorophosphate solution in ethylene carbonate and ethyl methyl carbonate is a class of electrolytic solution that can be used in the fabrication of lithium-ion batteries. Lithium-ion batteries consist of anode, cathode, and electrolyte with a charge-discharge cycle. These materials enable the formation of greener and sustainable batteries for electrical energy storage. | [Flammability and Explosibility]
Nonflammable | [Battery Materials]
Lithium hexafluorophosphate (LiPF6) is the most widely used salt in the electrolytes for commercial Li-ion cells. It is commonly used as the electrolytic solution in lithium-ion rechargeable batteries. It is hydrolyzed by the small amounts of water contained in the electrolytic solution to produce fluoride and other ions.
According to the ionics studies on the limiting properties in various solvents, this excellent conductivity results from the combination of its ionic mobility and dissociation constant, although in neither category does LiPF6 stand at the most outstanding position:
Average ion mobility: LiBF4 > LiClO4 > LiPF6 > LiAsF6 > LiTf >
LiIm Dissociation constant: LiTf < LiBF4 < LiClO4 < LiPF6 < LiAsF6 < LiIm
The reversed order in the above two properties clearly demonstrates the conflicting nature of the requirements and the advantage of the well-balanced properties of LiPF6.
Lithium hexafluorophosphate is one of the most used electrolyte salt in the production of lithium ion batteries. Electrolyte Lithium Hexafluorophosphate for Lithium-ion Batteries has the ability of dissolving in binary and ternary solvents which cyclic carbonates and linear carbonates can be given as example. After lithium hexafluorophosphate dissolves in these solvents, it shows high electrolytic conductivity and thermal stability which is a desired property for lithium ion batteries. |
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