CAS:
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21324-40-3
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MF:
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F6LiP
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MW:
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151.91
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EINECS:
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244-334-7
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Product Categories:
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Inorganic Fluorides
;
Classes of Metal Compounds
;
Li (Lithium) Compounds
;
Typical Metal Compounds
;
ElectrolytesSynthetic Reagents
;
Alternative Energy
;
Inorganic Salts
;
Lithium Salts
;
LithiumMetal and Ceramic Science
;
Materials Science
;
Salts
;
Synthetic Reagents
;
metal fluorophosphate complex
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Mol File:
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21324-40-3.mol
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Lithium hexafluorophosphate Chemical Properties
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Melting point
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200 °C (dec.) (lit.)
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density
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1.5 g/mL (lit.)
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Fp
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25 °C
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storage temp.
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Inert atmosphere,Room Temperature
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solubility
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H2O: slightly soluble(lit.)
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form
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Powder
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Specific Gravity
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1.50
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color
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APHA: <50
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Water Solubility
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soluble
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Sensitive
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Hygroscopic
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Exposure limits
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ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3
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Stability:
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Stable, but readily hydrolyzes upon exposure to water or moist air. Incompatible with strong oxidizing agents, strong acids.
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CAS DataBase Reference
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21324-40-3(CAS DataBase Reference)
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EPA Substance Registry System
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Phosphate(1-), hexafluoro-, lithium (21324-40-3)
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Lithium hexafluorophosphate Usage And Synthesis
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synthesis
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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.
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Chemical Properties
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white crystalline powder
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Uses
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The solutions of LiPF
6
in alkyl carbonates find applications as electrolytes in lithium ion batteries and the use of high quality battery grade electrolytes having extremely low water (<15 ppm) and hydrogen fluoride (<50 ppm) contents are critical for achieving high electrochemical performance.
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Uses
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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) .
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Uses
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Used as an electrolyte in Li-ion batteries.Lithium hexafluorophosphate is used as an electrolyte in lithium batteries, ceramic industries and for welding electrode manufacturing. It is also used in commercial secondary batteries, prism spectrometer and x-ray monochromator. Further, it catalyzes the tetrahydropyranylation of tertiary alcohol.
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