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Lithium tetrafluoroborate

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CAS:14283-07-9
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CAS:14283-07-9
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Lithium tetrafluoroborate Basic information
Description Preparation
Product Name:Lithium tetrafluoroborate
Synonyms:LITHIUM TETRAFLUOROBORATE;Borate(1-),tetrafluoro-,lithium;lithiumfluoborate;Lithiumfluoborate,monohydrate;lithiumtetrafluoroborate,anhydrous;Lithium tetrafluoroborate, ultra dry, 99.997% (metals basis);LITHIUM TETRAFLUOROBORATE FOR SYNTHESIS;Lithium tetrafluoroborate, 99.99%
CAS:14283-07-9
MF:BF4Li
MW:93.75
EINECS:238-178-9
Product Categories:halometallate salts;B (Classes of Boron Compounds);Classes of Metal Compounds;Li (Lithium) Compounds;Tetrafluoroborates;Typical Metal Compounds;Lithium Salts;Metal and Ceramic Science;Salts
Mol File:14283-07-9.mol
Lithium tetrafluoroborate Structure
Lithium tetrafluoroborate Chemical Properties
Melting point 293-300 °C (dec.) (lit.)
density 0.852 g/mL at 25 °C
vapor pressure 10Pa at 20℃
Fp 6 °C
storage temp. Store below +30°C.
solubility soluble in Acetonitrile, DMSO
form powder
Specific Gravity0.852
color White to off-white
PH2.88
Water Solubility SOLUBLE
Sensitive Hygroscopic
Merck 14,5543
Exposure limitsACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3
Stability:Stable. Incompatible with glass, acids, strong bases. Contact with acids releases toxic gas. Moisture-sensitive.
CAS DataBase Reference14283-07-9(CAS DataBase Reference)
EPA Substance Registry SystemBorate(1-), tetrafluoro-, lithium (14283-07-9)
Safety Information
Hazard Codes C,T,F,Xn
Risk Statements 20/21/22-31-34-36/37/38-23/24/25-11-36/38
Safety Statements 22-26-27-36/37/39-45-25-16-36/37
RIDADR UN 3260 8/PG 2
WGK Germany 3
3-10
Hazard Note Corrosive/Hygroscopic
TSCA Yes
HazardClass 8
PackingGroup III
HS Code 28269090
ToxicityLD50 orally in Rabbit: 1638 mg/kg LD50 dermal Rat > 2000 mg/kg
MSDS Information
ProviderLanguage
Lithium tetrafluoroborate English
SigmaAldrich English
ACROS English
ALFA English
Lithium tetrafluoroborate Usage And Synthesis
DescriptionLithium tetrafluoroborate, (LiBF4), lithium hexafluorophosphate, (LiPF6), lithium hexafluoroarsenate, (LiAsF6), lithium trifluoromethane sulfonate, (LiSO3CF3), are the electrolyte salts of the 21st Century. The performance of lithium ion cells, primary and secondary lithium cells depends on the purity of these compounds. Several hundred tons of these materials have been produced and many more tons -- and perhaps thousands of tons w will be required in the near future. One of the largest automotive producers predicts that there may be a market for 10-15 million pounds of these salts. The demand for Lithium ion primary cells is also very huge in electronics, computers, communication systems and military applications.
PreparationLithium tetrafluoroborate, LiBF4, is prepared by dissolving LiF in AHF and then BF3 gas is passed until precipitation is complete. After the reaction is over, excess HF is decanted and LiBF4 is dried under nitrogen until HF and H20 contents are reduced below 100 ppm level. Reaction is carried out in Teflon(R), polyethylene or polypropylene lined reactors to avoid metallic contamination.
Chemical Propertieswhite powder
UsesLithium tetrafluoroborate is a mild Lewis acid for Diels-Alder reactions. Catalyst for mild and efficient aminolysis of oxiranes. It is a reagent used in the preparation of rechargeable lithium-ion batteries.
UsesCatalyst in organic synthesis; electrolyte for lithium ion batteries.
UsesLithium tetrafluoroborate (LiBF4) finds application as electrolyte material in lithium ion batteries (LIBs). However, the presence of trace amount of water in LiBF4 causes its hydrolysis which leads to HF generation and destruction of the battery electrodes. Our LiBF4 contains < 100 ppm of water and is well suited for applications in LIBs.
General DescriptionThis product has been enhanced for energy efficiency.
Flammability and ExplosibilityNot classified
Purification MethodsDissolve it in THF just below its solubility, filter from insoluble material and evaporate it to dryness in a vacuum below 50o. Wash the residue with dry Et2O, and pass dry N2 gas over the solid and finally heat it in an oven at 80-90o. Its solubility in Et2O is 1.3g in 100mL at 25o; in THF it is 71g in 100mL at 25o. It is hygroscopic and is an IRRITANT. [Elliott et al. J Am Chem Soc 74 5211 1952, 75 1753 1953.]
Lithium tetrafluoroborate Preparation Products And Raw materials
Tag:Lithium tetrafluoroborate(14283-07-9) Related Product Information
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