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Lithium tetrafluoroborate

Description Preparation

CAS No.14283-07-9
Chemical Name:Lithium tetrafluoroborate
CBNumber:CB6122283
Molecular Formula:BF4Li
Formula Weight:93.75
MOL File:14283-07-9.mol

Lithium tetrafluoroborate Property

Melting point 293-300 °C (dec.) (lit.)
Density 0.852 g/mL at 25 °C
vapor pressure 10Pa at 20℃
Flash point 6 °C
storage temp. Store below +30°C.
solubility soluble in Acetonitrile, DMSO
form powder
color White to off-white
Specific Gravity 0.852
PH 2.88
Water Solubility SOLUBLE
Sensitive Hygroscopic
Merck 14,5543
Exposure limits ACGIH: 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 Reference 14283-07-9(CAS DataBase Reference)
FDA UNII AF751CNK2N
EPA Substance Registry System Borate(1-), tetrafluoro-, lithium (14283-07-9)
UNSPSC Code 12352302
NACRES NA.23

Safety

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
F :3-10
Hazard Note :Corrosive/Hygroscopic
TSCA :Yes
HazardClass :8
PackingGroup :III
HS Code :28269090
Toxicity :LD50 orally in Rabbit: 1638 mg/kg LD50 dermal Rat > 2000 mg/kg

NFPA 704:

	0
3		1

Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal wordDanger
Hazard statements H302-H314-H341
Precautionary statements P260-P280-P301+P312-P303+P361+P353-P304+P340+P310-P305+P351+P338

Lithium tetrafluoroborate Price More Price(12)

Brand: Sigma-Aldrich(India)
Product number: 901695
Product name : Lithium tetrafluoroborate
Purity: ≥98%, acid <200 ppm, anhydrous
Packaging: 10G
Price: ₹18261.78
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 901695
Product name : Lithium tetrafluoroborate
Purity: ≥98%, acid <200 ppm, anhydrous
Packaging: 50G
Price: ₹55813.7
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 451622
Product name : Lithium tetrafluoroborate
Purity: ultra dry, powder, 99.99% trace metals basis
Packaging: 5G
Price: ₹10283.75
Updated: 2022/06/14
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Brand: Sigma-Aldrich(India)
Product number: 8.14347
Product name : Lithium tetrafluoroborate
Purity: for synthesis
Packaging: 10G
Price: ₹5740
Updated: 2022/06/14
Buy: Buy

Brand: Sigma-Aldrich(India)
Product number: 451622
Product name : Lithium tetrafluoroborate
Purity: ultra dry, powder, 99.99% trace metals basis
Packaging: 25G
Price: ₹34520.93
Updated: 2022/06/14
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Lithium tetrafluoroborate Chemical Properties,Usage,Production

Description Lithium 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.
Preparation Lithium 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 Properties white powder
Uses Lithium 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.
Uses Catalyst in organic synthesis; electrolyte for lithium ion batteries.
Uses Lithium tetrafluoroborate (LiBF₄) finds application as electrolyte material in lithium ion batteries (LIBs). However, the presence of trace amount of water in LiBF₄causes its hydrolysis which leads to HF generation and destruction of the battery electrodes. Our LiBF₄contains < 100 ppm of water and is well suited for applications in LIBs.
General Description This product has been enhanced for energy efficiency.
Flammability and Explosibility Not classified
Purification Methods Dissolve 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.]