| Identification | More | [Name]
Lithium tetrafluoroborate | [CAS]
14283-07-9 | [Synonyms]
LITHIUM BOROFLUORIDE
LITHIUM TETRAFLUOROBORATE
Borate(1-),tetrafluoro-,lithium
lithiumfluoborate
Lithiumfluoborate,monohydrate
lithiumtetrafluoroborate,anhydrous
tetrafluoro-borate(1-lithium
LITHIUM TETRAFLUOROBORATE, 1.0M SOLUTION IN ACETONITRILE
LITHIUM TETRAFLUOROBORATE, ANHYDROUS, POWDER, 99.998%
Lithium tetrafluoroborate, anhydrous, pure, 98%
LITHIUM TETRAFLUOROBORATE, 98% ANHYDROUS
Lithiumtetrafluoroborate,98%
lithium fluoroborate
lithium tetrafluoroborate solution
lithium tetrafluoroborate, ultra dry
Lithium tetrafluoroborate, anhydrous 98%
Lithiumtetrafluoroborate,anhydrous98%
LiBF4.4H2O
Borate, tetrafluoro-, lithium
Borate,tetrafluoro-,lithium | [EINECS(EC#)]
238-178-9 | [Molecular Formula]
BF4Li | [MDL Number]
MFCD00011087 | [Molecular Weight]
93.75 | [MOL File]
14283-07-9.mol |
| Chemical Properties | Back Directory | [Appearance]
white powder | [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. | [form ]
powder
| [color ]
White to off-white | [Specific Gravity]
0.852 | [PH]
2.88 | [Stability:]
Stable. Incompatible with glass, acids, strong bases. Contact with acids releases toxic gas. Moisture-sensitive. | [Water Solubility ]
SOLUBLE | [Sensitive ]
Hygroscopic | [Merck ]
5543 | [Exposure limits]
ACGIH: TWA 2.5 mg/m3
NIOSH: IDLH 250 mg/m3; TWA 2.5 mg/m3 | [CAS DataBase Reference]
14283-07-9(CAS DataBase Reference) | [EPA Substance Registry System]
14283-07-9(EPA Substance) |
| Safety Data | Back Directory | [Hazard Codes ]
C,T,F | [Risk Statements ]
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed .
R31:Contact with acids liberates toxic gas.
R34:Causes burns.
R36/37/38:Irritating to eyes, respiratory system and skin .
R23/24/25:Toxic by inhalation, in contact with skin and if swallowed .
R11:Highly Flammable. | [Safety Statements ]
S22:Do not breathe dust .
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S27:Take off immediately all contaminated clothing .
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) .
S25:Avoid contact with eyes .
S16:Keep away from sources of ignition-No smoking . | [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 |
| Hazard Information | Back Directory | [Chemical Properties]
white powder | [Uses]
Catalyst in organic synthesis; electrolyte for lithium ion batteries. | [General Description]
We are committed to bringing you Greener Alternative Products, which adhere to one or more of The 12 Principles of Greener Chemistry. This product has been enhanced for energy efficiency. Find details here. | [Flammability and Explosibility]
Notclassified | [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.] |
| Questions And Answer | Back Directory | [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.
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