Chemical Name: Lithium borohydride
CAS No.: 16949-15-8
EINECS: 241-021-7
RTECS: ED2725000
Molecular Formula: BH₄Li
Molecular Weight: 21.78 g/mol
Melting Point: 280 °C
Sensitive: Air & Moisture Sensitive
Following is the structure of Lithium tetrahydroborate (16949-15-8):

Product Categories about Lithium tetrahydroborate (16949-15-8) are B (Classes of Boron Compounds) ; Classes of Metal Compounds ; Li (Lithium) Compounds ; Reduction ; Synthetic Organic Chemistry ; Tetrahydroborates ; Typical Metal Compounds ; Borohydrides ; BorohydridesAlternative Energy ; Boron Hydrides ; Materials for Hydrogen Storage ; Synthetic Reagents
The chemical synonymous of Lithium tetrahydroborate (16949-15-8) are Borate(1-), tetrahydro-, lithium ; Borate(1-),tetrahydro-,lithium ; Borohydruredelithium ; Libh4 ; Lithiumboranat ; Lithiumborhydrid ; Lithiumtetrahydridoborat ; Tetrahydro-borate(1-lithium

Reported in EPA TSCA Inventory.

Poison by ingestion, inhalation, and skin contact. Flammable; can liberate H₂. Incompatible with H₂O as moisture on fibers of cellulose or as liquid. See also LITHIUM, BORON COMPOUNDS, and HYDRIDES.
Hazard Codes:
F: Flammable
C: Corrosive 
T: Toxic
Risk Statements about Lithium tetrahydroborate (16949-15-8):
R11 Highly flammable. 
R15 Contact with water liberates extremely flammable gases. 
R19 May form explosive peroxides. 
R22 Harmful if swallowed
Safety Statements about Lithium tetrahydroborate (16949-15-8):
S16 Keep away from sources of ignition - No smoking. 
S29 Do not empty into drains. 
S33 Take precautionary measures against static discharges. 
S43C In case of fire, use limestone powder, sodium chloride or dry sand (never use water
Attention:
1. Storage: Keep away from heat, sparks, and flame. Keep away from sources of ignition. Store in a cool, dry place. Do not store in direct sunlight. Store in a tightly closed container. Keep under a nitrogen blanket. Keep from contact with oxidizing materials. Keep away from water. Water free area. Regularly check inhibitor levels to maintain peroxide levels below 1
2. Handling: Use only in a well-ventilated area. Avoid contact with eyes, skin, and clothing. Empty containers retain product residue, (liquid and/or vapor), and can be dangerous. Keep container tightly closed. Keep away from heat, sparks and flame. Avoid ingestion and inhalation. Prevent build up of vapors to explosive concentration
3. Health Hazard: Inhalation or contact with vapors, substance or decomposition products may cause severe injury or death. May produce corrosive solutions on contact with water. Fire will produce irritating, corrosive and/or toxic gases. Runoff from fire control may cause pollution.

DOT Classification:  4.3; Label: Dangerous When Wet

 Lithium tetrahydroborate (16949-15-8) is a tetrahydroborate and known in organic synthesis as a reducing agent for esters.It may be prepared by the metathesis reaction between the more commonly available sodium borohydride, and lithium bromide:
NaBH₄ + LiBr → NaBr + LiBH₄ 
 Lithium tetrahydroborate (16949-15-8) reacts largely like sodium borohydride, in that it is a hydride-donating reducing agent in organic synthesis.It is also renowned as one of the highest energy density chemical energy carriers. When reacting with atmospheric oxygen it liberates 65 MJ/kg heat. Since it has a density of 0.67 g/cm³, oxidation of liquid lithium borohydride gives 43 MJ/L. In comparison, gasoline gives 44 MJ/kg (or 35 MJ/L), while liquid hydrogen gives 120 MJ/kg (or 8.0 MJ/L).The high specific energy density of lithium borohydride has made it an attractive candidate to propose for automobile and rocket fuel, but despite the research and advocacy it has not been used widely. As with all chemical-hydride-based energy carriers, lithium borohydride is very complex to recycle (i.e. recharge) and therefore suffers from a low energy conversion efficiency. While batteries such as lithium ion carry an energy density of up to 0.72 MJ/kg and 2.0 MJ/L, their DC to DC conversion efficiency can be as high as 90%. In view of the complexity of recycling mechanisms for metal hydrides,such high energy conversion efficiencies are beyond practical reach.