1. Compound 7:LiH Fion Choi 3A(7)

2. Information Name (Ionic Bond): Lithium Hydride Formula: LiH Electron Diagram:

3. Physical Properties Appearance: A white crystalline solid, powder, odourless Boiling Point: Decomposes above 850°C Melting Point: 680°C Density: 0.82 g/cm3 Solubility in water: Reacts violently (Insoluble in alcohol and acetone) Thermal Conductivity: A good conductor of heat but conductivity of heat decreases when temperature increases Stability: Stable under normal conditions Storage: Keep container closed when not in use. Store in a cool, dry area.

4. Chemical Properties Preparation: Wear full protective equipment Reactivity: A strong reducing agent which decomposes violently in contact with most oxidizing materials. Burns readily in air. A flammable solid which reacts with water to give off corrosive lithium hydroxide and flammable hydrogen gas

5. Others Uses: used as a desiccant, for the synthesis of lithium aluminium hydride used in hydrogen generators, and in the manufacture of ceramics. Because lithium is lighter than sodium, making LiH is good for hydrogen storage. It can also be used as a storage vessel for use in hydrogen vehicles. Fire Hazards: Flammable (causes fire or explosion on contact with flame, heat, or oxidizing materials and gives off irritating or toxic gases in a fire) Health Hazards: Toxic, Corrosive (burns skin and eyes) Extinguishing Media: Do NOT use water, carbon dioxide or halogen extinguishers such as carbon tetrachloride. Use dry graphite or dry chemical extinguishers such as lithium chloride. ceramics hydrogen vehicles

6. Others NFPA 704 is used by emergency personnel to quickly and easily identify the risks posed by nearby hazardous materials. This is necessary to help determine what specialty equipment should be used, procedures followed, or precautions taken of an emergency response. Blue (Health)3: can cause serious or permanent injury Red (Flammability)4: will vapourize and readily burn at normal temperatures Yellow (Instability)2: has violent chemical change at high temperatures or pressures White W: reacts violently or explosively with water LiH’s NFPA 704

7. Resources http://en.wikipedia.org/wiki/Lithium_hydride http://www.espi- metals.com/msds's/lithiumhydride.pdf http://cameochemicals.noaa.gov/chemical/996 http://www.analytyka.com.mx/tabla%20periodica/ MSDS/Li/LITHIUM%20HYDRIDE%2098%25.htm http://www.ilo.org/public/english/protection/safew ork/cis/products/icsc/dtasht/_icsc08/icsc0813.htm The End