Lithium hydride

• Catalog No.: A17948
• CAS Number: 7580-67-8
• M. F.: Li+
• M. W.: 6.941
• Purity: 97+%

SYNONYMS

• Title: 氢化锂
• IUPAC name: lithium(1+) ion hydride
• IUPAC Traditional name: lithium(1+) ion hydride

DATABASE IDS

• MDL Number: MFCD00011074
• EC Number: 231-484-3
• CAS Number: 7580-67-8
• Merck Index: 145533

PROPERTIES

• Purity: 97+%
• Density: 0.78
• Melting Point: 688°C
• GHS Hazard statements: H260-H331-H314-H318
• European Hazard Symbols: Toxic (T)
• European Hazard Symbols: Flammable (F)
• GHS Precautionary statements: P280-P303+P361+P353-P305+P351+P338-P310-P370+P378I-P402+P404
• Risk Statements: 14/15-23-34
• RTECS: OJ6300000
• Safety Statements: 26-36/37/39-43-45
• Storage Warning: Moisture Sensitive
• TSCA Listed: 是
• Hazard Class: 4.3
• UN Number: UN1414
• Packing Group: I

REFERENCES

• Used for preparation of anhydrous Li salts of carboxylic acids prior to reaction with organothium reagents (most often methyl or phenyl) as a useful route to ketones. For a comprehensive review of this method, see: Org. React., 18, 1 (1970). For an example (cyclohexyl methyl ketone), see: Org. Synth. Coll., 5, 775 (1973).
• For preparation of LiCN by reaction with acetone cyanohydrin, see: Org. Synth. Coll., 7, 517 (1990).
• A procedure for activation involves treatment with TMS chloride and a catalytic amount of Zn or a Zn salt. This reagent will reduce a ketone to the TMS ether of the alcohol: J. Org. Chem., 59, 217 (1994).