Encyclopedia of Reagents for Organic Synthesis . Lists over 2000 reagents, alphabetically arranged and with detailed subject index. Information for each reagent contains data on solubility, purification and physical data. Comprehensive Treatise on Inorganic and Theoretical Chemistry . Not an encyclopedia of chemistry in the strict sense of the word.
Essays are long, authoritative and include references.
Sixteen volumes with index in last volume. Dictionary of Chemistry and Chemical Technology in Six Languages . Languages include English, German, Spanish, French, Polish, Russian. The Synthesis and Reactions of Organic Compounds . Patterson's German-English Dictionary for Chemists .