title: Synthetic and analytical studies on colour reagents-X Colour reagents for lithium.
abstract: Few colour reagents are known for lithium. Of several hundreds of reagents synthesised by the authors and their collaborators, o,ot-dihydroxyazo compounds were found to be the best, especially those with beta-naphthol derivatives as a coupling component. The bluish colour of the reagent turns to red in the presence of lithium.
authors.affiliation: Department of Chemistry Okayama University OkayamaJapan.
authors.forename: K
authors.initials: K
authors.lastname: Tôei
authors.forename: T
authors.initials: T
authors.lastname: Kobatake