| abstract |
1. Lead chelate complex compounds selected from the group consisting of lead 3-nitrosalicylaldehyde, lead 5-nitrosalicylaldehyde, lead 5-chlorosalicylaldehyde, lead 2, 4-dihydroxybenzophenone, lead ortho-hydroxyacetophenone, lead 1, 4-dihydroxyanthraquinone, lead 2,5-dihydroxybenzoquinone, lead bis-ortho-hydroxyphenacylphenone, lead phenylsalicylate, lead ethylsalicylate, lead disalicylamide, lead disalicylethylene diamide, lead salicylamide, lead bis-salicylaldehyde-o-phenylene diimine, lead salicylidene acetamide, lead bis-salicylaldehyde-ethylene diimine, and lead (o-carboxyphenyl) salicylaldimine. |