Abstract: The invention relates to a process for preparing metal complexes of polyvalent metal ions with azo compounds of formula (I) or tautomeric structures, in which R and R′ are —OH, —NH2, —NH—CN, aryl-amino, acylamino, or p-chlorophenyl, and R1 and R1′ are independently —OH or —NH2, that intercalate an intercalate by (1) stirring an aqueous dispersion of an alkali metal salt of the azo compound with the polyvalent metal salt at 10 to 35° C., (2) admixing an aqueous solution, dispersion, or emulsion of the intercalate, (3) passing the mixture through a reaction zone at 85 to 140° C., while regulating the pH so that the product dispersion leaving the reaction zone has a pH of 0.5 to 3, (4) adjusting the pH of the mixture to at least pH 5, and (5) isolating the intercalated metal complex.

Abstract: N-(Alkoxy-alkylthio-thiophosphoryl)-N'-substituted-N'-arylthio-formamidines of the formula ##STR1## IN WHICH R and R.sup.1 each independently is alkyl,R.sup.2 is alkyl, cycloalkyl or alkenyl, andAryl is phenyl or phenyl substituted by at least one of alkyl and halogen,Which possess arthropodicidal and nematicidal properties.