Intermediates for the preparation of triazolinones

A triazolesulphonic acid or its salt of the formula (III):

• ##STR24## wherein R.sup.1 represents alkyl having 1 to 6 carbon atoms which is optionally substituted by halogen, cyano or C.sub.1 -C.sub.4 -alkoxy, or represents cycloalkyl having 3 to 6 carbon atoms which is optionally substituted by halogen, cyano or C.sub.1 -C.sub.4 -alkyl, and
• R.sup.2 represents amino, a radical selected from the group consisting of alkyl, alkenyl, alkinyl, alkoxy, alkyl-amino or dialkylamino, each of which has up to 6 carbon atoms in the alkyl, alkenyl or alkinyl groups and each of which is optionally substituted by halogen, cyano or C.sub.1 -C.sub.4 -alkoxy, or represents a radical selected from the group consisting of C.sub.3 -C.sub.6 -cycloalkyl, C.sub.3 --C.sub.6 -cycloalkyl-C.sub.1 -C.sub.2 -alkyl or phenyl, each of which is optionally substituted by halogen, cyano, C.sub.1 -C.sub.4 -alkyl, C.sub.1 -C.sub.4 -alkoxy or C.sub.1 -C.sub.4 -alkoxycarbonyl,
• and
• M represents hydrogen or an alkali metal equivalent or alkaline earth metal equivalent.