formula I include hydrogen, ammonium, alkali metal cations such as sodium and potassium, alkaline earth metal cations such as calcium and magnesium and organic base cations, for example,alkylammonium cations of such alkylamines as triethanolamine and diethylaminoethylamine, piperazinium and morpholinium cations.Suitable substituted carboxamide groups include N-alkyl and N,N-dialkyl substituted car