as sodium or potassium, alkaline earth metal salts such as calcium or magnesium and ammoniumor substituted ammonium salts, for example those with lower alkylamines such as triethylamine, hydroxy-lower alkylamines such as 2-hydroxyethylamine, bis-(2-hydroxyethyl)-amine or tris-(2-hydroxyethyl)-amine, cycloalkylamines such as dicyclohexylamine,or with procaine, dibenzylamine, N,N-dibenzylethylenedia