. . . . "metal or an alkaline earth metal such as for example but not limited to sodium, potassium and magnesium, C1-6 hydroxyalkyl such as for example but not limited to hydroxyethyl, hydroxypropyl and hydroxybutyl, C4-12 hydroxyalkoxyalkyl such as for example but not limited to hydroxyethoxyethyl, hydroxybutoxybutyl and hydroxymethoxypropyl, C4-12 hydroxydialkoxyalkyl such as for example but not limited" .