| http://www.w3.org/ns/prov#value | - Another compound useful as a hydrotrope is alkyl amphodicarboxylic acid is of the generic formula: ##STR9## wherein R is a C8 to C18 alkyl group, x is from 1 to 2, M is preferably chosen from alkali metal, alkaline earth metal, ammonium, mono-, di-, and tri-ethanolammonium, most preferably from sodium, potassium, ammonium, and mixtures thereof with magnesium ions.
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