3-[N,N-Bis(carboxymethyl)aminomethyl]-1,2-dihydroxyanthraquinone. F- detection, colorimetric
ALC is utilized for colorimetric detection of fluoride ion. A red solution of the La(III) or Ce(III) complex turns blue in the presence of fluoride ions. ALC is insoluble in alcohol and ether, slightly soluble in water, and easily soluble in alkaline water. The fluoride complex can be extracted with iso-amylalcohol.