2,4-dihydroxyacetophenone thiosemicarbazone ( dapt ) forms a 1:1 complex with copper ( ii ) which can be extracted into n-butanol or ethyl acetate from acetic acid-sodium acetate ( ph 5.0 ) buffer , and a 1:1 nickel ( ii ) complex which can be extracted into n-butanol from ammonium chloride-ammonia ( ph 7.5 ) buffer .
C0142785
acetate
C0000983
acetic