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KMID : 0370219960400060670
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Yakhak Hoeji
1996 Volume.40 No. 6 p.670 ~ p.678
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Properties and Application as the Indicator of N-4-Salicyloamido-2-Amino-6-Piperidinopyrimidine 3-Oxide Fe(III) Complex
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이종필/Lee JP
신준수/김경순/홍선표/김경호/김박광/Shin JS/Kim KS/Hong SP/Kim KH/Kim BK
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Abstract
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The combinations of N-4-salicyloamido-2-amino-6-piperidinopyrimidine 3-oxide (Salmi) and two transitional metals were colored. Among metals, Fe(III) made a distinct colored complex with Salmi. The mole ratio of Salmi and Fe(III) in the complex was 1:1. This Salmi-Fe(III) complex was recrystallized in Hexane/Acetone(=10/1, v/v) and investigated its physicochemical properties. The color of this complex was changed by pH.; deep violet pink in acids, orange in neutral, and yellow in bases. The range of color change was approximately 0.7 pH unit. Acid-base titration of various acidic or basic drugs using Salmi-Fe(III) complex as an indicator showed good accuracy and reproducibility.
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KEYWORD
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