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The titration was carried out both by direct titration with EDTA and back titration with Zn2+. Eriochrome black T was used as the indicator at pH = 10 in both the titrations. The optimum reaction conditions and other analytical parameters were evaluated.S. JanagiramanT. Raj...
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rnSchool of Mechanical and Power Engineering,East China University of Science and Technology,Shanghai 200237,ChinarnJun GuornMidea Commercial Air Conditioning Company,Midea Group,Fuoshan 528311,ChinarnLanzhu ZhangrnSchool of Mechanical and Power Engineering,East China University of Science and Technology...