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《JOURNAL OF BEIJING INSTITUTE OF LIGHT INDUSRY》 2000-01
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DETERMINATION OF DISSOCIATION CONSTANT OF 1,3-DIPHENYL-4-BUTYROL-5-PYRAZOLONE AS CHELATING AGENT

YU Qun, XUE Wei xing, WEN Ping, LI Jian yu (College of Chemical Engineering, Beijing Technology and Business University, Beijing 100037, China)  
Determined the dissociation constants of a new β diketone chelating agent 1,3 diphenyl 4 butyrol 5 pyrazolone in water dioxane mixed solvent by potentiometric titration. The value of Ka in water was abtained via extrapoling to zero amount of dioxane: pKa=4 38( t =25±0 1 ℃,I=010).
【CateGory Index】: O656.34
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1 Xue Weixing\ Yu Qun\ Li Jianyu (Department of Chemical Engineering,Beijing Institute of Light Industry,Beijing 100037);SYNTHESIS OF 1,3DIPHENYL4BUTYROL\=5PYRAZOLONE AS CHELATING AGENT[J];Journal of Beijing Institute of Light Indusry;1998-04
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1 MA Donglan(Department of Chemistry, Henan Normal University,453002 Xinxiang.)WANG Jinye(The Instinitute of Physical and Chemical Research,Wako, Japan.)Ishii H and Odashima T(Institute ofChemtcal Reaction Science,Tohoku University, Japan);STUDY ON SPECTROPHOTOMETRY OF COMPLEX COMPOUND OF THE NEW REAGENT 3,5-DIBROMOSALICYLALDEHYDEBENZOYLHYDRAZONE(DBSBH)AND GALLIUM[J];SPECTROSCOPY AND SPECTRAL ANALYSIS;1995-01
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