Showing papers by "National Cheng Kung University published in 1968"
6 citations
TL;DR: In this paper, the formation of chelates between lead and triethylenetetramine has been studied by polarography and zone electrophoresis over the pH-range 40-120 and the ligand concentration range, 00485-03416 M .
4 citations
TL;DR: In this paper, the diffusion coefficients of some hydrocarbons and alcohols in hydrogen atmosphere were determined with a method similar to the operation of gas chromatograpic techniques, and detailed comparisons of these data with the available experimental values obtained by other methods and with the theoretical values calculated from the equations of Gilliland, Arnold, Hirschfeder, Slattery, Othmer, and Giddings respectively were discussed.
Abstract: A rapid determination of the diffusion coefficients of some gas-vapor binary systems was studied with a method similar to the operation of gas chromatograpic techniques. The diffusion coefficients of some hydrocarbons and alcohols in hydrogen atmosphere were determined. Then, detailed comparisons of these data with the available experimental values obtained by other methods and with the theoretical values calculated from the equations of Gilliland, Arnold, Hirschfeder, Slattery, Othmer, and Giddings respectively were discussed. The diffusion coefficients at various temperatures and flow rates of the carier gas were studied and their correlations to the different types of tubes were also discussed. The temperature power dependences of their diffusion coefficients were found experimentally for several gas-vapor binary systems.
3 citations
TL;DR: In this paper, the complexation of uranyl ion with fumaric and maleic acids was investigated by polarography and conductometry, and the dissociation constants obtained from the half-wave potential vs. pH plots were pK1=3.05 and pK2=4.55 for Fumaric acid and Pk1=1.90 and pk2=5.60 for maleic acid.
3 citations
3 citations
TL;DR: In this paper, the photochromic properties of 2, 4-dinitrochlorohenzene with N-(carbethoxymethyl)sydnone (II-4) and N-[(2, 4dinitrophenyl) carbethoxymyethyl]-sydone were investigated.
Abstract: N-(6-methoxy-3-pyridyl)-sydnone (I), N-(4-nitrobenzyl)sydnone (II-1), and N-(2-nitrobenzyl)sydnone (II-2) have been prepared Condensation of 2, 4-dinitrochlorohenzene with N-(carbethoxymethyl)sydnone (II-4) produced N-[(2, 4-dinitrophenyl) carbethoxymethyl]-sydnone (II-5) Under normal conditions none of them are photochromic
2 citations