CRCU

Chemical Research in Chinese Universities ›› 1985, Vol. 1 ›› Issue (1): 89-92.

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NMR Study on the Hydration of Ions in Microemulsion--Bis-2-Ethylhexyl Phosphoric Acid-Alcohol-Kerosine-Water System

Wu Jinguang1, Gao Hongchen1, Chen Dian1, Jin Tianzhu1, Xu Guangxian(K. H. Hsu)1, Sun Xianyu2, Zhang Shuizhen2, Wu Huaju2, Wang Changjin2   

  1. 1. Department of Chemistry, Peking University, Beijing;
    2. Institute of Photographic Chemistry, Academia Sinica, Beijing
  • Received:1984-03-10 Online:1985-06-24 Published:2011-09-07

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Abstract: In the present investigation we have observed the proton shift of water of hydration of metal ions in a microemulsion formed by adding water gradually front 0.05% to 20% to a moisture-free bis-2-ethflhexyl phosphoric acid-alcohol-kerosine sistem saponified by metallic sodium,so that the mole ratio of concentration (M+)/V(H2O) can be varied from 100:1 to 1:100.Under such conditions,we have obtained the lirni's of SMEfor various cations as follows 6.78PPm(NH4+),6.80(Li+).5.96(Na+).6.40(K+),in comparison with the proton shift of liquid water,δ258 H2O=4.80PPm.