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Citation: YAN Bo, ZHAO Lin, WANG Wen-Hua, TAN Xin. NMR and Viscosity Coefficients of CuCl₂ and CuSO₄ and Their Relationship to Water Structure[J]. Acta Physico-Chimica Sinica, ;2009, 25(04): 684-688. doi: 10.3866/PKU.WHXB200904181 shu

NMR and Viscosity Coefficients of CuCl₂ and CuSO₄ and Their Relationship to Water Structure

1.
School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, P. R. China

Received Date: 10 October 2008
Available Online: 7 January 2009

The viscosity coefficient (B) and nuclear magnetic resonance (NMR) coefficient (B') of CuCl2 and CuSO4 and their effects on the 17ONMR chemical shift (δ) of water were determined at lowconcentrations. Fromthese B and B' values, individual ion's B and B' values were further calculated. These coefficients and the relationship between aqueous solution concentrations and δ(17OH2) represented the effect of ions on water structure and the median water cluster size in aqueous solutions. CuCl2 and CuSO4 were both“structure-makers”. The effect of CuSO4 on water structure and median water cluster size was more powerful than that of CuCl2. Cl- broke more water clusters than SO2-4 . Cu2+ had an obvious effect on shortening the proton spin-lattice relaxation time in water and broadening the line width of the NMR spectrumduring the NMR relaxation process.
- Water structure,
- CuCl2,
- CuSO4,
- Chemical shift,
- Viscosity coefficient,
- NMR coefficient
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NMR and Viscosity Coefficients of CuCl2 and CuSO4 and Their Relationship to Water Structure

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通讯作者: 陈斌, bchen63@163.com

NMR and Viscosity Coefficients of CuCl₂ and CuSO₄ and Their Relationship to Water Structure