Diffusion Coefficient of Silica in Seawater

Diffusion Coefficient of Silica in Seawater
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DOI:
10.1038/physci229094a0
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发表时间:
1971-01
期刊:
影响因子:
64.8
通讯作者:
R. Wollast;R. Garrels
R. Wollast;R. Garrels
中科院分区:
综合性期刊1区
文献类型:
--
作者:
R. Wollast;R. Garrels

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本文用隔膜池法测定了25 ℃下溶解的单体二氧化硅在36.1%盐度海水中的扩散系数。系数D的值为1.0±0.05×10− 5cm 2s −1。在海底温度下,该值可能约为0.5×10− 5cm 2 s − 1,并与孔隙水-沉积物系统中二氧化硅的经验扩散系数在0.1至0.3×10− 5cm 2 s −1的数量级一致,当对孔隙度进行校正时。
THE diffusion coefficient of dissolved monomeric silica in seawater of 36.1% salinity has been determined at 25° C by the diaphragm cell method. The value of the coefficientDis 1.0±0.05×10−5cm2s−1. The value at seafloor temperatures is probably about 0.5×10−5cm2s−1and is consistent with empirical diffusion coefficients of silica in pore water-sediment systems of the order of 0.1 to 0.3×10−5cm2s−1, when corrections for porosity are made.