ADSORPTION OF BARIUM AND HYDROXYL IONS BY SOILS AND MINERALS IN RELATION TO pH
ADSORPTION OF BARIUM AND HYDROXYL IONS BY SOILS AND MINERALS IN RELATION TO pH
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DOI：
10.1097/00010694-194202000-00004
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发表时间：
1942-02
期刊：
影响因子：
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通讯作者：
A. Mehlich
中科院分区：
文献类型：
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作者：
A. Mehlich
材料和方法研究了天然土壤、土壤的淤泥和粘土部分以及几种矿物质。使用的土壤来自以下来源：朴茨茅斯、诺福克和威克姆系列以及来自北卡罗来纳州沿海平原的淤泥；来自皮埃蒙特高原的塞西尔系列；卡尔弗斯夫妇，来自纽约州布鲁姆县；来自阿拉巴马州的拉夫金号和尤托号； Weld，来自科罗拉多州； Yazoo，来自伊利诺伊州东圣路易斯； Perrine，来自佛罗里达州霍姆斯特德；和来自新泽西州沿海平原的科林顿。最后一个是高绿石沙，使它呈现绿色。通过淘析获得的淤泥和粘土部分的颗粒尺寸小于0.02毫米。分离后，将淤泥和粘土用盐酸絮凝并倾析；将残余物过滤并用0.05N HCl洗涤，最后用蒸馏水洗涤。泥炭来自佛罗里达大沼泽地实验变电站。将其用0.05N HCl浸出，然后用水洗涤。从泥炭的氢氧化钠提取物中获得腐植酸，用HCl沉淀并用水洗涤。
MATERIALS AND METHODSNatural soil, silt and clay fractions of soil, and several minerals were studied. The soils used were from the following sources: the Portsmouth, Norfolk, and Wickham series and muck from the Coastal Plain of North Carolina; the Cecil series from the Piedmont Plateau; the Culvers, from Broome County, New York; the Lufkin and Eutaw, from Alabama; the Weld, from Colorado; the Yazoo, from East St. Louis, Illinois; the Perrine, from Homestead, Florida; and the Collington, from the Coastal Plain of New Jersey. The last was high in glauconitic sand which gave it a green color. The silt and clay fractions were of particle size less than 0.02 mm., obtained by elutriation. After separation, the silt and clay were flocculated with hydrochloric acid and decanted; the residue was filtered and washed with 0.05 N HCl and finally washed with distilled water. The peat was from the Florida Everglades Experiment Substation. It was leached with 0.05 N HCl and then washed with water. Humic acid was obtained from a sodium hydroxide extract of the peat, precipitated with HCl and washed with water.