对于Bentonite之初步研究

民国三十三年著者以英国奖学金,由农林部派赴英国剑桥大学研究,三十五年在剑桥 Gan-vendish 实验室膠质化学部研究土壤膠质,蒙 Rideal 教授予以种种方便,并嘱研究 Bentonite,惟研究之时间甚短,疏忽错误之处,尚希读者惠予指正为幸。Montmorillonite(Mg,CaO,K,Na)Al_2O_3·5 SiO_2 5H2O 土,为构成 Bentonite 之主要成分,可以代表土壤无机膠质吸持养分及供给养分于植物之机能,又可藉此而说明土壤之主要理化学性质。以 X—ray 分析 Bentonite,其所示之光带,相当于 Montmorillonite 与石英适量之混合物,故由 Bentonite 试验所得之结果,亦可以作研究土壤膠质性能之参考。

Preliminary Study on Bentonite

1.The effect of salts of chloride to flocculate the bentonite suspension was that Al>Fe>Mg>Ca>K>Na.The effect of concentration of solution to flocculate the bentonite suspension was that the higher concentration of solution made more flocculation. 2.The concentrations amoung the salt solutions indicating the high viscosity of the flocculation of 10c.c.1% bentonite are 0.5c.c.N.NaCl,2c.c.N.KCl, 2c.c.N.CaCl_2,0.5c.c.N.MgCl_2,0.1c.c.N.FeCl_3,0.5c.c.N.AlCl_3 and the concentrations showing the low viscosity are ...