天然水中钛的形态

The Species of Titanium in Natural Water

本文探讨了天然水中钛的存在形态,发现水中钛主要为颗粒态。pH值是影响水中钛形态的主要因素,低pH值下颗粒态在较短的时间转化成溶解态,高pH值下溶解态将缓慢转化成颗粒态。

The species of titanium innatural water was studied. Sample was fil-tered with a paper filter and a 0.45μmmembrane filter. The content of titaniumin each case was determined polarogra-phy proposed by Li, et al. It was foundthat the main species for all the testedsamples was of the particle form. A su-pernatant of a river water sample wastaken to study the effect of pH on thedistribution of titanium species. It wasfound that pH was an important factorfor species distribution. At pH1-2.the par-ticle will change into the dissolved formin a short time; at pH 6-8, the dissolvedform will Change into the particle formin several days.