作者曾用HF—H_2SO_4—HCl溶样的方法测定钛矿中二氧化钛,取得较好的效果.本法仍然以HF分解钛矿,HCl助溶,采用双球式还原漏斗做还原装置,防止溶样过程中Fe~(2+)被氧化,溶样在水浴中进行,避免了酸的挥发污染,方法快速、准确,操作方便,可推广应用.一、试剂与仪器双球式还原漏斗:(见图1)作者设计制作.塑料皿:能用长的镊子夹住放入200ml锥瓶中,体积约8～10ml,可用废塑料瓶盖代替; The author has used HF-H_2SO_4-HCl sample solution titration titanium dioxide, and achieved good results.This method is still HF decomposition of titanium ore, HCl-assisted, using a double ball reduction funnel to do the reduction device to prevent the sample During the process, Fe2 + is oxidized and the sample is dissolved in a water bath to avoid the volatile pollution of the acid, and the method is rapid, accurate and easy to operate, which can be widely applied. Figure 1) The author design and manufacture. Plastic dish: can use long tweezers into the 200ml cone bottle, the volume of about 8 ~ 10ml, available plastic cap instead;