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在2N左右热盐酸溶液中以二甲酚橙作指示剂。用EDTA溶液滴定锆。铁、钛二元素分别采用邻菲啰啉及变色酸比色法。分析钛方法中选用草酸络合锆,以避免用氨水调节酸度时产生氢氧化锆.硅的比色法采用氢氟酸处理试样,可使试样不溶物中的硅也参加反应. 一锆的测定称试样0.5克至100毫升烧杯中,加入盐酸(1+1)30毫升,加热溶解,冷却,移至50毫升量瓶中,以水稀释至刻度。吸出20毫升溶液至250毫升三角烧瓶中,加入盐酸4毫升,水40毫升,煮沸3分钟后,加入少量二甲
In 2N hot hydrochloric acid solution to xylenol orange as an indicator. Titrate zirconium with EDTA solution. Iron, titanium two elements were used phenanthroline and chromotropic acid colorimetry. Analysis of titanium in the selection of oxalic acid zirconium complex to avoid the use of ammonia to adjust the acidity of zirconium hydroxide.Silicon colorimetric method using hydrofluoric acid treatment of the sample can make the sample insoluble silicon also participate in the reaction.A zirconium The sample was weighed 0.5 grams to 100 ml beaker, add hydrochloric acid (1 +1) 30 ml, heated to dissolve, cooled, moved to 50 ml volumetric flask, diluted with water to the mark. Aspirate 20 ml of the solution into a 250 ml Erlenmeyer flask, add 4 ml of hydrochloric acid, 40 ml of water, boil for 3 minutes, add a small amount of dimethyl