运用数字化实验技术探究凝聚法制备氢氧化铁胶体的过程

Using Digital Technology to Inquire Preparation Process of Ferric Hydroxide Colloid Through Coagulation

利用数字化实验技术，对氢氧化铁胶体和氯化铁溶液进行了电导率、pH、光照度等性质的测试和比较。通过实验。学生观察到电导率、pH、光照度等数据的差异，直观地感受到实验中电导率、pH、光照度的变化过程，从而认识溶液和胶体的不同。

Using digital technology, this paper tested the conductivity, pH and illuminance of Fe（OH）3 colloid and FeC13 solution. Through the experiments, students observed the data difference and change process of conductivity, pH and illuminance, and then understood the difference between colloid and solution.