H07 pH 指示剂
目标:总结指示剂甲基橙、甲基红和酚酞的颜色变化与pH的关系。 |
广泛pH试纸上混合了四种不同指示剂，这样可以只用一条试纸，只测量一次，就能估计出溶液的pH，既简便又便宜。学生可以给配发的黑白复制件着色。
参考书目:
1) H.F. Holtzclaw and W.R. Robinson, College Chemistry, D. C. Heath and Company,
Lexington, (1988).
2) The colours of the universal indicator strip from pH 0 to 14 were taken from the
instruction leaflet which accompanied the Merck product (Art. 9535).
