His face had changed; fright had turned even the tip of his nose from red to deepest purple.
3
在实验过程的不同阶段,他将重铬酸钾和酒精加入苯胺中,最终得到了深紫色的溶液。
Incorporating potassium dichromate and alcohol into the aniline at various stages of the experimental process, he finally produced a deep purple solution.