an azo dye used as an acid-base indicator; used for titrations involving weak bases
双语例句
The application of microwave irradiation technique to remove methyl orange from wastewater was introduced. 介绍了利用微波辐照去除废水中甲基橙污染物的技术。
The color-reaction of nicotine with methyl orange was studied,and the satisfying result was obtained by applying it to determinate nicotine in smoke directly. 研究了甲基橙与烟碱的显色反应，并将其应用于直接测定烟气中的烟碱含量，获得较为满意效果。
