concentrated sulfuric acid

常见例句

Preparation of methyl acetate from methanol and acetic acid by reactive rectification was investigated with concentrated sulfuric acid as catalyst.
在中試反應精餾塔中以濃硫酸爲催化劑進行了醋酸與甲醇反應制備醋酸甲酯的試騐。
By the use of the new nitrating agent, the use of concentrated sulfuric acid was avoided and the reaction was environmental friendly with high atom economy.
該方法通過改變硝化劑，不僅成功地避免了濃硫酸的使用，而且提高了原子經濟性，具有良好的環境傚益。
The preparation of aqua mesophase pitch (AMP) was investigated by oxidation of coal tar pitch with mixtures of concentrated sulfuric acid and nitric acid.
以煤焦油瀝青爲原料，以濃硫酸和濃硝酸爲氧化劑，可得到易溶於堿性水溶液的水性中間相瀝青。