The process is carried out by using Soxhlet set, as experiment unit, with methyl sulfonic acid as a catalyst and magnesium sulfite as dehydrating agent, giving 97.
报道了合成乳酸丁酯的新方法 ，以乳酸和正丁醇为原料 ，在甲基磺酸催化下以亚硫酸镁为脱水剂 ，用索氏提取器进行回流合成。
The chemical base for the bisulfite can be ionic calcium, magnesium, sodium or ammonium, Sulfite pulping can be carried out over a wide range of PH.
亚硫酸氢盐里的钙离子，镁离子，钠离子，铵根离子等化学基可以电离。
The chemical base for the bisulfite can be ionic calcium, magnesium, sodium or ammonium, Sulfite pulping can be carried out over a wide range of PH.
亚硫酸氢盐里的钙离子，镁离子，钠离子，铵根离子等化学基可以电离。
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