methods balsalazide disodium was synthesized by reactions of condensation , reduction, diazotization , coupling and salification from 4-nitrobenzoyl chloride.
方法以对硝基苯甲酰氯为起始原料,经缩合、还原、重氮化、偶合、成盐等反应制得巴柳氮二钠。
after establishment of reservoir, some geological hazards as submersion behind dam, secondary salification and dam differential subsidence will happen probably.
水库建成使用后,可能出现坝后浸没、次生盐渍化及坝体不均匀沉降等地质灾害,应采取工程措施。
the unrefined nicotine was purified using solvent extraction and the nicotine was refined by a salification reaction of nicotine and palmitic acid.
并以溶剂萃取法对烟堿粗制品纯化,以烟堿和软脂酸的成盐反应精制烟堿。
according to the salification conditions and relationships of saline-alkali soil in songnen plain, we could get that the leading way of salt supply is different in different regions.