Methods Chalcone derivatives were synthesized from benzaldehyde derivatives and acetophenone by using weak alkali potassium carbonate as based catalyst in water via phase - transfer catalysis.
方法以苯甲醛衍生物和苯乙酮为原料，弱碱碳酸钾为催化剂，水为溶剂，用相转移催化法合成查耳酮衍生物。
The research results showed that the modified film had good anti-corrosion performance in weak acid, neutral solution containing Cl- and strong alkali.
研究结果表明，联苯胺修饰膜对工业纯铁有很好的保护作用，在弱酸性、氯化钠以及强碱性介质中有良好的阻蚀性能。
Properties White powders, inodorous, atoxic, non-pollution, non-transference, light resistant, weak acid or alkali resistant, stable storage, insoluble in water and other organic solvents.
性质白色粉末，无味无毒、无污染、无迁移、耐光照、耐弱酸、耐弱碱，贮存稳定，不溶于水及其它有机溶剂。
Apply to water, water, steam, all kinds of oils, solvents, weak acid, alkali, ethanol, and other media.
适用于水、海水、蒸汽、各种油类、溶剂、弱酸、碱、乙醇等介质。
Apply to water, water, steam, all kinds of oils, solvents, weak acid, alkali, ethanol, and other media.
适用于水、海水、蒸汽、各种油类、溶剂、弱酸、碱、乙醇等介质。
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