無元素氯 的英文怎麼說
中文拼音 [wúyuánsù]
無元素氯
英文
ecf elemental chlorine free-
The three substituted cinnamamides were prepared from substituted cinnamyi chloride and 1 - phenylsemicarbzide in anhydrous acetone. the structures were confirmed by ir, 1hnmr , elemental analysis and physical data
由取代桂皮酰氯與1 -苯基氨基脲在無水丙酮中發生的氨解反應,合成了3個新的酰胺類化合物,經元素分析, ir和1hnmr譜進行表徵確證了其結構Ecf elemental chlorine free
無元素氯漂白
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