【摘要】 多功能的彩显防灰雾剂“EBP”是由烃基膦酸和含氮烃基膦酸所组成。其中烃基膦酸是按1:3:1.5（摩尔比）PCl₃、RCOOH 和水混合加热,回流付产物得到94.5%的烃基膦酸;含氮烃基膦酸是按2:1:2摩尔比的PCl₃、RNH₂、RCHO 的水溶液,在适当的温度下反应得到。将烃基膦酸和含氮烃基膦酸分别在低温条件下结晶,各自得到纯度在98%以上的固体结晶产物。更多还原

【Abstract】 “EBP”is a multi-function antifog agent in colour photographWhich is made from alkyl-phosphonic acid and amino—alkylphonic acid.Alkylphosphonic acid was prepared in a high yield by heating 1∶3∶1.5PCl₃ WithRCOOH and H₂O at 110-130℃.The by-product was returned below the surfaceof the reaction mixture to give 94.5% alkylphosphonic acid.Amino-alkylphosphonic acid was prepared by trcating PCl₃ with solution of RNH₂,RCHO in2∶1∶1 mole ration at 110-130℃.Alkylphosphonic acid or amino-alkylphosphonicacid was speedily separated using crystal method under lower temperature.更多还原