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日用化学工业（中英文）

日用化学工业 ›› 2015, Vol. 45 ›› Issue (5): 257-259.doi: 10.13218/j.cnki.csdc.2015.05.004

• 开发与应用 • 上一篇    下一篇

N-十二烷基二亚甲基膦酸钠的制备及表征

刘润哲1,2, 何向文1,2, 宋慧林1,2, 张华1,2, 杨稳权1,2   

  1. 1.国家磷资源开发利用工程技术研究中心,云南 昆明 650113;
    2.云南磷化集团有限公司 磷资源开发利用工程技术研究分公司,云南 昆明 650113
  • 出版日期:2015-05-22 发布日期:2019-04-02
  • 作者简介:刘润哲(1984-),男,河南人,工程师,硕士,电话:18288738229,E-mail:liurunzhe@126.com。
  • 基金资助:
    “十二五”国家科技支撑计划资助项目(2013BAB07B05)

Preparation and characterization of sodium N-dodecyl-di(methylenephosphonate)

LIU Run-zhe1,2, HE Xiang-wen1,2, SONG Hui-lin1,2, ZHANG Hua1,2, YANG Wen-quan1,2   

  1. 1.State Phosphorus Resource Development and Utilization Engineering Technology Research Center, Kunming,Yunnan 650113,China;
    2.Phosphate Resources Engineering Research Branch, Yunnan Phosphate Chemical Group Co.,Ltd.,Kunming,Yunnan 650113,China
  • Online:2015-05-22 Published:2019-04-02

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摘要： 基于Mannich反应,以十二胺、甲醛和亚磷酸为原料,盐酸为催化剂制备出N-十二烷基二亚甲基膦酸,产率达95.75%。使用氢氧化钠与N-十二烷基二亚甲基膦酸反应,制备出了目的产物N-十二烷基二亚甲基膦酸钠。通过对产物进行31PNMR,1HNMR和元素分析,证明所制备产物为目的产物,且较为纯净。对产物溶液的表面张力进行了测定,发现其表面张力随着pH的变化呈现有规律的变化,且变化趋势与其结构信息一致。

关键词: N-十二烷基二亚甲基膦酸钠, Mannich反应, 表征, 表面张力

Abstract: N-dodecyl-di(methylenephosphonic acid) was prepared by Mannich reaction,with dodecylamine,formaldehyde and phosphorous acid as starting materials and hydrochloric acid as catalyst.The yield reaches 95.75%.The targeted product sodium N-dodecyl-di(methylenephosphonate) was prepared by reaction of NaOH with the N-dodecyl-di(methylphosphonic acid).Chemical structure of the product was characterized by 31PNMR,1HNMR and element analysis.Results showed that the product fits the requirement with rather high purity.Surface tension of solution of the product was determined.Results showed that the surface tension data changes with the pH regularly,and trend of the changes are consistent with structure information of the product.

Key words: sodium N-dodecyl-di(methylenephosphonate), Mannich reaction, characterization, surface tension

中图分类号: 

  • TQ423.11