亚胺基二甲撑膦酸的合成研究

Study on Synthesis of Iminodimethyl Enediphosphonic Acid

以碳酸铵、三氯化磷、甲醛为原料合成亚胺基二甲撑膦酸，并经过一步转化催化使亚胺基二甲撑膦酸相对于二甲撑和三甲撑的含量达９５％以上。

Iminodimethylenediphosphonic acid was prepared by the reaction of ammonium carbonate、phosphorus trichloride and methanal,and in presence of the catalyte by onestep conversion gave 95% HN[CH 2P(O)(OH) 2] 2 relative to HN[CH 2P(O)(OH) 2] 3and N[CH 2P(O)(OH) 2] 3.