Sulfuric acid was added to the solution to neutralize to the isoelectric point of iminodiacetic acid (IDA), and IDA crystallized from the solution.

 
  • 用酸将溶液酸化至亚氨基二乙酸的等电点,亚氨基二乙酸晶体析出,脱色重结晶,抽滤、干燥得产品亚氨基二乙酸。
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