一般的防腐剂对水晶结构是有麻烦的，特别是乙二胺四乙基二钠。

Preservatives in general are troublesome to crystalline structures and especially disodium EDTA.

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本文介绍了一种用环氧乙烷生产羟已基乙二胺的新技术，列举了羟乙基乙二胺的性能及应用范围。

A new technology to produce hydroxy ethyl ethylene diamine using ethylene oxide is introduced in this paper. Its properties and application fields are also listed.

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利用氨基乙腈及丙烯腈的亲核加成、氢化反应合成了一种新的不等臂有机多胺化合物2 -氨基乙基-二（3-氨基丙基）胺。

A new inequilateral organic polyamine, 2-aminoethyl-bi(3-aminopropyl)amine, was synthesized by the additional and hydrogenation reaction of aminoacetonitrile with acrylonitrile.

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