REACTIONS OF MOLTEN UREA WITH FORMALDEHYDE.

被引：0

作者：

Murray, Thomas P. ^{[1
]}

Austin, Ernest R. ^{[1
]}

Howard, Robert G. ^{[1
]}

Bradford, Timothy J. ^{[1
]}

机构：

[1] Univ of North Alabama, Dep of, Chemistry, Florence, AL, USA, Univ of North Alabama, Dep of Chemistry, Florence, AL, USA

来源：

Industrial & Engineering Chemistry, Product Research and Development | 1985年 / 24卷 / 03期

关键词：

CHEMICAL REACTIONS - Reaction Kinetics - FORMALDEHYDE;

D O I：

暂无

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学科分类号：

摘要：

When small amounts of formaldehyde are added to molten urea during manufacture, the physical properties of the urea are improved. Several compounds resulting from the urea-formaldehyde reaction become impurities in the urea matrix. In this study, high performance liquid chromatography (HPLC) has been used to analyze the products formed as a result of this conditioning process. A new compound, biurethmethyleneurea, has been isolated from formaldehye-conditioned urea. The reaction of molten urea with paraformaldehyde has been studied and the reaction products have been analyzed for methylenediurea, dimethylenetriurea, biuret, triuret, and biuretmethyleneurea.

引用

页码：420 / 425