Korean Journal of Soil Science and Fertilizer (한국토양비료학회지)
- Volume 24 Issue 1
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- Pages.41-49
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- 1991
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- 0367-6315(pISSN)
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- 2288-2162(eISSN)
Studies on the Reactions of Urea with Paraformaldehyde
Urea와 Paraformaldehyde 반응산물(反應産物)의 화학적(化學的) 특성(特性) 연구
- Choi, Du-Hoi (Agricultural Sciences Institute) ;
- Norwood, Verrill M. (Division of Research, TVA, National Fertilizer & Environmental Research Center)
- 최두회 (농업기술연구소) ;
- Published : 1991.03.30
Abstract
The reaction of molten urea with paraformaldehyde in sealed tubes has been examined, and the concentrations of the products obtained from this reaction have been contrasted to previous results from the identical reaction carried out in open beakers. In these studies, high performance liquid chromatography(HPLC) and nuclear magnetic resonance(NMR) spectroscopy were used to analyze the products formed in the reactions. These products were biuret, triuret, dimethylenetriurea, methylenediurea, and biuretmethyleneurea. The results from the HPLC analyses showed that the concentrations of dimethylenetriurea and methylenediurea in the reaction products increased as the amount of the paraformaldehyde starting material increased. However, the amount of biuret formed in the products decreased as the paraformaldehyde concentration was increased in the urea melt. The results from the NMR analyses showed that the
Urea와 Paraformaldehyde를 이용(利用)하여 Ureaform을 제조(製造)할 목적(目的)으로 이 두 성분(成分)을 혼합비율(混合比率)과 반응시간별(反應時問別)로 반응(反應)시켜 얻어진 산물(産物)의 화학적(化學的) 특성(特性)을 구명(究明)하기 위해 반응시(反應時) 생성(生成)된 물질(物質)로 예상(像想)되는 Urea, Biuret, Triuret, Methylenediurea(MDU), Dimethylenetriurea(DMTU), Biuretmethyleneurea(BMU) 등(等)에 대해 Proton-NMR Spectrometer로 분석(分析)한 결과(結果)
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