过氧化脲是过氧化氢和尿素的加成化合物。
Urea peroxide is the additive compound of hydrogen peroxide and urea.
三聚氰胺、尿素与甲醛经羟甲基化、醚化反应，生成甲醚化六羟甲基三聚氰胺和甲醚化羟甲基脲复合树脂胶。
Melamine, urea and formaldehyde underwent hydroxymethylation and etherification to yield a composed resin glue of methyl-etherified hexahydroxy methylmelamine and methyl-etherified hydroxymethylurea.
建立一种测定尿素中缩二脲含量的反相高效液相色谱(HPLC)方法。
A reversed - phase HPLC method was established to determine the biuret content in urea.
本文介绍了以对苯二酚为添加剂的缓效尿素中缩二脲含量分析方法的试验研究情况。
The analysis method for biuret content in long-efficacy urea using hydroquinone as an additive is studied and tested.
羟基苯尿素、咪唑烷基脲——它们是广泛应用的防腐剂。
Diazolidinyl Urea, Imidazolidinyl Urea - These are widely used preservatives.
以尿素与过氧化氢为原料合成过氧化氢脲，对其合成方法进行了筛选。
This paper reports about the chemical synthetic method of the urea hydrogen peroxide with urea and hydrogen peroxide.
但在生产中要妥善解决尿素浓溶液易结晶堵塞管道以及尿素在高温下易生成缩二脲的问题。
However these troubles of concentrated urea liquor crystallizing and blocking pipe, as well as urea changing into biuret at high temperature should be avoided.
以混合脂肪酸甲酯为原料，采用尿素包合法(脲包法)分离不饱和脂肪酸甲酯。
The unsaturated fatty acid methyl esters (FAMEs) were separated from the fatty acid methyl esters mixture using urea adduct method.
苯基脲具有很强的二阶非线性光学效应，其粉末二次谐波产生效率为尿素的11倍；
A primary study was carried out and the results revealed that phenylurea had fairly strong nonlinearity, its powder second harmonic generation efficiency was 11 times larger than that of urea.
在微波辐射条件下，以水合肼、尿素和苯甲醛为原料，采用一釜两步法合成了苯甲醛缩氨基脲。
The experimental results showed that microwave irradiation could enhance the yield of benzaldehyde semicarbazone.
在微波辐射条件下，以水合肼、尿素和苯甲醛为原料，采用一釜两步法合成了苯甲醛缩氨基脲。
The experimental results showed that microwave irradiation could enhance the yield of benzaldehyde semicarbazone.
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