羟乙醛

OBJECTIVE Acetaldoxime was prepared by using acetaldehyde and hydroxylamine sulfate as main materials then methylthio acetaldoxime was synthesized by using the former products as main material.

目的本文研究了以乙醛和硫酸羟胺为主要原料合成乙醛肟，并以乙醛肟为原料合成甲硫基乙醛肟的工艺。

The method of preparing acetaldehyde oxime is developed with hydroxycamine sulfate from sodium nitrite and sulfur dioxide,and the optimal condition is also given.

研究了以亚硝酸钠和二氧化硫为原料，经硫酸羟胺合成乙醛肟的方法。

Hydroxybutyraldehyde, which is main material of synthesizing 3-hydroxybutyric acid was prepared through the aldol condensation of acetaldehyde in this paper. The properly reaction conditions of acetaldehyde condensation and paraldehyde depolymerization was studied and obtained.

本文自行制备了氧化反应的主要原料3-羟基丁醛，并对乙醛羟醛缩合反应及三聚乙醛的解聚反应进行了初步研究，确定了反应的最佳条件。

Both 2-hydroxyethyl and oxametallacycle species tautomerize to acetaldehyde, around 210 K and above 250 K, respectively. Some of that acetaldehyde desorbs while the rest decomposes to hydrogen and carbon monoxide.

羟乙基和氧金属环都会发生异构，分别在210 K和250 K生成乙醛，这些乙醛一部分从表面脱出，其余的部分发生分解反应产生氢气、水和一氧化碳。

The effect were validated by different yeasts、different malts、10L fermentation equipment .

同时采用气相色谱和液相色谱对甲醛、乙醛、5-羟甲基糠醛含量进行分析，并以不同种酵母、不同种麦芽糖化，10L 发酵罐的小试实验对调节剂效果进行验证。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。