ketal ['ki:tæl]

ketal的基本解释

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缩酮, [化] 酮缩醇

与ketal相关的网络例句 [注：此内容来源于网络，仅供参考]

Catalytic activity of phosphotungstic acid on synthesizing butanone 1,2-propanediol ketal was discussed,the factors influencing the synthesis were discussed and the best conditions were found out.

探讨了磷钨酸对丁酮1，2 丙二醇缩酮合成反应的催化活性，研究了酮醇摩尔比、催化剂用量、反应时间等因素对产品收率的影响。

The quantity of catalyst was equal to 0.6% of feedstocks,the reaction temperature was 78～110 ℃,and the reaction time was 45 min. The test results have shown that H_4SiW_(12-O_(40)/MCM-48 is an excellent catalyst for synthesizing butanone 1,2-propanediol ketal with its yield reaching over 91.9%.

实验表明：H4SiW12O40/MCM-48是合成丁酮-1，2-丙二醇缩酮的良好催化剂，在n∶n(1，2-丙二醇)=1∶1.6，催化剂用量为反应物料总质量的0.6%，环己烷为带水剂，反应时间45 min的优化条件下，丁酮-1，2-丙二醇缩酮的收率可达91.9%。

Under the above conditions the yield of cyclohexanone 1, 2-propanediol ketal is 98.21%.

在此条件下，环己酮1， 2-丙二醇缩酮收率达到98.21%。

The effect of reaction time, the ratio of alcohol and ketone, catalyst amount, and the volume of water-carrying agent on the yield of cyclohexanone 1, 2-propylene ketal were investigated.

考察了反应时间、醇酮物质的量比、催化剂质量、带水剂体积等因素对环己酮1， 2-丙二醇缩酮收率的影响。

We also found for the first time that the reaction between ketone and alcohol to ketal was catalyzed by benzamide and their derivatives, and the related mechanism is proposed. Furthermore, under the same irradiation condition, the photo-reaction of succimide with alcohol as well as the photolysis of benzene sulfonamide was also found and studied.

并首次发现在紫外光激发下，苯甲酰胺对酮和醇生成缩酮的反应有一定的催化作用，进而对一系列芳酰胺类化合物作了对比实验，发现芳酰胺类化合物均能对缩酮的生成有催化作用，并对芳酰胺的作用机理进行了初步探讨。

与ketal相关的网络解释 [注：此内容来源于网络，仅供参考]

ketal：缩酮

水型油墨中加入可水解的挥发性缩酮(Ketal)也可防止油墨酸败. 例如2,2-二甲氧基丙(或丁)烷,2,2-二乙氧基丙(或丁)烷等. 在酸存在下,缩酮是极易水解的. 每克分子缩酮水解后可产生一克分子酮和两克分子醇.

ketal：酮缩醇 缩酮

cross pusher (炉用)横向出钢机 | ketal 酮缩醇 缩酮 | prepared chalk 研细白垩 沉降白垩 精制粉笔

ketal：酮缩醇

-itol糖醇 | -ketal 酮缩醇 | -ketene 乙烯酮

ketal：缩酮 酮缩醇

keta 大麻哈鱼 | ketal 缩酮 酮缩醇 | ketalformation 酮缩醇的形成

ketal formation：酮缩醇的形成

Kessler mill 凯斯勒轧机,周期式带钢轧机 | ketal formation 酮缩醇的形成 | ketamine 开他敏,氯胺酮