论文测定了D MF、丁酮和甲苯在DBP中的亨利系数。
In this thesis, the Henry coefficients of DMF, butanone and toluene in DBP were measured.
方法:测试了12种中药配方颗粒丁酮提取物的红外指纹图谱。
Methods: 12 species drugs were extracted with butanone respectively and then the obtained extracts were measured by the FT-IR spectrometer.
本次实验的目的就是找到一个合适的方法分离丁酮与水的共沸物。
The purpose of this experiment is to find a suitable method of separation about butanone and water azeotrope.
并介绍了钛硅分子筛的制备过程及合成丁酮肟过程中的条件控制。
Moreover, the producing process of titanium-silica zeolite and the control of condition in manufacture of 2-butanone oxime were introduced.
对苯醌开环后,进一步被氧化,中间会生成丁醇、丁酮、丙醇、乙二醇等。
Thep-benzoquinone was oxidized to open the ring and formed other intermittent products such as butanol, butanone, propanoic acid and ethanediol.
所得产物用95%乙醇分层,然后用丁酮萃取,得到精制的阿魏酸葡糖酯。
The production is washed by 95% ethanol , we can get delamination, then using butanone to extract the lower layer , the purificatory glucose ferulic acid esters can be accepted.
探讨了丁酮与乙二醇量比、催化剂用量、带水剂及反应时间对收率的影响。
Molar ratio of butanone to glycol, the dosage of catalyst, the volume of cyclohexane as the water-carrying agent and reaction time on the yield were discussed and the best conditions were found out.
实验表明在甲苯和丁酮的混合溶剂中进行反应能显著提高TBHQ的选择性;
The results showed that the selectivity of TBHQ increased by using a mixture of toluene and butanone.
本发明属于生物工程技术领域,公开了一种产3-羟基丁酮的菌株及其应用。
The invention discloses a strain for generating 3-hydroxy butanone and the application thereof, which belong to the field of bioengineering technology.
这也标明不是哪种溶剂对一切墨水的溶解功能都是很好的,当然也包括丙酮和丁酮。
This also shows that the function is not the kind of solvent to dissolve all the ink is very good, including acetone and butanone.
丁酮与水常温下部分互溶,蒸馏时又形成共沸物,给丁酮-水的分离带来了困难。
Butanone can be miscible with water under low temperature, and formed azeotrope when distillation, making the separation of butanone and water difficulty.
这种新的改性剂可以溶于甲苯、丁酮、丙酮和其他胶粘剂和涂料系统常用的溶剂中。
It is readily soluble in toluene, MEK, acetone and other solvents commonly used in adhesive and coating systems.
乳胶手套是处理含丁酮稀释液更好的选择,但是每副手套只能在有限的时间内处理(丁酮)。
Latex gloves are a better option for handling thinners with methyl ethyl ketone but for only a limited duration per glove pair.
本文介绍了2 -丁酮肟化法及异丁醛气相氧化法合成丁二酮,并对其影响因素进行了讨论。
In this paper the synthesis processes by 2 butanone oximation and gas phase oxidation of isobutyraldehyde were introduced. The influence factors in the process were discussed.
这也表明不是哪种溶剂对所有墨水的溶解能力都是很好的和洽当的,当然也包括丙酮和丁酮。
This also shows that not the kind of solvent on the solubility of all the ink is very good cordial when, of course, also include acetone and methyl ethyl ketone.
研究工作场所环境空气中二甲基甲酰胺、十一烷和丁酮混合物一次吸附、一次分离的定量分析方法。
Objective To study the analysis method of samples including a combination of dimethylformamide, undecane and butanone in the air of workshop.
结果各样品中易挥发的主要成分为甲苯、丁酮、汽油、醋酸乙酯、丙酮等,其急性毒性分级均为低毒。
Results Those samples ingredients easy to volatilize were mainly toluene, butanone, gasoline, ethyl acetate, acetone, etc. All of them were rated as low toxic for their acute toxicity.
咪草烟的合成可以用3-甲基-2- 丁酮、正丁醛、 粘氯酸或草酸二乙酯等原料,经八步反应制得。
Imazethapyr is synthesized from 3 - methyl - 2 - butanone. Butyraldehyde, nucochloric acid or diethyl oxalate by eight steps reaction.
综述了2-丁酮肟的合成方法,其中钛硅分子筛催化氨氧化2-丁酮合成2-丁酮肟是经济环保的工艺路线。
The synthetic methods of 2-butanone oxime was summarized, ammoxidation of 2-butanone to 2-butanone oxime catalyzed by titanium-silicalite zeolite is economical and environmental producing route.
用扫描电镜观察了ABS丁酮溶液灌注的鼠兔输卵管微血管、家鸽小肠绒毛微血管和丽斑麻蜥肺微血管构筑情况。
The microvasculature of Ochotona daurica, pigeon small intestinal villi and Eremias argus peters lung injected with solution of ABS in butanone was studied under scanning electron microscope.
该方法与传统的丁酮亚硝化法相比,具有操作简单、产率高的优点,而且氧化剂可再生循环使用,对环境的污染小。
Compared with the traditional method of nitrosation of butanone, this method has many advantages, such as simple operation, high yield, and low environmental pollution due to recycling of oxidant.
同时分别测定了采用水和DBP吸收d MF、丁酮和甲苯的吸收效果以及采用DMF吸收丁酮和甲苯的吸收效果。
And the absorption performances of DMF, butanone and toluene in water and DBP and the absorption performances of butanone and toluene in DMF were measured as well.
黄芩:采用硅胶G板,以醋酸乙酯-丁酮-甲酸-水(5:3:1:1)为展开剂,显色剂为1%三氯化铁乙醇溶液。
Radix Scutellariae was examined by Silca gel-G, the mobile phase was ethyl acetate-butanone-formic acid-water (5:3:1:1).
本文介绍了TGS822型MOS传感器对丁酮的反应机理,分析了将该传感器应用于吸油烟机气味降低度实验的可行性。
The paper introduced the reaction mechanism of the MOS sensor TGS822 sensitive to butanone. And analyzed the feasibility of the sensor used in the air fresh test of range hood.
用从头算的方法在6-31G水平上研究了3-羟基-3-甲基-2-丁酮(1)和苯甲酰甲酸甲酯(2)热分解反应的机理。
The mechanism and kinetics for the decomposition of 3-hydroxy-3-methyl-2-butanone and methyl benzoylformate have been studied by using the ab initio RHF/6 - 31G method.
通过对辐照含脂食品分析方法研究,分析了辐照含脂食品中2-十二烷基环丁酮气相色谱-质谱(GC-MS)测定法的原理和方法步骤。
In this study, the theory and method of detecting 2-dodecylcyclobutanone with GC-MS in irradiated foods containing fat were introduced in detail.
通过对辐照含脂食品分析方法研究,分析了辐照含脂食品中2-十二烷基环丁酮气相色谱-质谱(GC-MS)测定法的原理和方法步骤。
In this study, the theory and method of detecting 2-dodecylcyclobutanone with GC-MS in irradiated foods containing fat were introduced in detail.
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