目的合成增塑剂邻苯二甲酸二正丁酯。
目的：改进没食子酸正丁酯的合成工艺。
Objective: To improve the synthesis technology of n-butyl gallate.
实验证明钽酸是合成乙酸正丁酯的良好催化剂。
The results showed that tantalic acid was a good catalyst for the esterification.
以硫酸铁为催化剂，合成了邻苯二甲酸二正丁酯。
In this paper dibutyl phthalate was synthesized with ferric sulphate as catalyst.
酯合成反应的目标产物为乙酸乙酯或乙酸正丁酯；
The target product from ester synthesis reaction is ethyl acetate or n-butyl acetate.
目的研究硫酸镓在合成丙酸正丁酯工艺中的催化性能。
Objective To study the catalytic activity of gallium sulfate in the synthesis of n-butyl propionate.
苯二甲酸正丁酯常用于指甲油，它可能会造成皮肤刺激。
Dibutyl phthalate is found in nail polish and may cause skin irritation.
利用锆基催化剂合成邻苯二甲酸正丁酯，确定了反应条件。
Dibutylphthalate has been synthesized with zirconium base catalyst, and the suitable conditions of reaction have been determined.
以强酸性阳离子交换树脂为催化剂，合成羟基乙酸正丁酯。
Then-butyl hydroxyethanoate was synthesized by cation exchange resin as catalyst.
在优化反应条件下，没食子酸正丁酯的收率达到93．4％。
The yield of n-butyl gallate was 93.4% under the optimum reaction condition.
结果：在最佳实验条件下没食子酸正丁酯收率达93.8%。
Result:In optimal conditions, the yield of n-butyl gallate was over 93.8%.
在一水硫酸氢钠催化下由柠檬酸和正丁醇合成了柠檬酸正丁酯。
The tri-n-butyl citrate was synthesized by esterification of citric acid with butyl alcohol in the catalysis of sodium bisulfate.
每个微滴都有一颗油核，周围包裹着一层薄薄的氰基丙烯酸正丁酯。
Each droplet has an oil core surrounded by a thin layer of butyl cyanoacrylate.
通过选择合适的分析条件，可以将脂肪酸正丁酯与脂肪酸甲酯完全分开。
The butyl esters of fatty acid can be separated clearly from the corresponding methyl esters by applying suitable analytical conditions.
乙酸正丁酯是一种性能优良的有机溶剂，广泛应用于制药、涂料等行业。
N-butyl acetate is of excellent performance as an organic solvent, which is widely used in the pharmacy and the painting.
如今研究人员创造的胶囊是通过把氰基丙烯酸正丁酯和有愈合功效的化合物悬浮其中的油类混合而制的。
The capsules the researchers have come up with are made by mixing butylcyanoacrylate, a chemical found in superglue, with an oil carrying the healing compounds.
个别高档油墨用乙酸乙酯挥发速度太快，用乙酸正丁酯有气味残留，乙酸异丙酯是非常好的油墨溶剂。
The volatility of some specific high-end printing inks are fast as they use EAC and some of their smell bad as they use BAC, so isopropyl Acetate is a good solvent of high-end printing ink.
以硼酸三正丁酯、甲醇锂为主要原料，甲醇和四氢呋喃为溶剂，利用溶胶-凝胶法通过优化工艺制备了掺锂硼酸盐凝胶。
Li2O-B2O3 composite gels were successfully prepared from tri-n-butyl borate and lithium methoxide dissolved in methanol and tetrahydrofuran via sol-gel technique.
采用钛酸四正丁酯为原料，用溶胶-凝胶法在粘胶基活性炭纤维(A CF)毡表面制备了锐钛矿型的二氧化钛粒子，并用XRD,SEM进行了表征。
Anatase TiO 2 particles were prepared on viscose-based activated carbon fiber (ACF) felts surface via sol-gel method with tetra-n-butyl titanate as precursor and characterized by XRD and SEM.
目的研究正丁胺基罗沙替丁乙酸酯（BRA）对动物实验性胃溃疡的影响。
OBJECTIVE To study the effects of butylamine roxatidine acetas(BRA) on experimental gastric ulcer in mice.
对甲苯磺酸为催化剂，用梯度升温法，酸、醇直接酯化合成没食子酸正（异）丁酯。
Then (iso) butyl gallate was prepared by esterification of alcohol and gallic acid in catalysis ofp methyl benzene sulfonic acid and the reaction temperature was risen in a gradient style.
以硫酸镓为催化剂，正丁酸和异丁醇为原料合成了丁酸异丁酯。
Isobutyl butyrate was synthesized by using gallium sulphate as the catalyst.
以硫酸镓为催化剂，正丁酸和异丁醇为原料合成了丁酸异丁酯。
Isobutyl butyrate was synthesized by using gallium sulphate as the catalyst.
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