以十二水合硫酸铁铵为催化剂合成乙酸酯。
Acetates were synthesized with ammonium ferric sulfate as catalyst.
一种乙酸酯，用于纤维、织物、照相胶卷和清漆中。
An ester of acetic acid; used in fibers and fabrics; photographic films and varnishes.
乙酸酯和粘胶材料使其系列呈现向日葵效应，光彩夺目。
Acetates and viscose materials that provide sunflower effects, with particular attention given to bronze.
它们主要是单萜烯、单萜烯醇、单萜烯乙酸酯和倍半萜烯。
They were mainly monoterpenes, monoterpene alcohols, monoterpene acetates and sesquiterpenes.
蔗糖- 6 -乙酸酯的选择性氯化是合成三氯蔗糖的关键步骤。
Selecting chlorination of hydroxyl group in sucrose 6-acetate is a key in the process of making sucralose.
蔗糖- 6 -乙酸酯的选择性氯化是合成三氯蔗糖的关键步骤。
Selecting chlorination of hydroxyl group in sucrose 6-acylates is a key in the process of making sucralose.
对酸奶制作中甾醇乙酸酯和蔗糖添加量、酸奶发酵条件进行了研究。
This study examined the effect of the addition of phytosterol acetate and sucrose on the fermentation of yogurt.
该结果对乙酰乙酸酯法合成假性紫罗兰酮的工业开发具有实用价值。
The results can be used to guide the engineering development for the synthesis of pseudoionone by this method.
其中一个初始的细菌经历了一次变异，分泌出了一种有机化学物质乙酸酯。
One of the original bugs had undergone a mutation that caused it to excrete acetate, an organic chemical.
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.
其中一个初始的细菌经历了一次变异，分泌出了一种有机化学物质乙酸酯。
A second bug experienced a mutation that allowed it to make use of the acetate excreted from the first.
将硫酸氢钠作为由乙二醇单甲醚和乙酸酯化合成乙二醇单甲醚乙酸酯的催化剂。
Sodium bisulfate was used as the catalyst for esterification of ethylene glycol mono-methyl ether and acetic acid to ethylene glycol monomethyl ether acetate.
其中有一个初始的细菌经历了一次变异，使它分泌出了一种有机化学物质乙酸酯。
One of the original bugs had undergone a mutation that caused it to excrete acetate , an organic chemical.
建立了基于手性毛细管柱直接测定丙烯酮醇和丙烯酮乙酸酯对映体含量的气相色谱法。
A gas chromatographic method was developed to directly determine the enantiomers of acrylic ketone alcohol and acrylic ketone acetate.
它们的乙酸酯皂化制得相应的醇，通过高效精馏柱精馏使之分离得纯的香叶醇和橙花醇。
Saponification of the acetates produced the respective alcohols. Pure geraniol and nerol were separated by rectification on a highly efficient packed column.
利用2'，7'二氯双氢荧光素二乙酸酯在共聚焦显微镜下测定内皮中的氧自由基生成量。
The production of oxygen-derived free radicals in the endothelium was measured with 2', 7'-dichlorodihydrofluorescein diacetate using confocal microscopy.
报道了以硫酸铁水合物作催化剂合成乙酸酯的研究结果，并讨论了该酯化反应的最佳条件。
The hydrated ferric sulfate was used as a catalyst for esterification of alcohol with glacial acetic acid and discussed the best condition in reaction of esterification.
以钼磷酸为催化剂合成了两种羟基乙酸酯，并经沸点和核磁共振氢谱确定了它们的组成和结构。
Molybdophosphoric acid used as the catalyst, two alkyl glycolates were prepared. The glycolates were characterized by the boiling points and proton NMR spectra.
海水富含多种矿物质成分，与生育酚乙酸酯一起配合富含自然多糖的黄原胶，令肌肤有光泽细腻。
Rich in various minerals, sea water works well with tocopheryl acetate and Xanthan, the latter with abundant natural polysaccharides, making the skin illuminating and smooth.
实验结果表明，采用甲醇、二氯甲烷的混合物作为展开剂可较好地分离6位及4位蔗糖乙酸酯。
The results show that it is easy to separate sucrose-6-acetic ester from sucrose-4-acetic ester, using carbinol and dichloromethane as unfolding agent.
乙酸酯是一类重要的有机溶剂和有机化工基本原料，广泛用于有机合成、油漆涂料、医药、香料、粘接剂等行业。
Acetate is an important kind of organic dissolvent and chemical raw stuff. It is wildly used in such industries as organic synthesis, paint, coating, medicine, aromatics and binder etc.
利用有机锡二氯化物为催化剂，制备了七种巯基乙酸酯。文中对影响反应的诸因素进行了讨论，酯的收率在90%左右。
By using organo_tin dichlorides as catalyst, seven thioacetates were prepared. Experimental parameters were discussed. The yield was about 90%.
反应后甲烷磺酸亚铈经过简单的相分离就可重复使用，用甲烷磺酸亚铈催化合成其它氯乙酸酯，酯化率均在98 0%以上。
And the cerous methanesulfonate an be reused by simple phase-separation. Cerous methanesulfonate can be used as the catalyst in synthesizing other chloroacetate, the yield is over 98.0%.
在洗衣粉中掺入螯合剂，例如次氮基三乙酸酯(NTA)或者是乙二胺四乙酸酯(EDTA)，这些螯合剂易于形成水溶性的金属螯合物。
A chelating agent which forms an easily water-soluble metal chelated compound such as nitrilotriacetate (NTA) or ethylene diamine tetraacetate (EDTA) is incorporated in a detergent composition.
蔗糖- 6 -乙酸酯的平均回收率为80.06%，平均纯度为90.48%，并用红外光谱、质谱、核磁共振等方法对蔗糖- 6 -乙酸酯的结构进行了鉴定。
The average recovery of the method was 80.06% and the purity was 90.48%. The structure of purified sucrose-6-acetate was also identified by the methods of IR, MS, NMR.
在氟化钾催化下，芳香醛与氰乙酸乙酯发生克脑文格尔缩合反应，得到高产率的缩合产物。
The knoevenagel condensation of aromatic aldehydes with ethyl cyanoacetate proceeds smoothly in the presence of potassium fluoride giving products in high yield.
当制成膳食补充剂时，视黄醇稳定为乙酸视黄酯或棕榈酸视黄酯的酯衍生物。
When prepared as a dietary supplement, retinol is stabilized as the ester derivatives retinyl acetate or retinyl palmitate.
合成了一种新的乙酸2-辛基十二烷醇酯。
本文介绍了用重氮转移法合成具有较大空间位阻的重氮乙酸二环己基甲酯、L- 薄荷酯和叔丁酯。
Synthesis of sterically hindered dicyclohexylmethyl, L menthyl and tert butyl diazoacetate by diazo transfer was described on this paper.
本文介绍了用重氮转移法合成具有较大空间位阻的重氮乙酸二环己基甲酯、L- 薄荷酯和叔丁酯。
Synthesis of sterically hindered dicyclohexylmethyl, L menthyl and tert butyl diazoacetate by diazo transfer was described on this paper.
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