查询词典 benzoate

The mechanism of thermal decomposition of erbium benzoate was studied by using TG,DTA and IR.

用TG、DTA、IR研究了它的热分解机理。

The effects of catalyst amount, mole ratio of sodium benzoate and benzyl chloride, reaction time on the esterification rate were studied.

考察了催化剂用量、釜残液与氯化苄的物质的量的比和反应时间对收率的影响。

Products in the fist emamectin benzoate production process through constant experience and technical optimization, content Product realize up to 60%, 70%, 80%, 90% of large-scale production.

并在拳头产品甲氨基阿维菌素苯甲酸盐生产过程中通过不断的经验总结和技术优化，实现产品含量分别达到60%、70%、80%、90%的规模化生产。

P-Nitro-ethyl benzoate was synthesized with potassium bisulfate as catalyst for the first time.

以硫酸氢钾为催化剂，合成对硝基苯甲酸乙酯，并对影响产率的诸因素进行了考察。

It shows that this method has good detection limit and less analysis time. So it can be used to detect the amount of preservative sodium benzoate in beverage exactly.

结果表明，此法有很好的重现性，分离速度快，线性范围宽，可用来准确分析饮料中的苯甲酸钠。

There were 5 kinds of benzoate pollutants and their toxicities existing in the wastewater at least.

废水中至少存在5种以上苯环污染物及其生物毒性。

The experiment showed that this separation method is feasible and benzyl benzoate with purity about 90% and fluorenone products with purity of more than 85% were obtained. Furthermore the effects of tower top pressure, temperatures of tower top and bottom, reflux ratio on product purity were analyzed.

试验表明该方法是切实可行的，并获得了纯度为90%左右的苯甲酸苄酯产品和85%以上的苏酮产品；同时探讨了塔顶压强、塔顶和塔釜温度、回流比变化对产品纯度的影响，获得了试验条件下的最佳操作条件。

Of the total volatile substances detected; the major volatile compounds were borneol, isoborneol and benzyl benzoate.

主要挥发性组分是冰片、异冰片和苯甲酸苄酯。

Benzyl benzoate was synthesized using benzoic acid paste residua and benzyl chloride as raw material at the presence of TEA.

以反应代替分离，将膏状的苯甲酸釜残液碱化后和氯化苄反应，采用相转移催化技术合成苯甲酸苄酯来加以应用。

Benzyl p amino benzoate ; PTC ; synthesis ; orthogonal design.

对氨基苯甲酸苄酯；合成；相转移催化；正交设计

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。