查询词典 phenol-phthalein

At the optimum condition, which is at normal pressure and temperature 175-185 ℃, in mole ratio of phenol to DMC of 3:1, in 2 weight percent of catalyst to DMC, in 9ml/h of DMC feed rate and for reation period of about 12 hours, the yield of DPC is 23.5%, methyl phenyl carbonate yield is 47.89%, and the conversion of DMC is 82.4%. The reaction process was monitored and the reaction products were analyzied through gas chromatography and mass spectrograph.

在最适宜的反应条件下，即常压、温度在175-185℃范围内、苯酚与DMC摩尔比为3：1，催化剂与DMC摩尔比为2%左右、DMC滴加速率为9m1/h、反应12h，反应DMC总转化率为82。

In the structure of the complex, two oxygens of phenol in the ligand are bound to Ti to form a five membered cyclic complex of titanocene.

在配合物结构中，茜素红配体中的两个羟基氧均与钛键合，形成五元环状二茂钛配合物，且化合物中还存在两个结晶水

Objective: to set up menthol tincture phenol preparation and quality control method.

目的：建立薄荷脑苯酚酊的制备与质量控制的方法。

Objective To establish a capillary gas chromatography for determining the contents of phenol and menthol in itch relief agent.

目的 建立毛细管气相色谱法同时测定止痒灵中苯酚和薄荷脑的含量。

The photocatalytic degradation of phenol and methylene blue in aqueous solution is used as a probe to evaluate their photocatalytic activities.

以苯酚和丙酮的光催化降解作为探针反应，研究了它们在紫外和可见光下的光催化活性。

At present, the oil washing process methods domestic uses are washing oil by removing phenol in alkali, removing pyridine and quinoline in acid, getting naphthalene oil, methylnaphthalene oil and heavy oil after distillation.

目前，国内普通采用洗油加工方法是洗油经碱洗脱酚、酸洗脱吡啶和喹啉，蒸馏得萘油、甲基萘油和重油。

In this work the effects of the microporosity and chemical surfaceof polymeric adsorbents on adsorptive properties of phenol wereinvestigated.

译文在这工作，微孔性和化学制品 surfaceof聚合物吸附的作用在酚吸附物产wereinvestigated。

These experimental observations indicated that adsorption of phenol on the polymeric resins depended greatly ontheir microporosity and surface chemistry.

这些实验性观察表明酚的吸附在聚合物树脂很大地依靠了得ontheir微孔性和表面化学。

The well-developed microporosity and the strong surface polarity would improve the adsorptionof phenol on the polymeric resins.

高度发达的微孔性和强的表面极性在聚合物树脂将改进adsorptionof酚。

The well-developed microporosity and the strong surface polarity would improve the adsorptionof phenol on the polymeric resins. 2004 Elsevier B.V.

高度发达的微孔性和强的表面极性在聚合物树脂将改进adsorptionof酚。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。