查询词典 phenol-phthalein

Our company is very famous in the market for over 40 chemical products such as Phenol, Acetone and Cyclohexanone.

公司多年来经销的以苯酚、丙酮、环己酮等四十余种化工产品闻名遐迩。

For finding a suitable sorbent for a-methylstyrene in the process of producing phenol from cymene, the pore structure and pore size distribution of four coconut-shell activated carbon were analyzed and characterized by different methods (BET, t-plot and BJH) according to their nitrogen adsorption isotherms.

为了筛选在异丙苯法生产苯酚工艺中吸附分离α-甲基苯乙烯的吸附剂，测定了4种椰壳活性炭材料的氮吸附等温线，并用BET模型、t图法、BJH理论等方法对孔结构进行分析与表征。

At present chemistry trades the skin to have two kinds: One kind applies the decolorant, like hydrogen peroxide or hydroquinone; Another kind is uses the phenol or the trichloroacetic acid and so on carries on the corrosive cracking-off.

目前化学换肤有两种：一种是应用脱色剂，如过氧化氢或氢醌；另一种则是使用苯酚或三氯醋酸等进行腐蚀性剥脱。

In environtment protection field, it is one of key controlling objects to decontaminate phenol wastewater, which poses great harm ...

含酚废水是冶金工业废水中的一类，其危害大、处理困难，已成为我国目前重点控制的废水之一。

Objective To establish a PCR method for detection of Enterobacter sakazakii. Methods DNA was extracted by thermal denaturalization method and phenol-chloroform method respectively.

目的 建立阪崎肠杆菌的PCR检测方法方法用热裂解法和酚-氯仿法提取DNA。

The surface morphology visualized by AFM as well as the regularity of the films studied by XRD was also reported.We found that the diazonium group can form H-bond with phenolic hydroxy and the multilayered film from DR and phenol-formaldehyde resin was first fabricated.

并且利用重氮树脂的光反应这一独特性质，发展了组装纳米粒子及羧基功能化纳米管的方法，这将会在制备胶体晶体(胶体粒子规整排列，具有似晶体的结构)和固定纳米管上有所应用。

Results show that the main causes of low induction period of cracked naphtha are the high diene number and low phenol content.

结果表明，二烯值大、酚含量低是加氢渣油催化裂化汽油诱导期短的主要原因。

According to people who had moustaches, inhaling the air component quantitative analysis and found that the air sucked into the presence of dozens of hazardous substances, including phenol, toluene, acetone, isoamyl asked diene, and other carcinogens,, Who had moustaches, who inhaled the air pollution index, is 4.2 times that of ordinary air.

据对留有胡子的人吸入的空气成分进行定量分析，发现吸进的空气中含有几十种有害物质，其中包括酚、甲苯、丙酮、异戊问二烯等多种致癌物，留有胡子的人吸入的空气污染指数，是普通空气的4.2倍。

The result showed that, the effect of the synergistic reaction of alkyl-phenol-polyoxythylene ether phosphate dispersant TERSPERSE 4896, nonyl phenyl polyoxyethylene ether dispersant TERSPERSE 2210 and XG to suspension was different. Both the rheological curves were same presented as pseudoplastic fluid when they stored in R. T (18~25℃) for 10 days, but the rheological curve of suspension with the synergistic reaction of TERSPERSE 2210 and XG was changed to dilatant fluid when it stored in R.

结果表明，烷基酚聚氧乙烯磷酸酯类分散剂TERSPERSE 4896、壬基酚聚氧乙烯醚类分散剂TERSPERSE 2210与增粘剂黄原胶协同使用所得悬浮体系，室温(18~25℃)贮存10d仍表现出二者共同的流变特性，呈假塑性的流变曲线；但室温贮存150d后，含TERSPERSE 2210与黄原胶的悬浮体系的流变性质发生了明显变化，由假塑性流体向膨胀型流体转变。

The transesterification of DMC and phenol for diphenyl carbonate and methyl phenyl carbonate synthesis has been studied in this thesis.

本论文对碳酸二甲酯和苯酚酯交换法合成碳酸二苯酯及其中间体碳酸甲苯酯的反应进行了研究。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。