phenols

The purified polysaccharides is determined by colourimetry with sulfuric acid phenol as colourimetric reagent.

测得多糖的含量为65。

The phenols were O-alkylated with 100% conversion and 100% selectivities using phenacyl bromide and benzyl bromide as alkylating reagents.

溴代苯乙酮和溴苄为烷剂,以高产率和100%的转率以及100%的选择性得到了酚的O-烷产物。

Catalytic synthesis of phenetole by ethylation of phenol with diethyl carbonate(DEC)in fixed bed reactor was investigated.

以碳酸二乙酯(DEC)为乙剂,与苯酚在气固相条件下催合成苯乙醚。

RESULTS Zhike syrup obviously prolonged the incubation period of coughing and increasel the bronchotracheal secretion of phenol red.

结果止咳露使咳嗽潜伏期延长,使气管酚红排泌量明显增加。

The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol, 2-acetylsalicylic acid, methyl salicylate, and o-hydroxyacetophenone respectively.

概述了4-羟香豆素的合成方法，重点介绍了苯酚法，乙酰杨酸法，杨酸甲酯法，邻羟苯乙酮法。

The technique for preparing phenol formaldehyde resin from phenolated wood (PWF) and its characters were studied and analyzed.

本文研究了酚木材制备酚醛树脂的技术,并对其性能进行分析。

It is based on the catalytic effect of phenols for the oxidation of gallocyanin by sodium bromate in sulfuric acid medium.

在硫酸介质中,利酚催溴酸钠氧花青的反应,联注射技术建立了注射催动力学光度法测定废中痕量酚的新方法。

BMI resin systems modified by allyl methylphenol ether,allyl methylphenol, allyl methol phenol and diallyl bisphenol A, respectly have been studied.

对以烯丙甲酚醚、烯丙甲酚、烯丙甲酚和二烯丙双酚A改性BMI所得树脂体系进行了研究。

Chloroxylenol , a halogenated phenol, is a germicide that is effective against gram negative and gram positive bacteria, fungi, and yeast.

Chloroxylenol ，一个卤代酚，是一种有效的杀菌剂是对革兰氏阴性菌和革兰氏阳性菌，真菌和酵母。

It was found that the removel of phenol, CN , and COD in 40-60 C range is as high as mesophile temperature.

嗜热菌在40～60℃内能有效地去除废中酚、氰和COD,活性比嗜温菌大,污泥沉降性能好,剩余污泥少。

In order to get polyaryloxyphosphazene, polyphosphazene's side chlorines are directly substituted by aryloxy of phenol using triethylamine as the bind acid agent.

然后以三乙胺为缚酸剂，使高聚氯磷腈直接与酚类合物进行取代反应，合成了标题高聚物。

Coking residuary water contains phenol and cyanogens, which contaminate water source badly. Therefore, the coking residuary water has to be dealt with and discharged.

焦含酚、氰污的来源很广,对源污染严重,焦污必须加以处理,合格后才能排放。

A new camphol sandaliol was synthetized by selective alkylation of isocamphol and phenol with acidic catalyst, and following hydrogenated in the presence of Raney nickel.

本文异龙脑与苯酚在酸性催剂作下进行选择性烷反应,再经催氢还原得到龙脑檀香产品。

Research and development for fhe production of pyrocatechol and hydroquinone by reaction of phenol with hydrogen peroxide and percarboxylic acid as hydroxylating reagent are introduced.

着重介绍过氧氢和过氧羧酸作羟剂,使苯酚羟生成邻苯二酚和对苯二酚的研究开发进展。

Compared with that of furane resin bonded sand,the feasibility of phenol resin bonded sand in forming a uniform coating layer in the inside mould surface is studied as well.

本文分析研究了砂在铸型中的成型条件及光洁内表面的形成机理，并对比研究了覆膜和呋喃自硬砂在铸型内表面形成均匀覆砂层的可行性。

P - tert - octylphenol (shorten by PTOP), the alkylation product of phenol with diisobutylene(shorten by DIB), has been largely applying in varied fields such as rubbers, oil additives and so on.

对叔辛酚（PTOP）作为二异丁烯（DIB）的下游产品，是一种途广泛、具有广阔的市场前景的精细工产品。