2.The purified polysaccharides is determined by colourimetry with sulfuric acid phenol as colourimetric reagent.
测得多糖的含量为65。
3.The phenols were O-alkylated with 100% conversion and 100% selectivities using phenacyl bromide and benzyl bromide as alkylating reagents.
用代苯乙酮和苄为烷基试剂,以高产率和100%的转率以及100%的选择性得到酚的O-烷基产物。
4.Catalytic synthesis of phenetole by ethylation of phenol with diethyl carbonate(DEC)in fixed bed reactor was investigated.
以碳二乙酯(DEC)为乙基试剂,与苯酚在气固相条件下催合成苯乙醚。
5.The primary synthetic methods of 4-hydroxycoumarin was reviewed starting from phenol, 2-acetylsalicylic acid, methyl salicylate, and o-hydroxyacetophenone respectively.
概述4-羟基香豆素的合成法,重点介绍苯酚法,乙酰水杨法,水杨甲酯法,邻羟基苯乙酮法。
6.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。
7.The technique for preparing phenol formaldehyde resin from phenolated wood (PWF) and its characters were studied and analyzed.
本文研究用酚木材制备酚醛树脂的技术,并对其性能进行分析。
8.It is based on the catalytic effect of phenols for the oxidation of gallocyanin by sodium bromate in sulfuric acid medium.
12.In order to get polyaryloxyphosphazene, polyphosphazene's side chlorines are directly substituted by aryloxy of phenol using triethylamine as the bind acid agent.
然后以三乙胺为缚剂,使高聚氯磷腈直接与酚类合物进行取代反应,合成标题高聚物。
13.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、氰污水的来源很广,对水源污染严重,焦污水必须加以处理,合格后才能排放。
14.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.
本文用异龙脑与苯酚在性催剂作用下进行选择性烷基反应,再经催氢还原得到龙脑檀香产品。
15.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.
着重介绍用过氧氢和过氧羧作羟基剂,使苯酚羟基生成邻苯二酚和对苯二酚的研究开发进展。
16.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.
17.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.