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- Keywords brominated biphenyl;visible light;photosensitization;ultrasound; 溴联苯;可见光;光敏化;超声;
- The product includes: 4- bromine biphenyl, 4.4 ' two bromines biphenyl, 2- bromine biphenyl, 3- bromine biphenyl, two acids two acid radical, adipic acid two acid radical and so on many varieties. 产品有:4-溴联苯,4.;4’二溴联苯,2-溴联苯,3-溴联苯,葵二酸二酰肼,己二酸二酰肼等多个品种。
- brominated biphenyl 溴联苯
- Sodium biphenyl, 20%w/w solution in diethylene gl... 询价 联苯钠(20%25溶于二乙二醇二乙醚);
- Brominated pentabromobenzyl was prepared from pentabrominated toluene by using bromine/peroxides method and NBS method. 采用溴/过氧化物法和NBS法对五溴甲苯进行苄位溴化,合成了五溴苄基溴,比较了两种方法的优缺点。
- The sample of brominated epoxy resin enclosed in filter paper is burned in flask filling with oxygen. 溴化环氧树脂样品用滤纸包裹,置于充满氧气的烧瓶中燃烧。
- The quantitative analysis of dihydrosafrole, by gas chromatography on 2% DEGS packed column and using biphenyl as internal standard, was introducced. 采用DEGS为固定液、联苯为内标物,用气相色谱法测定二氢黄樟油中二氢黄樟素的含量。
- The affect of broming agent amount on bromineconfent in brominated polystyrene was studied. 讨论溴化剂用量对溴化聚苯乙烯溴含量的影响;
- BACKGROUND & AIM: To study effects of polychlorinated biphenyl PCB126 on B(a)P-induced genotoxicity. 背景与目的:探讨多氯联苯126(PCB126)对苯并(a)芘[B(a)P]遗传毒性的影响。
- The solubility of the catalyst was improved by mixed solvents.A high brominated polysty rene was prepared. 通过溶剂复配提高催化剂的溶解性,制备高浪含量溴化聚苯乙烯;
- We observe photophysical and electrochemistry property of biphenyl imide by substitutent group effect. 藉由取代基效应观察化合物光物理性质及电化学特性的改变。
- It is considerable to develop production of some types of brominated flame-retardants to a certain extent in China. 在我国,近期内适度发展某些溴系阻燃剂仍是可以考虑的,但在确定品种和规模上,应慎之又慎。
- Intramolecular photoinduced charge transfer can be efficiency by restricting biphenyl group to make it more conjugate. 藉由分子结构的限制,使联苯间的共轭性质变好,使分子内能有效的产生光致电荷转移。
- The catalytic activity of brominated anthracene catalysts was relatively low and was seldom reported. 非溴催化体系的研究主要集中于氮氧自由基催化剂。
- Methods:A new synthesis route for felbinac preparation was studied with biphenyl under ultrasound. 方法:以联苯为原料,在超声催化作用下合成新药联苯乙酸。
- Then they can be further recrystallized to produce biphenyl with a purity of over 99.9%. 进一步用溶剂结晶法去除了联苯中的杂质;获得99.;9%25以上联苯。
- Fine Chemical and Hi-Tech Products : Organic synthetical technical biphenyl; Organic synthetical technical diphenyl. 国内外贸易:公司拥有进出口权,开展以企业产品为主的国内外商品贸易与技术贸易。
- Greenpeace International organizations in the latest report, the most concerned about the brominated flame retardants and the use of PVC. 国际绿色和平组织在最新报告中最为关心的是溴化阻燃剂和聚氯乙烯的使用。
- Fine Chemical and Hi-Tech Products : Organic synthetical technical biphenyl;Organic synthetical technical diphenyl. 精细化工高科技产品生产:有机合成专用活性联苯、有机合成专用活性二苯醚。
- Chlorinated and brominated plastics is known worldwide to cause the emission of polychlorinated and polybrominated dioxins. 氯化和溴化塑料是全世界公认的会导致多氯联苯和多氯二恶英的排放。