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- Acetylacetone was synthesized by using boron trifluoride etherate as catalyst. 采用三氟化硼-乙醚络合物为催化剂,由丙酮和乙酸酐一步法反应合成乙酰丙酮。
- The method employs deriva-tization of the acids to their esters using boron trifluoride -methanol,seperated by 5%DEGS +1%H 3 PO 4 column. 样品采用三氟化硼-甲醇溶液酯化;用质量分数为5%25DEGS+质量分数为1%25H3PO4高效色谱柱分离。 结果:EPA、DHA的回收率分别为96.;2%25±3%25和95
- One chemical substance which the boron trifluoride nitrogen is produces liquid crystal monitor, semiconductor and when solar cell board uses. 三氟化氮是生产液晶电视显示器、半导体和太阳能电池板时所使用的一种化学物质。
- Hydroxyalkyal lignin was epoxidized by epichlorohydrin catalyzed via boron trifluoride etherate to form lignin-based epoxy resin. 以三氟化硼乙醚为催化剂,丙氧基化改性的麦草碱木质素与环氧氯丙烷反应合成木质素基环氧树脂。
- The boron trifluoride (BF3) is supplied with excellent quality in a long term steadily, both through imported product and domestic one. 本公司长期提供高质量的国产和进口三氟化硼（BF3）气体，价格有竞争力，售后服务完备。
- Furthermore, polypyrene microsheets with crystalline structure also have been synthesized in the medium of boron trifluoride diethyl etherate.1. 另外还在三氟化硼乙醚介质中制备出了具有晶体结构的聚芘微米片。
- Crystalline polypyrene microsheets were electrosynthesized in the medium of boron trifluoride diethyl etherate for the first time. 4.;在三氟化硼乙醚介质;电聚合芘首次制备出结晶型的聚芘微米片。
- The article studied the technology of synthesizing benzeneacetic acid.Benzeneacetic acid was synthesized from acetophenone with boron trifluoride as oxidizer. 研究了苯乙酸的合成工艺,以苯乙酮为原料,在四醋酸铅的氧化作用下合成苯乙酸。
- In addition, a series of the new ionic liquids were prepared by using the complex reaction between boron trifluoride ether solution and an alkyl-substituted imidazolium halid. 利用三氟化硼乙醚络合物与烷基取代咪唑卤化物之间的络合反应制备出了一系列含[BF3X]阴离子的新型离子液体，制备方法简单，具有可操作性。
- Reaction of ferrocenylphenylcarbinol with ethereal solution of boron trifluoride in dichloride methane formed the relevant ferrocenylphenylmethyl carbocation. 二茂铁基苯基甲醇与三氟化硼-乙醚溶液在二氯甲烷中作用,形成二茂铁苯基甲基碳正离子。
- Hydroxyalkyal lignin was synthesized from alkali lignin with propylene oxide.Then it was epoxided by epichlorohydrin catalyzed via boron trifluoride etherate to form ligninbased epoxy resin. 摘要以碱木质素为原料，三氟化硼乙醚为催化剂，用环氧丙烷对碱木质素进行丙氧基化改性后，与环氧氯丙烷反应合成木质素基环氧树脂。
- Gases for electronic industry--Boron trifluoride GB/T14603-1993电子工业用气体三氟化硼
- boron trifluoride proportional counter 三氟化硼正比计数管
- boron trifluoride ether solution 三氟化硼乙醚溶液
- enriched boron trifluoride proportional counter 富化的三氟化硼比例计数器
- enriched boron trifluoride neutron detector 富化的三氟化硼中子探测器
- Keywords boron trifluoride;alkane t isomerization; 三氟化硼;烷烃;异构化反应;
- boron trifluoride ether complex... 三氟化硼乙醚络合物
- boron trifluoride filled counter 三氟化硼计数管
- Boron trifluoride diethyl etherate 三氟化硼乙醚
