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- tetramethyl phosphonium chloride 氯化四甲基
- tetramethyl phosphonium 四甲基磷翁
- With CFT - 500 capillary reometer, the rheologcal properties of fireproof ing copolyester with phosphonium are studied. 用CFT-500型毛细管流变仪研究磷系共聚阻燃聚酯的流变性能。
- OBJECTIVE To study the protective effect of tetramethyl pyrazine (TMP) on cyclophosphamide injured mice. 目的:考察川芎嗪对小鼠环磷酰胺损伤的保护作用。
- It's intresting that after tanned with phosphonium salt the isometric point goes down firstly,then up. 但是膦盐鞣剂鞣制过后皮胶原的等电点却是先降低后升高。
- The results showed that the yield of 1?1 dichlor 1?1?2?2? tetramethyl disilane was rested on the amount of Grignard agent. 结果发现 ,格氏试剂的加入量决定了 1 1 -二氯- 1 2 2 2 -四甲基二硅烷的产率 ;
- Octane and para tetramethyl benzene were served as the solvent for dissolving sample and internal standard,respectively. 正辛烷和对四甲基苯分别用作样品的溶剂和内标物,采用内标法定量。
- The sterilization efficiency of two quaternary phosphonium salts,BHP 1 and BHP 2,was evaluated by Maximum Probable Number. 采用最大可能计数法对两种季?盐型缓蚀剂BHP 1及BHP 2的杀菌效果进行了评价。
- The 2, 2, 6, 6 - tetramethyl - 4 - piperidinol (piperidinol) was synthssized from catalytic hydrogenation of 2, 2, 6, 6 - tetramethyl - 4 - piperidone. 制备了由2,2,6,6-四甲基-4-哌啶酮催化氢化合成受阻胺类光稳定剂中间体2,2,6,6-四甲基-4-哌啶醇。
- Volumetric method of quinoline phosphomlybdate and ion-exchange method are established for determining the content of tetrakis (hydroxyrnethyl) phosphonium chloride (THPC). 建立了用磷钼酸喹啉容量法和离子交换法测定四羟甲基氯化铁含量的方法。
- Methods Tetramethyl rhodamine(TMR) or horseradish peroxidase(HRP)retrograde tracing and biotinylated dextran amine(BDA) anterograde tracing techniques were used. 方法四甲基罗达明(TMR)或辣根过氧化物酶(HRP)逆行追踪和生物素葡聚糖胺(BDA)顺行追踪技术。
- C. M. Starks, “Phase-transfer Catalysis. I. Heterogeneous Reaction Involving Anion Transfer by Quaternary Ammonium and Phosphonium Salts”, J. Am. Chem. Soc., 93(1), 195 (1971). 张咏钧;“氯化戊烷之相转移催化醋酸根取代以合成醋酸戊酯之研究”;国立中央大学化工硕士论文(1998).
- Hexagonal mesoporous silica were synthesized in acidic medium by using cetyltrimethylammonium bromide (C16TMABr) as template and tetramethyl orthoslicate (TEOS) as silica source. 本文以十六烷基三甲基溴化铵为模板剂,正硅酸乙酯为硅源,在酸性条件下合成了纯硅六方介孔分子筛。
- A analysis method of the bis(2,2,6,6 _ tetramethyl _ 4 _ piperidyl)maleate (BPM) in synthetic reaction solution by ion suppression chromatography is discussed. 建立了用离子抑制色谱法分析二(2,2,6,6-四甲基-4-哌啶基)马来酸酯合成反应液的方法。
- Product Name: Tetramethoxysilane Other Name: Methyl orthosilicate, Tetramethyl silicate,TMOS Chemical structural formula: Si(OCH3)4 Property: Colorless transparent liquid. 用途: 产品名称:四甲氧基硅烷 别名:硅酸甲酯,硅酸四甲酯 分子结构式: Si(OCH3)4 性状:无色透明液体。
- In the process of direct fluoration, tetraphenyl phosphonium bromide, potassium fluoride and sulfolane was used as catalyst, fluorating agent, and high boiling point agent respectively. 将对二氯苯用硝硫混酸硝化获得2,5二氯硝基苯,并以氟化钾为氟化剂,在四苯基溴化膦催化下于环丁砜等高沸点溶剂中直接进行氟化,经水蒸气蒸馏和分馏提纯获得产品。
- Polymer-supported Wittig reagent (polystyryldiphenyl-n-propyl phosphonium bromide) was reacted with 11-oxo-undecanol-1-acetate in the synthesis of ostrinia nubilalis sex pheromone. 采用聚合物支持体Wittig试剂(polystyryldiphenyl-n-propyl phosphonium bromide)与11-十-醛-1-醇乙酸酯反应合成欧洲玉米螟性信息素。
- Na-montmorillonite(Na-MMT) was modified with different quaternary phosphonium salts using ion-exchange method,and the structures and property of modified montmorillonite were studied. 采用离子交换法将不同的季鏻盐交换到钠基蒙脱土的层间得到改性蒙脱土,并对改性蒙脱土的结构和性能进行了研究。
- Concentrate hydrosilicone oil, tetramethyl dihydro disiloxane, hexamethyldisiloxane and D4 were used to synthesize the cross linker of low-hydro silicone oil required in experiments. 以高含氢硅油、含氢双封头、六甲基二硅氧烷、D4合成实验所需的交联剂低含氢硅油;
- Organic-inorganic composite antimicrobial agents can be prepared by a simple ion-exchange reactions through Na-montmorillonite exchanged with Zn2++ and tributyltetradecyl phosphonium in turn. 依次将无机抗菌离子(锌离子)和有机抗菌离子(十四烷基三丁基季鏻盐)插入到蒙脱土中制备出有机-无机复合抗菌剂,其中锌和季鏻盐的含量分别为2。