查询词典 phosphorus trichloride

Diethylphosphite was prepared from ethanol and phosphorus trichloride at mole ratio of 3.3:1 with the droping temperature at 5-10℃, and reacted under room temperature.

以无水乙醇和三氯化磷为3.3：1的投料量，5～10℃下滴加，室温下反应，制备亚磷酸二乙酯。

For the past years,our products such as Salicylal,Di-tert-butyl dicarbonate,sodium tertbutoxide,Phosphorus trichloride,Trichloromethyl chloroformate enjoy superior reputation home and abroad,some products even fill the domestic blank,products are sold to more than 20 domestic provinces and to japan,Europe,South America,etc.

本厂生产的氧氯化磷、三氯化磷、水杨醛等系列产品以优质的质量享誉国内外，多年以来，我厂依靠科技兴厂，始终坚持&质量第一，用户至上&的宗旨。

The novel title compound was synthesized with benzaldehyde, isobutyraldehyde, phosphorus trichloride as raw materials. The total yield was 40.8%. The structure was confirmed by 1H NMR, 31P NMR and elemental analysis.

摘要以苯甲醛、异丁醛、三氯化磷为原料合成了新型的1，3，2-氧磷杂环类化合物2-苯羟甲基－5，5-二甲基－4-苯基－2-氧代－1，3，2-二氧磷杂环己烷，总收率为40.8%，并对其进行了NMR研究和结构表征。

Company and the Chinese Academy of Sciences Institute of Chemistry, Nanjing University of Technology Institute of Chemical Technology has a good technical cooperation, product quality can meet the needs of different customer requirements, in particular, high content, low-arsenic, low lead, low-iron phosphorus trichloride, oxychloride P-selling more than a dozen provinces and cities nationwide, autonomous regions and exported to Europe, Southeast Asia and Taiwan, production and sales and market share in the same industry in the country ranked the top three, Jianping people adhere to the "credibility first, customer first, service first" operating purposes, warmly welcome customers at home and abroad to discuss cooperation with our company.

公司与中科院化学研究所、南京工业大学化工学院有着良好的技术合作，产品质量能满足不同客户的要求，尤其高含量、低砷、低铅、低铁的三氯化磷、三氯氧磷畅销全国十几个省市、自治区及出口到欧洲、东南亚和台湾地区，产销量和市场占有率在全国同行业中居前三甲，建平人恪守&信誉第一、顾客至上、服务至上&的经营宗旨，热忱欢迎国内外客户与我公司洽谈合作。

Dimethyl phenyl phosphonite had been synthesized from benzene, phosphorus trichloride and methanol in two steps.

以苯、三氯化磷、甲醇为主要原料，经两步反应合成了苯基亚膦酸二甲酯，并通过正交实验优化了合成条件。

The experimental results show that the optimum conditions were as follows: molar ratio of pentaerythritol to phosphorus trichloride to bisphenol A was 1.0:2.8:2.0, the first and the second reaction held for about 3 h on the conditions of refluxing.

试验结果表明：反应溶剂为苯，用量为50 mL；物料配比〔m：m：m〕为1.0：2.8：2.0；第一步和第二步均回流反应3h。

And under the condition of stirring, a small quantity of chlorobenzene and a proper quantity of initiating agent can be added, and the mixed solution prepared by using chlorobenzene , phosphorus trichloride and organic solvent can be slowly drop-added until the reachion is completed.

在高速搅拌下，加入少量的氯苯及适量的引发剂，然后缓慢滴加氯苯、三氯化磷和有机溶液的混合溶液直至反应完成。

The heaxamethylene-diamine, 2-chloroethylene-sulfonate, fatty acid and Phosphorus trichloride are used as raw materials and a series of Gemini products are synthesized.

并以己二胺、2-氯乙基磺酸钠、脂肪酸和三氯化磷等为原料合成了一系列的双酰胺双磺酸盐表面活性剂N，N＇-双脂肪酰基己二胺二乙基磺酸钠。

Of Yangquan City was built in 1957, enterprises are equipped with 4 sets of milling machines, 4 sets of wet-sanding machine, Enamel Reactor 6, stainless steel reactor 7, a set of phosphorus trichloride production plant.

阳泉市璜粉有限公司建于1957年，企业装备有4台磨粉机，4台湿式砂磨机，搪瓷反应釜6个，不锈钢反应釜7个，一套三氯化磷生产装置。

Disclosed is a method to prepare 3, 3-dimethyl butyric acid chloride, relating to an organically synthesized intermediated compound and particularly relating to a method to prepare 3, 3-dimethyl butyric acid chloride from 3,3-dimethyl butyric acid and phosphorus trichloride.

3，3-二甲基丁酰氯的制备方法，涉及一种有机合成中间体，尤其是涉及一种由3，3-二甲基丁酸与三氯化磷反应制备3，3-二甲基丁酰氯的方法。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。