查询词典 sulfur chloride

The invention relates to a pipeline polyurea outer anticorrosive coating and the making method thereof, making heated prepolymerization reaction on dibenzo-methane diisocyanate, carbodiimide diisocyanate, polyether binary alcohol and polyether trihydric alcohol to prepare prepolymer solution A, and making end amino polyethylene oxide ether, dimethyl sulfur-based toluene diamine, diethyl diamine, iso-propyl titanate solution, polyacrylate, carbon black, titanium dioxide and lightweight calcium carbonate into solution B, and as using, respectively heating the solutions A and B to 65 deg.C and then mixing them, then quickly spraying and curing to form a coat.

本发明涉及一种管道用聚脲外防腐涂料及制造方法，由二苯基甲烷二异氰酸酯、碳化二亚胺化二异氰酸酯、聚醚二元醇和聚醚三元醇通过加热预聚反应制成预聚物的A液、由端氨基聚氧化乙烯醚、二甲硫基甲苯二胺、二乙基甲苯二胺、钛酸异丙酯溶液、聚丙烯酸酯溶液、碳黑、钛白粉和轻质碳酸钙配制而成的B液组成，使用时将A液和B液分别加热至65℃后混合，然后快速喷涂固化形成涂层。

By comparing the catalytic behavior of S3/MAO and S8/MAO, a conclusion could be drawn that the coordination of the sulfur atom to the titanium center of the active species was essential for ethylene trimerization.

通过比较S3与S8不同的催化性能，可以认为，硫原子对钛活性中心可能存在配位，而这一配位对乙烯三聚反应起重要作用。

Tungsten\|silver\|sulfur cluster ; crystal structure ; triphenylphosphine

钨银硫簇合物；晶体结构；三苯基膦

Through Friedel-Crafts reaction, We have prepared highly purified triphenylphosphine sulfide by using benzene, phosphorus trichloride, sulfur, and aluminum trichloride, which is desulfurized with metal powder to produce triphenylphosphine.

实验方法为以苯、三氯化磷、硫和三氯化铝为原料，利用Friedel-Crafts反应，合成三苯基硫膦，收率为79.4％；然后用金属将三苯基硫膦还原制得三苯基膦，收率为80％。

The characterization of photobiological hydrogen production for four marine green algae by sulfur-deprived and treated with uncoupler after dark anaerobic incubation was investigated.

分别采用培养基中无硫连续光照和厌氧暗诱导后添加解偶联剂光照的方法，研究几株海水绿藻的光照产氢特征。

In this paper, the chemical state of element sulfur in undoped, doped ferric ion samples of two typical photographic gelatin s were studied by X-ray photoelectron spectroscopy.

本文采用X射线光电子能谱技术，研究了国内外典型的两种照相明胶的空白样品、掺杂铁的样品中硫元素的存在形态。

The nitrogen in fossil fuels is more refractory than sulfur, and microbial approaches for petroleum denitrogenation could be beneficial as the classical hydroprocessing methods are costly and unefficient.

化石燃料中所含的有机氮较有机硫更难以去除，常规的化学脱有机氮技术高压加氢法处理燃油能耗高，处理效果不理想等方面的缺陷使人们思考生物脱氮的可能性。

Hydrogen sulfide and element sulfur are the main materials which directly cuase the unqualification of silver strip corrosion during jet fuel hydrotreating .

硫化氢和元素硫是直接造成加氢精制生产过程中银片腐蚀不合格的物质。

The electromagnetic shielding fabric has high conducting performance, is weldble, flexible and ventilative, and can isolates sulfur in insulating material.

采用本发明的方法制备的锡包铜电磁屏蔽纺织品，导电性好，易钎焊，能够隔离绝缘材料中硫的作用，能保持纺织品原有的，如柔软性、透气性、强伸力等风格。

Most commonly, it is caused by volatile sulfur compounds resulting from bacterial metabolism, particularly when oral hygiene is poor or xerostomia is present.

最多的原因是来自于细菌代谢产生的易挥发的硫化物，尤其是口腔卫生不良或口干症时。

You can buy sweetened beverages, if that suits you.

你若喜欢的话，可以买些含有糖精的混合饮料。

As many of you are probably aware, Nick and Vanessa were recently faced with an embarrasing sex scandal after naked pictures of the two getting jiggy with it in a hot tub surfaced the net.

正如很多你可能知道，尼克和 Vanessa 最近面临一个尴尬的绯闻事件后，赤裸裸的图片两个越来越jiggy与它在浴缸中的一个热点浮现净。