丁基

However,using THEIC initiator,the reaction rate for epichlorohydrin is faster than that of propylene oxide and 2-butoxyxirane,respectively.

在THEIC体系,就链引发而言,环氧氯丙的大于环氧丙、丁基醚环氧。

Objective:To develop a GC-MS approach for the determination of tripropyltin(TPrT),tributyltin(TBT) and triphenyltin(TPhT) in fish.

立水产品中三丙基锡、三丁基锡和三基锡的气相色谱-质谱(GC-MS)分析方法。

Carbon tetrabromide was prepared from acetone and sodium hypobromite by adding tetrabutylammonium bromide.The yield and purity were very satisfactory.

向次溴钠溶液中滴加适量的丙酮,在四丁基溴铵催下,高产率得到四溴碳。

With the raising of partial hydrogen pressure, the cracking reaction of tert-butylbenzene is prompted, while the conversion of butylbenzene is restricted.

叔丁基的转率随氢分压的升高而提高，正丁基的转率随氢分压的升高而降低。

A review is mainly on the application of butylrhodamine B, rhodamine 6G and tetrabromofluorescein dyes in extraction spectrophotometric and flotation spectrophotometric analysis.

本文对丁基罗丹明B、罗丹明6G和四溴荧光素在萃取光度法和浮选光度法中的应用做了综述。

N butyl 2 ethoxy thioacridone was prepared from o chloro benzoic acid and p phenetidine by means of Ullman reaction,cyclization,N alkylation and sulfurization.

以邻氯和对氧基胺为原料,经过胺的基、二芳胺的环、N-基、硫代反应合成了N-丁基-2-氧基硫代吖啶酮。

The main materials we used are including silicone rubber, fluorubber, natural rubber, neoprene rubber, EPDM, butyl rubber, polyurethane, polyethylene, EVA, ABS, PP, and PVC.

使用的原料有硅橡胶、氟橡胶、天然橡胶、氯丁橡胶、三元丙橡胶、丁基橡胶、聚氨脂橡胶、聚烯、聚丙烯、EVA、ABS、PP、PVC等。

Generally resistant to animal and vegetable fats, oils, greases, ozone, heat, and strong oxidizing chemicals. Chlorobutyl has lowest permeability of all the synthetic rubbers.

通常适用于动物脂肪或植物油、油、油脂、臭氧、热，以及强氧剂。氯丁基橡胶在所有合成橡胶中的渗透性是最低的。

The technical advantages and disadvantages of natural rubber liner, chloroprene rubber liner, precuring butyl rubber liner and room temperature self-vulcanization butyl rubber liner are compared.

对比了天然橡胶衬里、氯丁橡胶衬里、预硫丁基橡胶衬里、室温自硫丁基橡胶衬里的技术优缺点。

Both volumetric method and gravimetric method can be used for determination of Zn in thiofide ZDBC.The gravimetric method is easy to operate but it spents more analysis time.

容量法和重量法均可用于测定橡胶硫促进剂二丁基二硫代氨基锌(ZDBC)中的锌含量。

As shown by study the extracting powers of two extraction agents are changed with acidy of developer extracting power N,N-diphenyl glycine is stronger than N-n-butyl glycine for 5 metal ions.

N，N—二基甘氨对5种金属离子的萃取能力强于N—正丁基甘氨。