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,环氧氯丙烷的大于环氧丙烷、醚环氧乙烷。

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

向次酸钠溶液中滴加适量的丙酮,在四铵催下,高产率得到四碳。

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

建立水产品中三丙锡、三锡三苯锡的气相色谱-质谱(GC-MS)分析方法。

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

叔苯的转率随氢分压的升高而提高，正苯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.

本文对罗丹明B、罗丹明6G四荧光素在萃取光法浮选光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.

以邻氯苯甲酸对乙氧苯胺为原料,经过胺的苯、二芳胺的环、N-烷、硫代反应合成了N--2-乙氧硫代吖啶酮。

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、氯橡胶衬里、预硫橡胶衬里、室温自硫橡胶衬里的技术优缺点。

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。氯橡胶在所有合成橡胶中的渗透性是最低的。

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、氯橡胶、三元乙丙橡胶、橡胶、聚氨脂橡胶、聚乙烯、聚丙烯、EVA、ABS、PP、PVC等。

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.

容量法重量法均可用于测定橡胶硫促进剂二二硫代氨甲酸锌(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—二苯甘氨酸对5种金属离子的萃取能力强于N—正甘氨酸。

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

在THEIC体系,就链引发言,环氧氯丙烷的大于环氧丙烷、丁基醚环氧乙烷。

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

向次溴酸钠溶液中滴加适量的丙酮,在四丁基溴铵催下,产率得到四溴碳。

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

建立水产品中三丙基锡、三丁基锡和三苯基锡的气相色谱-质谱(GC-MS)法。

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

叔丁基苯的转率随氢压的升，正丁基苯的转率随氢压的升降低。

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.

以邻氯苯甲酸和对乙氧基苯胺为原料,经过胺的苯基、二芳胺的环、N-烷基、硫代反应合成了N-丁基-2-乙氧基硫代吖啶酮。

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。

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 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、三元乙丙橡胶、丁基橡胶、聚氨脂橡胶、聚乙烯、聚丙烯、EVA、ABS、PP、PVC等。

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甲酸锌(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—二苯基甘氨酸对5种金属离子的萃取能力强于N—正丁基甘氨酸。

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,环氧氯丙烷的大于环氧丙烷、丁基醚环氧乙烷。

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

向次酸钠溶液中滴加适量的丙酮,在丁基铵催下,高产率得碳。

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

建立水产品中三丙基锡、三丁基锡三苯基锡的气相色谱-质谱(GC-MS)分析方法。

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

叔丁基苯的转率随氢分压的升高而提高，正丁基苯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B、罗6G荧光素在萃取光度法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.

以邻氯苯甲酸对乙氧基苯胺为原料,经过胺的苯基、二芳胺的环、N-烷基、硫代反应合成了N-丁基-2-乙氧基硫代吖啶酮。

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。

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 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、三元乙丙橡胶、丁基橡胶、聚氨脂橡胶、聚乙烯、聚丙烯、EVA、ABS、PP、PVC等。

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.

容量法重量法均可用于测定橡胶硫促进剂二丁基二硫代氨基甲酸锌(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—二苯基甘氨酸对5种金属离子的萃取能力强于N—正丁基甘氨酸。

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,环氧氯丙烷的大于环氧丙烷、醚环氧乙烷。

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

向次溴酸钠溶液中滴加适量的丙酮,在四溴铵催下,高产率得到四溴碳。

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

建立水产品中三丙锡、三锡和三锡的气-质(GC-MS)分析方法。

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

叔的转率随氢分压的升高而提高，正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.

以邻氯甲酸和对乙氧胺为原料,经过胺的、二芳胺的环、N-烷、硫代反应合成了N--2-乙氧硫代吖啶酮。

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、氯橡胶衬里、预硫橡胶衬里、室温自硫橡胶衬里的技术优缺点。

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。氯橡胶在所有合成橡胶中的渗透性是最低的。

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、氯橡胶、三元乙丙橡胶、橡胶、聚氨脂橡胶、聚乙烯、聚丙烯、EVA、ABS、PP、PVC等。

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二二硫代氨甲酸锌(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—二甘氨酸对5种金属离子的萃取能力强于N—正甘氨酸。

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,环氧氯烷的大于环氧烷、丁醚环氧乙烷。

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

向次溴酸钠溶液中滴加适量的酮,在四丁溴铵催下,高产率得到四溴碳。

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

建立水产品中锡、丁锡和苯锡的气相色谱-质谱(GC-MS)分析方法。

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

叔丁苯的转率随氢分压的升高而提高，正丁苯的转率随氢分压的升高而。

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

文对丁罗丹明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.

以邻氯苯甲酸和对乙氧苯胺为原料,经过胺的苯、二芳胺的环、N-烷、硫代反应合成了N-丁-2-乙氧硫代吖啶酮。

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、预硫丁橡胶衬里、室温自硫丁橡胶衬里的技术优缺点。

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。氯丁橡胶在所有合成橡胶中的渗透性是最的。

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、元乙橡胶、丁橡胶、聚氨脂橡胶、聚乙烯、聚烯、EVA、ABS、PP、PVC等。

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二硫代氨甲酸锌(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—二苯甘氨酸对5种金属离子的萃取能力强于N—正丁甘氨酸。

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,环氧氯烷的大于环氧烷、丁基醚环氧乙烷。

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

向次溴酸钠溶液滴加适量的酮,在四丁基溴铵催下,高产率得到四溴碳。

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

建立水产品基锡、丁基锡和苯基锡的气相色谱-质谱(GC-MS)分析方法。

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

叔丁基苯的转率随氢分压的升高而提高，正丁基苯的转率随氢分压的升高而降。

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

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.

以邻氯苯甲酸和对乙氧基苯胺为原料,经过胺的苯基、二芳胺的环、N-烷基、硫代反应合成了N-丁基-2-乙氧基硫代吖啶酮。

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。

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的渗透性是最的。

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、元乙橡胶、丁基橡胶、聚氨脂橡胶、聚乙烯、聚烯、EVA、ABS、PP、PVC等。

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甲酸锌(ZDBC)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—二苯基甘氨酸对5种金属离子的萃取能力强于N—正丁基甘氨酸。

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,环氧丙烷的大于环氧丙烷、丁基醚环氧乙烷。

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

向钠溶液中滴加适量的丙酮,在四丁基铵催下,高产率得到四碳。

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

建立水产品中三丙基锡、三丁基锡和三苯基锡的气相色谱-质谱(GC-MS)分析方法。

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

叔丁基苯的转率随氢分压的升高而提高，正丁基苯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.

苯甲和对乙氧基苯胺为原料,经过胺的苯基、二芳胺的环、N-烷基、硫代反应合成了N-丁基-2-乙氧基硫代吖啶酮。

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、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。

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，及强氧剂。丁基橡胶在所有合成橡胶中的渗透性是最低的。

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、丁橡胶、三元乙丙橡胶、丁基橡胶、聚氨脂橡胶、聚乙烯、聚丙烯、EVA、ABS、PP、PVC等。

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甲锌(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—二苯基甘氨对5种金属离子的萃取能力强于N—正丁基甘氨。

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,环氧氯丙烷的大于环氧丙烷、丁基醚环氧乙烷。

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

向次溴酸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。

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

建立水产品中丙基、丁基苯基的气相色谱-质谱(GC-MS)析方法。

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

叔丁基苯的转率随的升高而提高，正丁基苯的转率随的升高而降低。

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四溴荧光素在萃取光度法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.

以邻氯苯甲酸对乙氧基苯胺为原料,经过胺的苯基、二芳胺的环、N-烷基、硫代反应合成了N-丁基-2-乙氧基硫代吖啶酮。

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。

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 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、元乙丙橡胶、丁基橡胶、聚氨脂橡胶、聚乙烯、聚丙烯、EVA、ABS、PP、PVC等。

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.

容量法重量法均可用于测定橡胶硫促进剂二丁基二硫代氨基甲酸锌(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—二苯基甘氨酸对5种金属离子的萃取能力强于N—正丁基甘氨酸。

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,环氧氯丙烷大于环氧丙烷、丁基醚环氧乙烷。

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

向次溴酸钠溶液滴加丙酮,在四丁基溴铵催下,高产率得到四溴碳。

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

建立水产品三丙基锡、三丁基锡和三苯基锡气相色谱-质谱(GC-MS)分析方法。

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

叔丁基苯转率随氢分压升高而提高，正丁基苯转率随氢分压升高而降低。

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.

以邻氯苯甲酸和对乙氧基苯胺为原料,经过胺苯基、二芳胺环、N-烷基、硫代反应合成了N-丁基-2-乙氧基硫代吖啶酮。

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技术优缺点。

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渗透性是最低。

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

使用原料有硅橡胶、氟橡胶、天然橡胶、氯丁橡胶、三元乙丙橡胶、丁基橡胶、聚氨脂橡胶、聚乙烯、聚丙烯、EVA、ABS、PP、PVC等。

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.

容法和重法均可用于测定橡胶硫促进剂二丁基二硫代氨基甲酸锌(ZDBC)锌含。

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—二苯基甘氨酸对5种金属离子萃取能力强于N—正丁基甘氨酸。