Identification the impurities of the triethyl phosphite by gc - ms and study on the technics of synthesis 联用技术鉴定亚磷酸三乙酯中杂质并探讨其合成工艺
2.
Jcig lianhua welfare chemical industry factory - specialized producer of triethyl phosphate , methyl phosphate , methyl dichloroacetate , stannous oxide , and palladium chloride [吉化集团吉林市联化福利化工厂生产磷酸三乙酯、氯化钯等二种化工产品。
3.
The three national champions we hold now are the production of phosphorus oxychloride , the selling volume of 1 - phenyl - 3 - methyl - 5 - pyrazolone and the export capacity of triethyl phosphate 拥有通过国家评定的质检中心和一流的全的质检仪器，已获英国劳氏的iso9002国际认证。
4.
Using ethyl cyanoacetate , triethyl orthoformate and methylhydrazine as main raw materials , the herbicide pyrazosulfuron was prepared through the reactions of substitution , amination , cylclization , diazotization and chlorosulfonation 摘要以氰乙酸乙酯、原甲酸三乙酯和甲肼等为主要原料，通过取代、胺化、环化、重氮化和氯磺化等反应制得了除草剂吡嘧磺隆原料药。
5.
Authority reports that three national champions we hold now are the production of phosphorus oxychloride , the selling volume of 1 - phenyl - 3 - methyl - 5 - pyrazolone and the export volume in europe of triethyl phosphate . in addition , our p - methoxybenzoic acid has good reputation in japanese market 据国家权威机构统计：氧氯化磷在全国产量最大1 ， 3 ， 5 -吡唑酮在全国销售量最大磷酸三乙酯出口量最大对甲氧基苯甲酸在日本也有一定知名度。
6.
The synthesis process of acetimidoyl ethyl ether hydrochloride was introduced , and the preparations of acetamide , ethyl acetate , acetamidine hydrochloride , triethyl orthoacetate , n - cyan - iminoester hydrochloride and hydrazone by acetimidoyl ethyl ether hydrochloride were summarized 摘要介绍了亚氨基乙醚盐酸盐的合成工艺，总结了亚氨基乙醚盐酸盐制备乙酰胺、乙酸乙酯、盐酸乙脒、原乙酸三乙酯、 n -氰基乙亚氨酸乙酯以及腙类化合物的合成方法。
