1) 2,4-dichlorotoluene
2,4-二氯甲苯
1.
New process of 2,4-dichlorotoluene and analysis on benefit of economic and environment protection;
2,4-二氯甲苯新生产工艺及经济环保效益分析
2.
Some measures were adopted in the synthesis of 2,4-dichlorotoluene, such as slowing the stirring rotation rate of the reactor, improvement of chlorine addition to improve the reaction conditions yield of chlorination reaction, chlorine utilization and selectivity of 2,4-dichlorotoluene significantly.
采用降低反应釜搅拌转速、改进通氯方式、降低反应温度等方法,改善了2,4-二氯甲苯合成的反应条件。
3.
To solve the problem existed in the synthesis process of 2,4-dichlorotoluene, improvement on this process had been made and the optimal process conditions were established in which the reaction temperature (40 ℃) and speed of agitation (30 r/min) were determined and several tubes used to feed chlorine.
针对目前国内2,4-二氯甲苯生产合成工艺中存在的问题,改进了合成工艺,最佳工艺条件为反应温度40℃,转速30r min以及多管道通氯,使氯化收率提高至75%,氯气利用率提高至90%。
2) 2,4-Dichlorobenzoic acid chloride
2,4-二氯苯甲酰氯
3) 1,3-Dichloro-4-(trichloromethyl)benzene
2,4-二氯三氯甲苯
4) 2,4'-Dichlorobenzophenone
2,4'-二氯二苯甲酮
5) 2,4-dichlorobenzaldehyde
2,4-二氯苯甲醛
1.
In this article, 3-chloro-4-methyl aniline is used as initial material, and 2,4-dichlorobenzaldehyde is synthesized through 4 steps of diazotization, sandmeyer reaction, chlorination and hydrolysis.
2,4-二氯苯甲醛是杀菌剂烯唑醇等农药品种的有机中间体。
2.
An analytical method of 2,4-dichlorobenzaldehyde by RP-HPLC has been established.
建立了对2,4-二氯苯甲醛含量进行测定的反相高效液相色谱法。
6) 2,4-dichloro-5-fluorotoluene
2,4-二氯-5-氟甲苯
补充资料：2,4-二氯甲苯
分子式 Cl2C6H3CH3
CAS号 95-73-8
性质 无色透明液体。熔点-13.5℃。沸点201℃。相对密度1.250(20/20℃)。折射率nD(22℃)1.5480，nD(20℃)1.5511。经氧化可生成品率，4-二氯苯甲酸。
用途 医药,染料中间体
毒性 本品有毒。大鼠经口LD50为4640mg/kg。操作场所注意通风良好，设备密闭，操作人员穿戴防护用具。
包装储运 本品遇明火燃烧，应贮于阴凉通风处，远离火源、热源，与氧化剂分开存放，与食品，饲料，种子分开存放，注意保持包装完整。按易燃物品规定贮运。
CAS号 95-73-8
性质 无色透明液体。熔点-13.5℃。沸点201℃。相对密度1.250(20/20℃)。折射率nD(22℃)1.5480，nD(20℃)1.5511。经氧化可生成品率，4-二氯苯甲酸。
用途 医药,染料中间体
毒性 本品有毒。大鼠经口LD50为4640mg/kg。操作场所注意通风良好，设备密闭，操作人员穿戴防护用具。
包装储运 本品遇明火燃烧，应贮于阴凉通风处，远离火源、热源，与氧化剂分开存放，与食品，饲料，种子分开存放，注意保持包装完整。按易燃物品规定贮运。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条