2,3-Dichloro-5-trifluoromethylpridine is a key intermediate of synthesis pesticides of insecticide chlorfluazuron.
2,3-二氯-5-三氟甲基吡啶是杀虫剂氯氟脲类合成农药的关键中间体。
Uses: 2, 3-dichloro-pyridine mainly used as pharmaceutical and pesticide intermediates.
用途：2,3 -二氯吡啶主要用作医药和农药中间体。
The dichloro-quinoxaline-type pigment matrix is provided with at least one dichloro-quinoxaline group.
二氯喹喔啉基型色素母体具有至少一二氯喹喔啉基。
The mixture was cooled and the crystalline product 2,8-dichloro-5-fluoronicotinic acid (III) was isolated by centrifugation and dried.
冷却混合物，结晶产物2，8-二氯-5-氟烟酸（III）以离心分离法得到并干燥。
Chapter 3 is the research on porous plastic fiber optical probe for ammonia with the indicator of 2,7-dichloro-3,6-acrylate ester fluorescein.
第三章为以二氯二丙烯酸酯为指示剂的多孔塑料光纤氨化学传感探头的研究。
This paper reported the synthetic method of 2, 4-dichloro-3, 5-dinitrotrifluorotoluene. The effect of temperature, time, and catalyst on yield were studied.
论还了2，4-二氯-3，5-二硝基三氟甲基苯的合成方法；对影响收率的反应温度，反应时间和催化剂进行了研究。
Activated carbon was used as the catalyst for catalytic oxidation of 1,1-dichloro-2,2,2-trifluoroethane(HCFC-123) to trifluoroacetyl chloride(TFAC) in fixed bed reactor.
在连续流动固定床反应器上，以氧气为氧源，活性炭作为催化剂用于催化氧化三氟二氯乙烷（HCFC-123）制备三氟乙酰氯（TFAC）的反应中。
The fluorescence quantum efficiency of oxazine 1perohlorate in1-dichloro-ethane was measured with photoacoustic speetroscopy in which the fluorescence quenching wag used.
利用光声光谱技术，采取猝灭的方法对（口恶）嗪1高氯酸盐的二氯乙烷溶液进行荧光量子效率的测量。
Abstrat:2,3-Dichloro-5-trifluoromethylpridine is a key intermediate of synthesis pesticides of insecticide chlorfluazuron , herbicide haloxyfop and bactericide fluazinam .
前言：2，3-二氯-5-三氟甲基吡啶是合成农药杀虫剂定虫隆、除草剂吡氟氯禾灵和杀菌剂氟啶胺的关键中间体。
The structures, principles, and characteristic of three-dimensional mass transfer tray (LLC-Tray) was introduced and applied to chloroprene-dichloro-butene distillation process.
介绍了立体连续传质塔板的结构、原理、特性，并经设计后应用于氯丁二烯-二氯丁烯精馏过程中。
Cyanuric acid is a main raw material for sodium dichloro-isocyanuric and trichloro-isocyanuric acid production which are high-efficient healthy reagents for eliminating algae germcide.
氰尿酸是高效除藻剂二氯异氰尿酸钠（钾）和三氯异氰尿酸的主要原料， 尿素热解法生产氰尿酸的传统工艺会产生大量的含氨气体和大量不同浓度的酸性废水。
The technology of synthesizing 2,4-dichloro-5-fluoro-acetophenone was studied. The favorable economic benefit was obtained when the result of study was applied to industrial production.
本文对2，4-二氯-5-氟苯乙酮的生产工艺进行了研究和探讨。将研究结果应用于工业生产，取得了良好的经济效益。
The invention relates to a dye composition for lens. The dye composition comprises a dichloro-quinoxaline-type pigment matrix, a hydrophilic polymer matrix and a vinyl-type binding agent.
本发明涉及一种镜片用的染料组合物包含一二氯喹喔啉基型色素母体、一亲水性聚合母体以及一乙烯基型连结剂。
In Chapter 3, a method for determination of biotics pesticide 2, 3-dichloro-n, N-dimethylpropyl-amine hydrochloride in aqueous has been developed by capillary gas chromatography in detail.
第三章详细地研究了毛细管气相色谱法测定水溶液中仿生农药n, N一二甲基一2,3一二氯丙胺盐酸盐含量的分析方法。
Dichloro - dimethyl hydantoin is white powder or granules containing 64. 45 % avail able chlorine.
二氯二甲基海因为含64. 45 %有效氯的白色粉末或颗粒。
Synthesis, Crystal and Molecular Structure of Dichloro 1, 3 Bis (3, 5 Dimethylpyrazolyl) Propane Palladium.
二氯1,3 -二(3,5 -二甲基吡唑)丙烷合钯的合成及晶体和分子的结构。
In this paper, the synthesis of dichloro (phthalocyanino) silicon is studied. Dichloro (phthalocyanino) silicon is obtained by adding the product into methanol.
对二氯硅酞菁的合成进行了研究，并采用甲醇析出法分离出生成的二氯硅酞菁。
A study on the mass spectrometric cleavage of 1, 1—dichloro—2—ethyloxy—2—AryIolefins by metastable ions and precise mass measurement is reported.
本文报道通过亚稳离子和精确质量测定，讨论了1，1—二氯—2—乙氧基—2—芳基烯烃的质谱裂解规律。
A study on the mass spectrometric cleavage of 1, 1—dichloro—2—ethyloxy—2—AryIolefins by metastable ions and precise mass measurement is reported.
本文报道通过亚稳离子和精确质量测定，讨论了1，1—二氯—2—乙氧基—2—芳基烯烃的质谱裂解规律。
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