氯甲烷

The synthesis of 1,2-dimethoxybenzene from chloromethane combined with pyrocatechol is introduced in this artcile.

本文介绍了以氯甲烷和邻苯二酚为原料合成1，2-二甲氧基苯的方法。

The chloromethane -containing waste gas was treated by catalytic oxidation process and the affecting factors were studied.

用催化氧化法处理氯甲烷废气，考察了各种因素对催化氧化处理效果的影响。

The thermal stability of the end-capped copolymers is improved after inletting chloromethane gas under certain conditions.

采用一氯甲烷对共聚物进行封端，封端后聚合物的10%的热失重有所上升。

The raw materials are roughly the same,including wood pulp or good cotton as raw materials and chloromethane and epoxgpropane.

原料也基本相同，主要原料为木浆或精制棉，醚化剂为氯甲烷和环氧丙烷等。

This technique pro-duced not only N-phosphonomethyliminodiacetic acid with high quality but also a great deal of chloromethane by the hydrolyzation of dimethyl phosphite and methylal .

提供了一种利用亚磷酸二甲酯残液(亚磷酸二甲酯生产过程中的副产)和甲缩醛(甘氨酸法生产草甘膦过程中的副产)为原料来合成双甘膦的方法，采用该工艺可以合成高含量的双甘膦，而且利用亚磷酸二甲酯残液和甲缩醛的充分水解可生成大量的氯甲烷，从而大大提高上述副产物的综合利用价值，具有很好的发展前景。

Methanol can be further processed to hundreds of organic products, such as formaldehyde, MTBE, acetic acid, sodium methoxide, chloromethane , methyl formate, formamide, 2-methyl formamide etc., the demand for those will be expand in future:① in 2000, the production of formaldehyde is 2,068,000 tons, along with our country continue reinforce the infrastructure, the consumption of formaldehyde will increase rapidly.

甲醇可深加工的有机化工产品有上百种，如甲醛、 MTBE、醋酸、甲醇钠、氯甲烷、甲酸甲酯、甲酰胺、二甲基甲酰胺等等，预计这方面的需求今后会有适度发展：① 2000年我国甲醛产量达206.8万吨，近年随着我国基本建设的不断加强，甲醛消费量增长迅速。

The honey samples were dissolved in water and acetone and then extracted with hexane- chloromethane, cleaned by C18 SPE cartridge, determined by gas chromatographic electronic capture detector.

蜂蜜样品用水溶解后，经正己烷-二氯甲烷提取，提取液经C18固相萃取小柱净化，采用气相色谱仪电子捕获检测器定量测定。

Main business scope: polyformaldehyde methylal methanol sodium nitrite sodium sulfide protopine xylene glacial acetic acid soda ash Ethyl acetate ion-exchange membrane caustic soda Chloromethane AEO-9 polyethylene glycol and other major raw materials and products.

多聚甲醛甲醇甲缩醛亚硝酸钠硫化碱片碱二甲苯纯碱冰醋酸醋酸乙酯离子膜烧碱 AEO-9 氯甲烷聚乙二醇等主要原料和产品。

Methanol. Chloromethane.

甲醇。氯甲烷。

Objective To study the influences of dichloromethane extraction from crude and processed Cornus Officinalis on bone marrow cells of aging mice induced by D-galactose.

目的 研究山茱萸生、制品二氯甲烷萃取部位对D-半乳糖致衰小鼠骨髓细胞的影响。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。