查询词典 carbonyl chloride

Various inorganic acid, such as ammonium chloride, copper sulfate, aluminum sulfate, mercury chloride, cerium sulfate and cerium chloride, have been evaluated for copper powder, zinc powder, or tin powder-mediated allylation reactions of carbonyl compounds with allyl bromide in aqueous medium.

结果表明：在同样的反应条件下，与铜粉或锌粉作用的此类反应相比，锡粉能更好的作用羰基烯丙基化反应，并且该反应的产率都比较高；在同样的金属促进剂存在下，硫酸亚铈的促进性能是所有无机酸中最好的。 2、研究了二氧化碳促进羰基化合物烯丙基化反应。

DMC is a green chemical industry product which rapidly developed in the recent years, it can substitute for the organic chemical basic raw material such as the bigger toxic carbonyl chloride, methyl chloride, methyl chloroformate and so on, it is vital significance to the environmental protection.

碳酸二甲酯是近年来迅速发展起来的环境调和型绿色化工产品，它是可用于替代毒性较大的光气、氯甲烷、氯甲酸甲酯等物质的有机化工基本原料，对于环境保护具有重要意义。

Phosgene, or carbonyl chloride, is an extremely toxic gas, and it was used for that purpose during World War I.

光气，又名氯代甲酰氯，是一种巨毒气体，在第一次世界大战中作为毒气使用。

For pre-selection of iron compounds that ferrous sulfate, ferrous chloride, ferrous fumarate, carbonyl iron, amino acid chelated iron, iron asporotate, fenic chloride and ferric pyrophosphate were added in reconstituted skim milk to undergo in vitro digestion, respectively, and then the selected iron compounds were added in reconstituted whole milk to compare the iron bioavailability by estimating dialyzable ferrous iron, dialyzable total iron, nondialyzable and total ferrous iron, respectively.

取硫酸亚铁、反丁烯二酸亚铁、氯化亚铁、艰基铁、Iron asporotate、Amino acid chelated iron、氯化铁与焦磷酸铁等不同铁剂添加於脱脂还原乳中进行体外消化试验，并筛选生物利用性佳之铁剂分别添加於全脂还原乳中，以可透析二价铁、可透析总铁、未透析二价铁及总二价铁等作为评估之指标。

Moreover, based on the petrochemical industrial characteristics, this specification has defined benzene piping with a hypertoxicity level of extremely harmful medium as Grade SHB piping and acrylon, carbonyl chloride, carbon disulfide sulphide and hydrogen fluoride piping with a hypertoxicity level of high harmful medium as Grade SHA piping.

此外，根据石化行业的特点，本规范将毒性程度为极度危害介质的苯管道作为 SHB 级管道处理，将毒性程度为高度危害介质的丙烯腈， 48 SH 3501-2002 光气，二硫化碳和氟化氢管道作为 SHA 级管道处理。

Firstly, the 10-methoxy-5H-dibenzazepine is synthesized through brominating and methoxylation and hydrolyzation from 5H-dibenzb, fJazepine-5-carbonyl chloride.

首先，研究了以5-氯甲酰基亚氨基芪为原料，经溴化、甲氧基化、水解合成了10-甲氧基亚氨基芪。

This Technology adopts green chemical product---Dimethyl Carbonate to substitute carbonyl chloride and exchange with Phenolic Esters to produce Diphenyl Carbonate.

本技术用绿色化工产品碳酸二甲酯代替光气与苯酚酯交换生产碳酸二苯酯，是一条清洁生产工艺。

The invention is characterized in low check limit, high sensitivity, repeat application, and wide check air range, and the invention can be used to check various volatile harmful gas, more particularly check the discharge and leaked harmful gas as NO2, SO2, NO, CO, H2S and carbonyl chloride.

由于本发明传感器具有检测限低，灵敏度高，可重复使用，检测气体范围广等特点，故本发明可广泛用于检测人类生产生活环境中的各种挥发性有毒气体，特别适用于工业生产中NO 2 、SO 2 、NO、CO、H 2 S，及光气等有害气体排放合格性的检测及泄漏的检测。

Hazardous decomposition products : Oxides of carbon, chlorine, hydrogen chloride, possible trace amounts of carbonyl chloride, unidentified organic compounds.

（碳氧化物、氯、氯化氢、散发出微量羰酰氯，其他的有机化合物。

Piperidinecarboxylic acid is used as the raw material and acetic acid as the acylating agent, followed by the addition of some acetic anhydride in the later stage to get an important organic intermediate n-acetylpiperidine-4 carboxylic acid in the yield of 92%. Toluene is used as the solvent instead of sulfinyl chloride in the acyl chlorination to produce n-acetylpiperidine-4-carbonyl chloride with the yield of 97%.

以4-哌啶甲酸为原料、醋酸为酰化剂，后期加入少量醋酸酐反应得到中间体N-乙酰基哌啶－4-甲酸，收率92%；在甲苯溶剂中进行酰氯化得目标产物N-乙酰基哌啶－4-甲酰氯，收率97%。

But we don't care about Battlegrounds.

但我们并不在乎沙场中的显露。

Ah! don't mention it, the butcher's shop is a horror.

啊！不用提了。提到肉，真是糟透了。