查询词典 sulphur acid

For example, acetylene generated by the carbide process contains arsenical and sulphur compounds, and other impurities, which must be removed by scrubbingwith concentrated sulphuric acid before it is sufficiently pure for reaction with hydrochloric acid (此处有误,应为hydrochloride氯化氢) to produce dichloroethane.

例如，由碳化钙发生的乙炔气含有砷和硫的化合物以及其他的杂质，必须在乙炔有足够的纯度与氯化氢反应制造二氯乙烷之前，用浓硫酸洗去这些杂质。

Molecular formula:2KHSo5·KHSo4·K2so4 (potassium monopersulfate compound),molecular weight:614.7,alias:potassium monopersulfate triple salt, potassium peroxymonopersulfate;vat dyes;reactive dyes;basic dyes;cationic dyes;azoic dyes;solvent dyes;acid dyes;direct dyes;disperse dyes; sulphur dyes;organic

提供产品：单过硫酸氰钾复合物(分子式： 2KHSO5·KHSO4·K2SO4，分子量： 614.7)别名：单过硫酸氰钾三合盐，过氧化单硫酸钾盐；还原染料；活性染料；碱性染料；阳离子染料；偶氮染料；溶剂染料；酸性染料；直接染料；分散染料；硫化染料；有机颜料；无机颜料。

Optimization and modeling of boric acid extraction from colemanite in water saturated with carbon dioxide and sulphur dioxide gases.

在二氧化碳及二氧化硫饱和水溶液中从硬硼钙石提取硼酸最优化方案的研究。

By the Test, we find out the better technological conditions, the results show that the secondary magnetic-spiral and spiral -magnetic are the better flowsheet for the pyrite cinders. Under the action of muriatic acid and hydrofluoric acid, the content of sulphur, silicon, lead, copper are descend to 0.21%, 8.26%, 0.053%, 0.023%. A total iron concentrate containing 62.34% Fe is obtained with recovery of 78.08% Fe.

通过试验，得到较优的工艺条件，结果表明，两段磁选—螺旋溜槽是较适合于该种硫铁矿烧渣的工艺流程；再经HCl、HF等酸浸脱杂降硫除铅，获得品位为62.34％，回收率为78.08％的铁精矿产品，S、SiO_2、Pb、Cu的含量分别降为0.21％、8.26％、0.053％、0.023％。

The anhydride groups and acid chloride groups are preferably derived from carboxylic acid groups or oxyacid groups of sulphur and phosphorus.

该酸酐团体和酰氯团体最好来自羧酸群体或含氧酸硫和磷集团。

Fourier commutation is infra-red and spectral analysis proved sulphur as a result acid radical group is mixed the success of group of carboxylic acid radical introduces, right those who accept branch film is thermodynamic undertook study with chemical character.

傅里叶变换红外光谱分析结果证实了磺酸基团和羧酸基团的成功引入，并对接枝膜的热力学和化学特性进行了探究。

We also found some distinctive metabolism regulation of sulphur amino acid,aminoglutaminic acid and protein in the gene transcription changes following by the addition of taurocholic acid to the minimal medium.

并掌握了在添加牛磺胆酸刺激的情况下，副溶血弧菌在蛋白质、含硫氨基酸和谷氨酸等代谢方面的规律。

A HPLC method was used for analyzing the changes of eight major constituents, namely gallic acid, paeoniflorin sulfonate, catechin, paeoniflorin sulfonate, albiflorin, paeoniflorin, benzoic acid, pentagalloylglucose and benzoylpaeoniflorin, with the three processing procedures of decorticating, boiling and fumigating by burning of sulphur.

采用高效液相色谱法分别分析经去皮、水煮和硫磺熏制3个不同加工阶段后，白芍中没食子酸、儿茶素、芍药苷亚硫酸酯、芍药内酯苷、芍药苷、苯甲酸、五没食子酰基葡萄糖和苯甲酰芍药苷等8种主要化学成分的变化。

Taurine , a ?-amino acid containing sulphur, is vital free acid in the body and perform various biological effects.

牛磺酸是一种含硫的β-氨基酸，是人体内的一种必需的游离氨基酸，有稳定细胞膜和抗氧化等多种生物学效应。

Technological developments in design of very large-scale or over 600 kt/a sulphur -burning sulphur ic acid plants in China are described and the process arrangement, equipment structure and material selection for some typical plants are discussed in detail.

论述我国近年来在设计600 kt／a以上超大型硫磺制酸装置方面的技术进展，详细介绍一些典型装置的工艺布局、设备结构与材料选择。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐