查询词典 chlorhydric

The synthesis method comprises the following steps: adding 2-( 5-(dimethylamino methyl- 2- furyl methyl sulpho ethylamine and 1- methylthio- 1- methylamino- 2- nitro ethylene with a molar ratio of 1.04: 1 into water, heating to 48- 52 Deg. C, reacting 4.5 hours with a vacuum degree of 0.02- 0.05 MPa, cooling, adding sodium-hydroxide of concentration of 10% to regulate the PH value to 11.0- 11.4, filtrating and cooling the filtrate to 0- 2 Deg. C, crystallizing for 12 hours, centrifugally filtrating, and rinsing filter cake with purity water to prepare wet ranitidine alkali; dissolving ranitidine alkali in alcohol and reacting with chlorhydric acid to prepare ranitidine hydrochloride.

合成方法包括：将摩尔比为1.04∶1的2-(5-(二甲氨基甲基-2-呋喃基甲基硫代乙胺与1-甲硫基-1-甲胺基-2-硝基乙烯加入水中，升温至48-52℃，于真空度0.02～0.05MPa反应4.5小时，反应完毕降温，用10％氢氧化钠溶液调pH＝11.0-11.4，抽滤，滤液降温至0～2℃，结晶12小时，离心甩滤，用纯化水漂洗滤饼，得雷尼替丁碱湿品；将雷尼替丁碱溶于乙醇中与盐酸反应，制备得到盐酸雷尼替丁，产品符合欧洲药典标准。

FGD gypsum further into α-form calcium sulfate hemihydrate by heating in an aqueous solution consisting of some alkail earth metal salts and sulfuric acid or chlorhydric acid at the atmospheric pressure has been studied in this subject.

FGD残渣在碱土金属盐类的盐溶液中，在丁二酸、丙三醇等结晶改良剂的作用下，与大气压下加热脱水生成α半水石膏。

Stable Vitamin K 3 is synthesized by addition reaction of raw materials of niacinamide, chlorhydric acid and menadione sodium bisulfite at 25℃.

以烟酰胺、盐酸为原料，在 2 5℃反应得烟酰胺盐酸盐溶液，而后与亚硫酸氢钠甲萘醌发生加成反应，反应的物料配比为：n ∶ n ∶ n =1∶1。

When a chlorhydric acid tank arrived at the power station of Harbin Petrochemical Company, it was kept for a whole winter months at a temperature of - 38℃.

中国石油天然气股份有限公司哈尔滨分公司电站车间的一台盐酸储罐进厂后曾在严寒环境(-38℃)放置了一个冬天，致使内壁村胶层质量受到了影响，储罐投用一个月后便发生了腐蚀泄漏事故。

Under technological conditions such as: room temperature, current density 200 A/m^2, anolyte acidity 0.5 mol/L chlorhydric acid, acidity of catholyte 1.5 mol/L chlorhydric acid, circulation of anolyte and catholyte 40 L/h, Ni(superscript 2+) concertration 0.85 mol/L, and the average cell voltage 1.3 V, the electricity consumption of dissolving a ton of nickel base alloy is 813 kWh, and the Ni(superscript 2+) retention rate of the ion exchange membrane is more than 99.5%.

在电流密度200 A/平方公尺、阳极酸度0.5 mol/L、阴极酸度1.5 mol/L、循环量40 L/h、Ni(上标 2+)浓度0.85 mol/L左右和室温的条件下电解，平均槽电压1.3 V，电溶1 t镍合金板耗电813 kWh，阴离子交换膜对镍的截留率大於99.5%。

First, combined with the corrosion mechanism of carbon steel in chlorhydric acid, the relation between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles are developed in terms of Hansch Relation.

最后，运用灰色理论，通过建立苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀性能与分子结构关系的灰色缓蚀模型，研究了苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀性能与分子结构的关系。

At last, the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles are studied by constructing the grey inhibition model of the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles.

通过对2—苯基丁腈缓蚀性能的理论预测和试验验证，认为利用某一类苯腈类化合物的缓蚀性能与分子结构关系，从理论上预测同类型苯腈类化合物的缓蚀性能是可能和合理的。灰色理论研究结果表明，苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀性能与分子结构参数的关系，可用GM（0，3）模型描述。

It has been identified whether chlorhydric acid or baicalin not. Chlorhydric acid and baicalin of preparation exist or not in by Tlc-scanning Method. This detective index could be used to control the quality of Shuanghuanglian Oral Liquid preparation. To determine the content of chlorphenamine maleate and baicalin by HPLC and UV-2000 and regulate the minimum limit as the control of preparation quality, in order to insure clinical management rationality, safety and usefulness.

通过薄层色谱鉴别口服液制剂中金银花、黄芩等药味的存在，并且金银花、黄芩分别以绿原酸、黄芩苷为考察指标，并采用HPLC、UV-2000测定金银花、黄芩进行含量测定，规定其下限作为制剂的质量控制指标，以保证临床用药的合理性、安全性和有效性。

ABSTRACT Inhibition mechanism and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles whose inhibition is caused by chemical adsorption and quaternary ammonium salts whose inhibition is caused by physical adsorption are mainly studied from microscope through quantum chemistry calculation, and the relations between inhibition efficiency and molecular structure of inhibition of carbon steel in chlorhydric acid by benzene nitriles are studied by making use of model-constructing thought of grey theory in this paper.

本文主要通过量子化学计算，从微观角度研究了化学吸附型缓蚀剂苯腈类化合物和物理吸附型缓蚀剂季铵盐在盐酸溶液中对碳钢缓蚀的缓蚀机理和缓蚀性能与分子结构的关系；并运用灰色理论建模思想，研究了苯腈类化合物在盐酸溶液中对碳钢缓蚀的缓蚀性能与分子结构的关系。其中，通过量子化学计算，从微观角度研究物理吸附型缓蚀剂在盐酸溶液中对碳钢缓蚀的缓蚀机理和缓蚀性能与分子结构的关系，是在尝试着进行；而运用灰色理论建模思想，研究缓蚀剂缓蚀性能与分子结构的关系，是一项具有尝试性和开拓性的工作。

For usual acid"s leaching out efficiency is low for Gallium in fly ash, we did some analysis on fly ash which drew out or not through X-ray, electron probe, and scan electron microscopy chlorhydric acid .And those analysis gave us rational explain that the low leaching out efficiency for Gallium from fly ash with chlorhydric acid"s draw out juice.

针对常规酸对粉煤灰中镓浸出率偏低这一现象，我们通过X-射线、电子探针和扫描电镜对盐酸浸出反应前后粉煤灰的分析，对盐酸浸出粉煤灰中镓的浸出率低作出了合理的解释。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。