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In this paper, the mechanism of leaching of silver chloride by ammonia and the influences of concentration of ammonia, pH value of the solution and concentration of chlorine ion on the solubility of silver were studied.

摘 要:作者利用配合物化学理论,对氯化银在氨水中的溶解度进行一系列计算,结果表明氨水浸出氯化银时,氨浓度、pH值、氯离子浓度对氯化银溶解度都有影响。

The viscosity and heat conductivity of magnetized ammonia-water with magnetizing intensity of 0 to 0.14 [0.26] tesla and magnetizing time of 10 to 30 minutes are measured by the method of Engler viscosity measurement and transient double wire measurement.

分别采用恩氏粘度法和瞬态双热线法测量装置,对不同磁化强度和磁化时间的氨水粘度和导热系数进行了测量,氨水溶液浓度为25%,磁化强度范围0~0.26T,磁化时间10~30min。

Although there are few of impurities in haloid water, in order to ensure the quality of the products, we have to purify it.

选出了最佳的三者之间用量关系,为:卤水用量:氨水用量=卜0.221;氨水用量:碳酸氢馁用量=1:0.61。

Methods: According to the mechanism of cough reflex, the c-fibres's role in the respiratory system, and the principle of isosterism. Here, a peripheral antitussive LD was regarded as a lead compound. Amino functional groups, as substituents at the 1-hydroxy group of the racemate of LD, were introduced into the structure of the molecule. These novel compounds were confirmed by 1H-NMR, MS spectrum. Their antitussive activities were studied on mice in sequential method. The EDT50, the stimulating time that caused cough by NH3 on half of mice, were measured. Then could caculated the ratio R between the EDT50 of the treated groups and control group.

根据咳嗽反射的机制及C-纤维在呼吸系统的作用,以外周镇咳药左羟丙哌嗪为先导化合物,依据电子等排原理,在其结构中引入氨基以取代羟丙哌嗪分子中1位的羟基,设计一系列未见报道的化合物(01-15);并采用了一条适宜的路线进行合成,通过1H-NMR、MS确证结构;采用&序贯法&实验进行新化合物的镇咳活性研究,动物模型采用氨水引咳小鼠,获得引致半数小鼠咳嗽的氨水刺激时间(EDT50)及给药组EDT50与对照组的比值R。

In the paper, the factors of the pressure of gas-gathering pipes and high-pressured ammonia water was controlled unstably in the period of Linhuan Coking Limited Liability Company began to product were analyzed, then effective methods about how the coke workshop and chemicals workshop coordinate to control the pressure of gas-gathering pipes and high-pressured ammonia water well in production were made.

文章对临涣焦化股份有限公司投产初期集气管压力与高压氨水压力控制中的不稳定因素进行了分析,并对炼焦车间与化产车间在生产中怎样配合来做好集气管压力与高压氨水压力的控制提出了行之有效的方法。

Acylvanadium sulfate is prepared by mixing coal mine containing vanadium, fluorite mine and sulphuric acid, then pumped in the reactive tank, further chemical combination and dissolving, acylvanadium sulfate enters in solution, qualified vanadic oxide is prepared.

本方法是将含钒石煤矿、萤石矿和硫酸调浆后,泵入反应槽中,进行化合和溶解,生成硫酸酰钒而进入溶液,经液固分离后得到含钒浸出液,浸出液经采用铁屑还原、氨水中和、萃取、反萃、氨水沉钒、煅烧等成熟工艺处理后,便产出合格五氧化二钒。

The results confirm that NH3 slip increases with both higher ratio of NH3 to NO n(NH3/n and higher concentration of a reducing reagent, while it decreases with the increase of temperature. Initial NO concentration and its residence time can also affect the NH3 slip. A higher initial NO concentration lead to higher NH3 slip, but added residence time has the opposite effect. Among urea, ammonium carbonate and ammonia liquor, the NH3 slip of urea is the highest and that of ammonia liquor is the lowest.

试验结果表明:温度越高,漏失氨含量越低;随氨氮物质的量比的增加,NH3漏失含量不断增加;还原剂质量浓度越低,NH3漏失含量越低; NO初始浓度和停留时间对漏失氨浓度也有影响,NO初始浓度越高NH3漏失浓度越高,停留时间越长漏失氨浓度越低;不同还原剂NH3漏失浓度不同,尿素、碳酸氨、氨水3种还原剂中,尿素的NH3漏失浓度最高,氨水的NH3漏失浓度最低。

The experiment including the sheet copper and the sulfuric acid and the aqua fortis mixed acid response preparation cupric sulfate and to the test installation improvement, the cupric sulfate solution and the right amount ammonia water response obtained product appraisal, to the cupric sulfate solution and the ammonia water responded the preparation the sulfuric acid four ammonations copper carries on the composition determination.

实验包括铜片与硫酸和浓硝酸的混合酸反应制备硫酸铜及对实验装置的改进,硫酸铜溶液与适量氨水反应所得产物的鉴定,对硫酸铜溶液与氨水反应制备的硫酸四氨合铜进行组成测定。

By using the fact of tar exiscing in surplus ammonia water the SCCP condensation system,the reason of tar existing in surplus ammonia water is analyzed,and the method removing tar is discussed.

对于焦化厂冷凝系统剩余氨水带油的问题,从理论和实践分析了带油原因,并对剩余氨水除油方法进行了探讨。

The solubility of zinc oxide is varied with the changes of the ammonia concentration and the pH, however, the total zinc conc...

氧化锌在氨水溶液中的溶解度随氨水浓度和pH的变化而变化,而当溶液氨浓度为 4mol/L时,总锌浓度 T 保持在 1mol/L左右。

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