盐酸的

The phenyl acetate was synthesized from phenyl hydroxide and acetyl chloride by direct esterification and the factors influencing the synthesis were studied.Results showed that the optimal conditions were:n(C6H6O):n(C2H3OCl)=1:1.2,the amount of solvent cyclohexane was 40 mL(compared to 0.15 mol C6H6O),the reaction temperature was 20℃,and the reaction time was 5 h.

乙酸苯酯(分子式C8H8O2)是重要的药物中间体，它可以转化得到邻羟基苯乙酮和对羟基苯乙酮的混合物，可用于治疗急慢性黄疸型肝炎、胆囊炎等疾病，其中邻羟基苯乙酮是合成抗心律失常药盐酸普罗帕酮的重要中间体。

The results show that garlic can obviously slow down the corrosion rate of steel in hydrochloric acid, and the inhibitor efficiency reaches 95.4% in 15% HCl at 80℃.

结果发现，大蒜汁在酸性溶液中具有良好的缓蚀效果，在80℃下的15%盐酸溶液中缓蚀效率最高可达95.4%，缓蚀率随着酸浓度的增加而逐渐降低。

Through these we find the characterization of ammonium sulfate and aniline ratio, hydrochloride and perchlorate (HCLO4) concentration, polyvinylpyrrolidone and polyvinyl alcohol of Concentration on the morphology and conductivity polyaniline films have great impact.

通过这些表征我们发现过硫酸铵与苯胺摩尔比、盐酸和高氯酸（HCLO4）的浓度、聚乙烯吡咯烷酮和聚乙烯醇的浓度对聚苯胺薄膜形貌和电导率有很大的影响。

Methods Thallium was oxidized to thallium by bromine water and the thallium was complexed to [TlCl4](superscript -) in 20mL/100mL HCl and absorbed by polyurethane foam. The adsorbed thallium was eluted by a boiling Water bath and determined by platform-GFAAS.

以溴水将水样中的Tl氧化为Tl，在20mL/100mL的盐酸中Tl转化成[TlCl4]并为聚氨酯泡沫吸附，吸附的[TlCl4]经沸水浴洗脱后以平台石墨炉原子吸收法测定。

The optimization of extract condition, the component and the pH of mobile phase and the selection of electrode potential were taken into account in the two methods.

通过对样品提取方法、流动相组成和pH、检测电势等因素的实验研究，确定了血浆及尿液中沙丁胺醇和猪肝中的盐酸克伦特罗的检测条件。

In the H〓SO〓 system, the interfacial tension decreased much lower in three diluents compared with that of HNO〓 and HCl system.

在硫酸水溶液中，BODMAC在三种稀释剂中的界面张力最低；而对于盐酸和硝酸体系，不同稀释剂中，BODMAC的界面张力降低的情况不同。

In this thesis, the solution of Chinese reference materials including lithium, potassium, calcium, sodium, magnesium, was used to evaluate analytical methods applied. Lithium was enriched in different eluents (hydrochloric acid, nitric acid and mixture with ethanol or methanol) by cation exchange resin AG 50W-X8, and the optional experimental conditions were studied.

本文以锂元素标准样品和钾、钠、钙、镁元素标准样品的混合溶液为主要研究对象，采用阳离子交换树脂AG-50W-X8来分离富集锂，探索在不同淋洗介质(包括盐酸、硝酸以及与甲醇、乙醇的混合)条件下锂分离纯化的最佳介质条件。

The systems were used for dissolution test of ethambutol hydrochloride tablets. The extraction system shows good reliability during the monitoring process.

该系统用于盐酸乙胺丁醇片的溶出度测定，结果表明，该萃取系统的可靠性完全可满足在线过程分析的要求。

Through the processes of grinding bastnaesite ore concentrate, mixing the ore powder with NaCO3 in the ratio of 1 to 0.1-0.4, roasting the mixture at 400-800 deg.c for 1-6 hr, elution of the roasted sand with hot water to obtain NaF, drying filtered drag after eluting NaF and mixing the dried drag with ammonium chloride, roasting the mixture at 300-600 deg.c for 1-3 hr, hot water soaking to obtain rare earth chloride solution, extraction with 20% kerosine solution of naphthenic acid, and hydrochloric acid counter extraction to obtain rare earth chloride product.

本发明涉及一种氯化铵法从氟碳铈精矿提取氯化稀土的方法，首先将氟碳铈原精矿磨细，并与NaCO 3 混合，其比例为原矿∶NaCO 3 ＝1∶0.1～0.4，混合均匀后在400℃～800℃焙烧1～6小时，焙砂用热水洗出NaF，洗出NaF的滤渣干燥后与氯化铵混合，于300℃～600℃焙烧1～3小时，再用热水浸取得到氯化稀土溶液，用20％的环烷酸煤油液萃取，再采用盐酸反萃得到氯化稀土产品。

Methods 56wistar rats were divided into three experiment groups and one control group to analyze rats'weight,WBC counting and kinds,blood biological chemistry,action of neurology index and the residues of CL in mus-cle and liver.Results The residues of CL had no obviously changed in WBC counting,kinds and action of neurology index,but had effect on rats'weight which could change coefficient of hepato,kindy.

56只Wistar大鼠随机分为空白对照组和低、中、高剂量组，分别灌胃蒸馏水和不同浓度的盐酸克伦特罗连续30d，测定各组大鼠体重变化、白细胞计数及分类、血液生化和神经行为学指标改变，观察主要脏器的病理改变，以及肌肉和肝脏中&瘦肉精&的残留量。

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。