盐酸的

Stainless steel 35-42 °Be FeCl 3 35-55 Mild steel 35-42 °Be FeCl 3 35-55 Beryllium copper 30-42 °Be FeCl 3 or 40-55 ammoniacal copper or 33 °Be acidic CuCl 2 Copper and copper 30-42 °Be FeCl 3 or 40-55 alloys ammoniacal copper or 33 °Be acidic CuCl 2 Inconel and other 38-42 °Be FeCl 3 or 45-55 high nickel alloys conc nitric/conc hydrochloric acid/water 1:1:3 Aluminium 20% NaOH 60-90 or conc hydrochloric 20-65 acid/water 1:4 55 or alkaline potassium ferricyanide Brass 30-42 °Be FeCl 3 or 40-55 ammoniacal copper or 33 °Be acidic CuCl 2 Molybdenum Alkaline potassium 55 ferricyanide 40-55 or 40 °Be Fe(NO 3 ) 3 Titanium 10-50% HF 30-50 (optionally with HNO 3 )*The concentration of etchant (column 2) is measured in Degrees Baume where:°Be = 145 (SG - 1/SG); and SG is the specific gravity of the solution.

表美- 00002表2金属共同腐蚀剂*温度° C的不锈钢35-42 °成为氯化铁三 35-55低碳钢35-42 °成为氯化铁三 35-55铍铜30-42 °成为氯化铁3或40-55氨铜或33 °是酸性CuCl的2铜及铜30-42 °成为氯化铁三或40-55合金氨铜或33 °是酸性CuCl的2镍铬铁合金和其他38-42 °成为三氯化铁3或45-55高镍合金浓硝酸/浓盐酸/水1时01分03秒铝20％的NaOH浓盐酸60-90或20-65酸/水1：4 55或氰化钾铜30-42 °碱性钾成为三氯化铁3或40-55氨铜或33 °是酸性CuCl的二钾55钼碱性铁氰化钾40-55或40 °成为铁Fe（NO 3）3钛10-50％的HF 30-50*的浓度对侵蚀剂（栏2）测量波美度其中：°成为= 145（法兴- 1/SG）；和SG是比重。

In Chapter 2 of this thesis, the kinetic equation of substrate reaction in presence of denaturant has been derived. A re-examination of the effect of high concentrations of guanidine hydrochloride on the inactivation of papain, taking into consideration the effect of high concentrations of guanidine hydrochloride on the Michaelis constant, showed that, for papain, the substrate gives no protection on its inactivation.

我们在第二章中推导了变性剂存在下的底物反应动力学方程，并在考虑了高浓度盐酸胍对酶催化反应米氏常数的影响的前提下，根据推导的动力学方程重新分析了盐酸胍存在下木瓜蛋白酶的失活动力学，结果表明底物对木瓜蛋白酶的失活没有保护作用。

The thesis applies the principle that organism and organic reagent can visualize in some condition and produce color association polymer. We have tried several organic reagents in order to build color reaction for berberine; at last, we find that thymol blue can react with berberine with good results.

Spectrophotometric Determination of Berberine using Thymol Blue-化学工程与工艺-利用有机化合物与有机试剂在一定的条件下能显色生成有色缔合物的原理，尝试了铬兰黑R、百里香酚蓝、甲酚红等多种有机试剂与盐酸小蘖碱的显色反应，结果发现麝香草酚蓝与盐酸小蘖碱的显色反应较好。

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。

The effects of ,, and temperature on the distribution ratio have been investigated. The composition of the extracted species is determined by the methods of slope ratio, continuous variation,extraction isotherm curves and their chemical analyses. The extraction is found to proceed according to the reaction:AuCl_4 ~-+DEOTA_(0)TAuCl3 .DEOTA_...

着重研究了盐酸浓度、氯离子浓度、氢离子浓度和温度诸因素对萃取的影响；对有机相中金的反萃行为也进行了初探；通过斜率法、等摩尔系列法、萃取等温线法确定了配合物的组成；推定了DEOTA在盐酸体系中萃取金的机理为配位取代反应；计算了萃取反应的表观平衡常数和配合物的稳定常数。

Be like: Predestined relationship of ⑿ of Yong of ㄑ buzzing Yi suckles the dug of arrogant?CO2 and NaOH solution reaction, content of the O2 in air measures decided experimental dug, hydrochloric acid makes purple Shi Rui tries the dug with erubescent fluid to wait.

浓盐酸挥发性的探究，CO2和NaOH溶液反应的探究，空气中O2含量测定的实验探究，盐酸使紫色石蕊试液变红的探究等。

Therefore can pass to use the cupric sulfate sulfuric acid potassium for the catalyst take sulfuric acid as to carry the body to digest it, make the amino acids chelate match the conversion for dissolve sex easily of ammonium sulfate and white vitriol, then absorb a fixed amount to try the kind to join 40% sodium hydroside combine under the steam heat function make ammonia the spirit swims to leave out, through cool off to respond the born boric acid with boric acid, be got the total nitrogen content by the standard aqua titration of hydrochloric acid immediately after;But the white vitriol can immediately join the hydrochloric acid hydroxylate , fluoride to turn the in order to cover up, carry on the titration but get the content of its zinc with the EDTA mark liquid..

因此可以通过用硫酸铜硫酸钾为催化剂以硫酸为载体将其消化，使氨基酸螯合锌转化为易溶性的硫酸铵和硫酸锌，然后吸取一定量的试样加入40 %的氢氧化钠并在水蒸气高温作用下使氨气游离出来，经冷却与硼酸反应生成硼酸铵，接着由盐酸标准溶液滴定得到总氮含量；而硫酸锌即可加入盐酸羟铵、氟化氢铵为掩蔽剂，用EDTA标液进行滴定而得到其锌的含量。

This method was applied to simultaneously determine the active ingredients in one Chinese compound hypotensor named Zhen Ju Jiang Ya Pian, in which the contents of clonidine hydrochloride, hydrochlorothiazide and rutin is very different as 0.03mg : 5mg : 20mg per tablet, and satisfactory results were obtained by adjusting their sensitivity by selecting the suitable diluting agent.

复方降压药珍菊降压片中活性成分盐酸可乐定、氢氯噻嗪和芦丁的含量分别为每片0.03mg∶5mg∶20摘要mg，由于盐酸可乐定的含量比氢氯唾嗦和芦丁低很多，因此要实现三种待测样品的同时测定比较困难，而我们通过选择合适的稀释溶剂调节三种待测样品的电流响应，实现了这三种待测样品的同时分离，测定结果令人满意。

Ion exclusion chromatography was used for the determination of organic acids in both beer and white wine with common HCl solution as an eluent and tetrabutylammoniun hydroxide as a regenerant.

研究了离子排斥色谱法分离测定啤酒和白葡萄酒中有机酸；选用常见的盐酸溶液作淋洗液，以四丁基氢氧化铵为再生液，考察了淋洗液浓度、流量等因素对分离和测定的影响，对啤酒和白葡萄酒中常见有机酸在阴离子排斥色谱柱上的保留行为进行了系统的研究；通过试验确定最佳的色谱条件为盐酸浓度1。

Effects of roast temperature, roast time, the amounts of sodium carbonate on decomposition of bastnaesite concentrate and effects of leaching temperature, leaching time, concentration of hydrochloric acid, the amounts of hydrochloric acid on leaching ratio of trivalent rare earth and tetravalent cerium was studied systematically.

系统地研究了焙烧温度、焙烧时间和碳酸钠的加入量对氟碳铈矿精矿焙烧分解的影响及浸出时间、浸出温度、盐酸浓度和盐酸用量对三价稀土和铈的浸出率的影响。

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。