盐酸化的

Results Under normal production conditions, concentration of sulfuric acid, hydrochloric acid, arsenic hydrogen and sodium hydroxide which could cause occupational hazardous accidents met the occupational exposure limits.

结果 在正常的生产条件下引起职业病危害事故的硫酸、盐酸、砷化氢和氢氧化钠的浓度符合职业接触限值。

A series of azobenzenes with different electron effect substituents were prepared from diazonium salts and benzoguanamine.

将含有不同取代基的芳胺在盐酸介质中进行重氮化反应，制得相应的重氮盐，再与苯代三聚氰胺发生偶合反应，最终得到一系列含有不同取代基的偶氮化合物。

The ideal activation process parameter as follow: The nickel sulfate hexahydrate concentration 15g·L~(-1);The Sodium borohydride concentration 15g·L~(-1); The Sodium hydroxide concentration 10-15 g·L~(-1);Hydrochloric acid concentration 10-15 g·L~(-1);The activation time in A solution 9min, the activation time in B solution 90s.

理想的活化工艺参数为：硫酸镍15g·L~(-1)，硼氢化钠15g·L~(-1)，氢氧化钠10-15 g·L~(-1)，盐酸10-15 g·L~(-1)，A液中活化的时间控制在9min左右为最佳，B液中活化的最佳时间为90s。

Hydrochloric acid with a surfactant additive that is used in acidizing a well.

在井的酸化作业中所用的加有表面活性剂的盐酸。

The effect of guanidine hydrochloride concentration on the oxidative refolding of denatured-reduced lysozyme of high concentration in the presence of artificial chaperone , that is, cetyl trimethyl ammonium bromide and β-cyclodextrin,was studied.

研究了表面活性剂十六烷基三甲基溴化铵加β-环糊精和盐酸胍对高浓度变性-还原溶菌酶氧化复性的影响，利用基于二态复性模型的表观动力学模型分析了溶菌酶的复性过程。

The corrosion inhibitor prevents cathode and anode process of metal corrosion,so it can be used in a wide temperature range(60～150℃)and in high chlorhydric acid concentration (15%～34%).

该缓蚀剂对金属腐蚀的阴、阳极过程起抑制作用，因此使用的温度范围宽（60～150℃），盐酸浓度高（15％～34％），该产品生产工艺简单，成本低，是油田较理想的酸化缓蚀剂。

The stability of LEM served in magnesium ion extraction under the circumstance of WPA is studied. Taking N205 as surfactant, sulfonic acid as carrier, liquid paraffine as membrane intensifier, kerosene as membrane solvent and hydrochloric acid as well as sodium chloride as aqueous internal phase.

研究了以N205为表面活性剂，磺酸基络合剂为流动载体，液体石蜡为膜增强剂，磺化煤油为膜溶剂，盐酸加氯化钠为内水相的乳状液膜在湿法磷酸体系中捕获镁离子时的稳定性。

By using the sodium silicate and waste hydrochloric acid as raw materials, polysilicic acid is prepared. The study shows that, under the conditions of the concentration of sodium silicic acid being 4%-8%, the pH, and the reaction time being about 5 hour, the stable polysilicic acid is made.

以水玻璃、废盐酸为原料，制备聚硅酸，研究表明：在硅酸钠浓度为4%~8%，pH小于4的条件下，室温熟化5h左右，可制得稳定的聚硅酸。

The residue was taken up in 1000ml water, acidified by the addition of conc HCl, and washed with 3x50ml DCM, basified with 25% NaOH, and extracted with 3x100ml DCM.

将残留液置于1000毫升水中，使用浓盐酸进行酸化，用3x50ml的DCM溶液冲洗，用25％氢氧化钠进行basified，然后用3x100ml的DCM溶液进行提取。

Its stability was investigated after calcination and after separate treatments in boiling acid, base and different ammonium salt solutions for 6h.

采用三段晶化法合成了MCM-22分子筛，研究了MCM-22分子筛的热稳定性，分别用盐酸、NaOH和铵盐溶液在沸腾条件下处理MCM-22分子筛6h，考察MCM-22分子筛对酸、碱、铵盐的稳定性。

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。