查询词典 hydrochloric

From the sample volume and the distances to the first and second equivalence points, calculate the MOLARITIES of hydrochloric and phosphoric acids in the sample.

从样品的体积以及第一次和第二次等当点的差异，计算样品中氢氯酸和磷酸的莫耳浓度。

Points, calculate the MOLARITIES of hydrochloric and phosphoric acids in the

从样品的体积以及第一次和第二次等当点的差异，计算样品中氢氯酸和磷酸

The color fading reation on potassium bromate with Victoria green stand G by the catalysis of nitrite in hydrochloric acid medium was studied.

采用流动注射技术与催化光度法相结合，研究了亚硝酸根催化溴酸钾氧化维多利亚绿G的高灵敏度褪色反应，用自制的微机化流动注射分析仪能准确控制时间，优化了实验条件，建立了测定痕量亚硝酸根的流动注射催化光度方法。

Crack and rupture There were 13 tank cracks, 2 body ruptures one roof hole and one flange crack resulting in 13 spillages including oils, hydrochloric acid, sulfuric acid, molten sulfur, and sodium cyanide solution, 3 fires and explosions, and the falling of one operator.

裂缝和破裂那里是13 坦克镇压、2 身体破裂一个屋顶孔和一个耳轮缘裂缝造成13 spillages 包括油，盐酸、硫酸、溶解的硫磺、和钠氰化物解答、3 火和爆炸，和下落一名操作员。

The correlations of the concentrations of Al in tea leaves with sorbed inorganic Al, Al oxide dissolved by hydrochloric acid and Al chelated by humic acid were all not significant, this indicated that the three forms of Al in soil were too stable to be assimlated by tea leaves.

通过成叶和嫩叶铝含量随土壤pH值的变化关系和土壤溶液中铝的存在形态与土壤pH值的关系之比较，初步推测茶叶吸收土壤的铝以Al〓离子为主；由于土壤pH值是影响茶叶吸收铝的主要土壤化学因素，因此，提高茶园土壤pH值，降低土壤酸度是降低茶叶铝含量的有效手段。

Mechanism of Reactive Ball Milling was discussed.The resultants of ball milling, TiB2 and MgO, were purified and cleaned with hydrochloric acid.

并对酸洗、提纯时盐酸的浓度和加入量、酸洗温度和酸洗时间等因素对提纯的影响进行了研究。

Methods: After the sample being digested, because of ethylenediamine-hydrochloric acid, aluminium, chrome azurol S, the polyethylene glycol octyl phenyl ether together with hexadecylpyridine bromide form a steady blue quaternion system, whose absorbance and aluminium content is direct ratio within some consistence range.

样品经消化后，在乙二胺－盐酸缓冲介质存在下，铝与铬天青S和聚乙二醇辛基苯醚及溴代十六烷基吡啶形成稳定蓝色四元体系，在一定浓度范围内，其吸光度与铝含量成正比。

Methods: In this report, the phosphorus oxychloride in the air of workplace site was collected by absorb liquid and turn into hydrochloric acid, then separated in column and detected with conductivity detector, qualified by elution time and quantified by peak height or peak area.

本文采用吸收液采集工作场所空气中的三氯氧磷，生成盐酸，经色谱柱分离，电导检测器检测，保留时间定性，峰高或峰面积定量。

First, L- phenylalanine methylester hydrochloric acid was obtained by using classical method of ROH-HCl which has superiority with high yield and inexpensive raws.

具体制备工艺路线为：首先，采用经典的ROH-HCl法制备L-苯丙氨酸甲酯盐酸盐，该法的优点是原料经济、操作简便、产率高。

Hydrochloric acid ; Metal recovery ; Basic zinc carbonate ; Magnetic field

盐酸；金属回收；碱式碳酸锌；磁场

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。