查询词典 hydrochloric

Phytin was extracted with diluted hydrochloric acid, after precipitating the effluent and transforming the precipitate with sodium hydroxide, sodium phytate solution was produced.

采用化学沉淀法由菲汀制取植酸和植酸钠。菲汀经酸浸、沉淀、加碱使沉淀转化可制得植酸钠溶液。植酸钠溶液经减压浓缩、乙醇结晶可制得针状的植酸钠晶体，或经离子交换树脂酸化、浓缩可得浓度为70%的植酸

CORROSION BEHAVIOR OF TYPE 304 STAINLESS STEEL IN HYDROCHLORIC ACID AND ITS INHIBITION BY PIPERIDINE

天津大学材料学院；天津300072；天津大学材料学院；天津300072；天津职业大学；天津300402

Chemical Additives, Auxiliary: ketamine , phosphoric acid , sodium hydroxide , acetic acid , potassium chloride , sodium bicarbonate , bentonite , calcium chloride , sodium chloride , bromelain , hydrochloric acid , titanium dioxide , potassium nitrate , anhydrous ammonia , stearic acid

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Results The best experimental conditions for the new method were as follows: hydrochloric acid concentration 5%; sodium borohydride solution, potassium bromate and potassium bromide solution, 2ml each; flow rate 0.6L/min.

结果］本法的最佳实验条件为盐酸溶液浓度5%，硼氢化钠溶液和澳化剂的用量各为2ml，载气流量0.6L/min。

Place in a 250 ml conical flask fitted with a ground-glass stopper, 10.0 ml of the solution, 15 ml of water R, 5 ml of hydrochloric acid R and 4 g of potassium iodide R, close the flask, allow to stand in the dark for 15 min and add 100 ml of water R.

滴定 在250ml的带磨砂玻璃塞的锥形瓶中，加入10.0 ml的此溶液，15 ml的水，5 ml的盐酸和4 g的碘化钾，塞上塞，避光静置15分钟，再加入100 ml的水。

Potassium nitrate production, farm chloride, potassium sulphate hydrochloric acid and other products.

生产硝酸钾，农用氯化铵，硫酸钾，盐酸等产品。

That is less copper anion in the environment. PASP has the effect of corrosion inhibition in hydrochloric acid solution. In addition the potation of cathode summit current turned negative as increasing PASP concentration, and the potential of anode summit current turned positive, it can constrain the corrosion of copper. That is to say PASP is a mixed corrosion inhibitor and can constrain the corrosion of copper surface.

循环伏安测试结果表明： PASP的加入同时抑制了铜表面的阴阳极反应，使阴极峰和阳极峰电流都减弱，说明此环境中的铜离子的含量较少，PASP对铜在盐酸中有缓蚀作用；另外阴极峰电位随着PASP添加浓度的增大而依次变负，而阳极峰电位依次变正，抑制了铜的腐蚀，说明PASP是混合型缓蚀剂，有效地阻止了铜表面的腐蚀。

Technology and security from the comparison, the use of CAD software graphics rendering process flow chart of the hydrochloric acid.

通过从工艺和安全上的比较，绘制了盐酸的工艺流程图。

Gingko leaf and its extractive is microwave-aided fast hydrolyzed in ethanol, propyl alcohol, butyl alcohol, acetone and other organic solvent as digest with certain amount of phosphoric acid, sulfuric acid or hydrochloric acid aqua added.

本方法以银杏叶及其提取物为原料，以乙醇、正丙醇、正丁醇及其丙酮等有机溶剂加入一定量的磷酸、硫酸、盐酸水溶液作为水解液，经微波辅助快速水解。

The samples for drift calibration and test are prepared by pressed disc method and then the smirch on surface of sample is removed with dilute hydrochloric acid. The prue gold calibration cruve setting in the instrument is served as working curve and is monitored through controlling samples and certified samples.

采用压片方法制备漂移校正样品和纯金试样，用稀盐酸去除试样表面的沾污，工作曲线采用仪器内置的纯金标准曲线，并通过内部质量控制样品和校正样品监控。

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。