查询词典 hydrochloric

Li C J. Study on kinetics of low carbon steel hydrochloric acid corrosion.

李春杰。盐酸腐蚀低碳钢的动力学研究。

The chloroform solution of PMNHA extracts vanadium rapidly from 2.25―4.50mol/L hydrochloric acid solutions as a violet complex. The absorption maxmium of the violet complex is at 540nm. Many diverse ions, especially considerable quantity of Ti ions do not interfere with the determination of V.

该试剂的三氯甲烷溶液能很快从2.25―4.50mol/L HCl中萃取钒的紫色配合物，其配合物最大吸收在540nm，很多外来离子，特别是大量的钛不干扰钒的测定，钒含量在0―28μg？

We can get chitin and protein from the mycelium using the waste alkali and waste hydrochloric acid, so as to enhance its comprehensive benefits.7 The project of the comprehensive treatment of the mother liquorFor the reason of recrystallization, a large amount of mother liquor were produced with the production of IA, except for IA, it also contain residua sugar, mineral and colloid, which could prevent the recovery of IA crystal.

利用回收的树脂再生酸、碱从菌丝体中分离出甲壳素和菌体蛋白，提高的菌体的综合效益。7、衣康酸提取母液的综合治理方案由于衣康酸的提取采用的是重结晶法，因此，生产过程中会产生大量的母液，母液中除了含有衣康酸外，还含有残糖、无机离子及少量小分子胶质物质等，这些成分的浓度相对较高，抑制了母液中衣康酸的结晶和提取，导致这部分母液只能排放，不仅使衣康酸的提取率降低，也加重了污水处理的负荷。

The good results are achieved by deeply-process of by-product hydrochloric acid through these technology improvement methods of resin exchange,Barium chloride settlement and oxide reduction.

曼海姆工艺副产盐酸存在着硫酸盐和氧化物超标的问题，通过工艺技术的改进，利用树脂交换、BaCl_2沉降、氧化物还原对副产盐酸进行深加工，效果良好。

Barium sulphate is a kind of chemical substances is very stable, insoluble in water, insoluble in hydrochloric acid and sulfuric acid, melting point's 1580℃.

硫酸钡是一种化学性质非常稳定的物质，不溶于水，也不溶于盐酸和硫酸，熔点1580℃。

UHZ-806 corrosion-proof magnetic liquid level gauge is constructed with stainless steel body with PP lining, which is high rugged and corrosion-proof. So it is suitable for acidic solution such as hydrochloric acid as well as alkaline and many organic solutions especially active solution.

UHZ-806型耐腐型磁翻柱液位计采用不锈钢本体内衬聚丙烯工艺，有很高的结构强度和耐腐蚀性，可适用于盐酸等酸性、碱性液体和许多有机溶剂。

Low levels of the crust, melting point 3180 ℃, boiling point 5627 ℃, the relative density of 2053, the external F electronic structure 5d56s2, reaction time will be lost 1-7 electronic, but also can capture an electron, so oxidation number of 0,± 1, 2 , 3, 4, 5, 6 and 7, rhenium with the halogen in the fluorine, chlorine, bromine reaction halides dissolved in water, can dissolve in nitric acid and ammonia hydrogen peroxide solution, but do not dissolve in hydrochloric acid.

地壳中含量很低，熔点3180℃，沸点5627℃，相对密度2053，外围F 电子结构5d56s2，反应时会丢失1—7个电子，也可捕获一个电子，所以氧化数为0、±1、＋2、＋3、＋4、＋5、＋6和＋7，铼能与卤素中的氟、氯、溴反应生成溶于水的卤化物，能溶于硝酸和含氨过氧化氢等溶液，但不溶于盐酸。

By using catalysts based on sodium nitrite, hydrochloric acid and sodium nitrite, cerium dioxide and sodium nitrite, and cupric nitrate and sodium nitrite correspondingly.

结果表明，用亚硝酸钠作催化剂乙醛酸产率为73.9%，盐酸和亚硝酸钠作催化剂时乙醛酸产率为84.6%，二氧化铈和亚硝酸钠作催化剂时乙醛酸产率为80.2%，硝酸铜和亚硝酸钠作催化剂时乙醛酸产率为78.2%。

Medium added inhibitor, could slow down the corrosion of equipment and valves, such as chrome-nickel stainless steel in sulfuric acid containing no oxygen, the great state of cremation within the range of solubility, corrosion more serious, but a small amount of copper sulfate or nitric acid and other oxidants, can change the passive stainless steel surface generates a layer of protective film to prevent the medium of etching, in hydrochloric acid, if a small amount of oxidant, which reduces the corrosion of titanium.

介质中添加缓蚀剂，可使设备和阀门的腐蚀减缓，如铬镍不锈钢在不含氧的硫酸中，很大的溶度范围内成火化态，腐蚀较严重，但加入少量硫酸铜或硝酸等氧化剂，可使不锈钢转变钝态，表面生成一层保护膜，阻止介质的的浸蚀，在盐酸中，如果加入少量氧化剂，可降低对钛的腐蚀。

Barite from both Hartsel and Stoneham can be cleaned in hydrochloric acid, as it will loosen the clay and iron present on these specimens.

重晶石，由双方hartsel和斯通汉姆可以清理盐酸，因为这将是放松粘土和铁目前对这些标本。

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。