Pretreatment of arsenical refractory gold concentrate -(I) Leaching by sodium dichromate;
含砷难处理金矿预处理研究——(Ⅰ)重铬酸钠浸出法
The solution of sulfuric acid was added dropwise to the reaction vessel contained 1,3-dichloro-2-propanol,sodium dichromate and water.
将硫酸水溶液滴加到1,3-二氯-2-丙醇与重铬酸钠水溶液的混合物中,在温度23~27℃的条件下搅拌反应5 h,重铬酸钠∶1,3-二氯-2-丙醇=1∶2(摩尔比),此条件下收率为79。
It is shown that calcium carbonate can be decomposed in aqueous sodium dichromate solution and transformed to calcium chromate at ambient pressure and boiling temperature.
介绍了一种制取铬酸钙的新方法,利用重铬酸钠溶液分解碳酸钙,可以得到高纯度的铬酸钙。
Synthesis of 2-pyridinecarboxylic acid by oxidation of potassium dichromate;
重铬酸钾氧化法合成2-吡啶甲酸的研究
Determination of purity of potassium dichromate by Coulometric Titrimetry;
库仑滴定法测定重铬酸钾试剂的纯度
Study of DNA damage induced by potassium dichromate and glutathione with atomic force microscope;
重铬酸钾和谷胱甘肽作用致小牛胸腺DNA损伤的原子力显微镜研究
Study on the Opening and Surface Treatment of CNTs with K_2Cr_2O_7;
重铬酸钾用于碳纳米管开口及表面处理的研究
TOSICITY OF K_2Cr_2O_7 TO GERIODAPHNIA QUADRANGULA(O.F.MULLER);
重铬酸钾对方形网纹瑵的毒性研究
It is an oxidationreduction reaction between sodium bichromate solution and sulphur dioxide gas in the reduction tower.
详细描述了一种碱式硫酸铬制备方法,重铬酸钠溶液与二氧化硫气体在还原塔内进行氧化还原反应,经调整碱度后用离心雾化式喷雾干燥机干燥,得到优质碱式硫酸铬。
Objective To observe the germicidal efficacy of compound potassium bichromate acid solution and its influencing factors.
目的观察重铬酸钾复合酸液杀菌作用及其影响因素。
Mechanism for the Reduction of Dichromate in the Polymerization of Aniline;
苯胺聚合反应中重铬酸盐的还原机理
Study on the Surface Microstructure and Anticorrosion of the Brass Inactivated by Dichromates;
重铬酸盐钝化处理黄铜的表面显微结构及防腐性能研究
CaCr 2O 7 can be prepared by carbonation of CaCrO 4.
研究了铬酸钙碳化制备重铬酸钙过程中二氧化碳的吸收和铬酸钙溶解对反应过程速率的影响及在不同温度和不同二氧化碳压力下的反应平衡，结果表明：反应速率受二氧化碳的吸收和铬酸钙溶解过程的控制，在铬酸钙固体过量、５０ ℃、二氧化碳压力１。