k2so4

The performance of modified electrode would be improved when acid and K2SO4 concentrations increased in the electrolyte .

电解液中酸浓度和电解质浓度的提高有利于修饰电极的电化学活性。

In the second step K2SO4 can be obtained from potassium bisulfate by means of desalting with methanol .

第二步就可以使用甲醇对硫酸氢钾脱盐，然后从中获取硫酸钾。

The effects of 10 different ions on the metastable zone width and the nucleation characteristic parameters of aqueous K2SO4 solution are investigated .

研究了10种不同杂质对硫酸钾水溶液亚稳区宽度的影响，计算了在杂质存在条件下体系成核特征值的变化。

A Study of the Characteristic of Metastable Zone of the Aqueous K2SO4 Solution (ⅱ) & The Effect of Impurities on the Crystallization Process of K_2SO_4 Solution

硫酸钾水溶液亚稳区性质的研究（Ⅱ）&杂质对结晶过程的影响

K2SO4 is deposited from reaction solution by taking advantage of the difference in solubility between two salts at controlled concentration and temperature and then dryed .

控制好浓度和温度，利用两种反应产物的溶解度之差，使硫酸钾结晶析出，甩干后即为成品。

The temperature range of the eutectic mixture formation for KCl – K2SO4 – Na2SO4 system was tested and illustrated by chemical agents and an experimental electrical stove .

用化学试剂和实验电炉进行实验，绘制了KCl–K2SO4–Na2SO4低温融体形成的温度范围图。

Pot experiments were conducted to study the effects of three potash fertilizers , namely , KCl , K2SO4 and KNO3 , on Cd uptake by rice .

研究了镉污染的水稻土上三种钾肥，即KCl，K2SO4和KNO3对水稻在不同生育期吸收累积Cd的影响。

The action of K2SO4 in the electrolyte of sealed lead acid battery was studied with charge-discharge cycle , constant potential polarization followed by potential linear sweep and cyclic voltammetry methods .

采用充放电循环，恒电位极化后续线性电位扫描和循环伏安方法研究了密封铅酸电池中K2SO4的作用。

The principal , process flowsheet , process condition of two methods ( one step and two step conversion ) to produce K2SO4 with phosphogypsum conversion method are introduced . The advantage and character of the process are listed .

介绍磷石膏转化法生产磷酸钾的两种方法（一步转化法和二步转化法）的基本原理、工艺流程、工艺条件和各自的特点，总结该工艺的优点。

Before sowing seeds , calcium superphosphate ( 100kg / 667m2 ) and K2SO4 ( 80 kg / 667m2 ) were used for base fertilizer in each treatment .

各处理在播种前，统一施用过磷酸钙100kg/667m2、硫酸钾80kg/667m2作基肥。

Significant differences of the CH4 release rates between the unfertilized field plots and the plots with chemical ( K2SO4 ) fertilizer and with organic ( rapeseed cakes ) fertilizers were not observed .

实验没有观测到不同施肥（K2SO4和菜饼）对甲烷释放率的明显影响。

The paper describes the importance of K2SO4 development in Hubei province , summarizes current production technology of K2SO4 , and emphasizes that high economical and environmental benefit can be achieved producing K2SO4 from phosphogypsum and potassium chloride .

本文论述了我省发展K2SO4生产的重要性，介绍了目前K2SO4的主要生产方法，着重指出用磷石膏和氯化钾制造K2SO4的经济意义和环境效益。

The content of total N ( TN ), microbial biomass N ( MBN ), K2SO4 extractable N ( K2SO4-N ) of the soil and aggregates were all highest in irrigated arable and were lowest in grassland .

土壤全氮、微生物量氮和K2SO4浸提氮的含量，皆是灌溉耕地土壤最高，草地最低；

Because the viscosity of K2SO4 is less than KCl and potassium aluminosilicate has a relatively higher melting point , the formation of potassium aluminosilicate and K2SO4 both can improve the fouling and slagging in the surface of superheater tube .

由于K2S04的粘性小于KCl的粘性，硅铝酸钾具有相对较高的熔融温度，因此硅铝酸钾和K2S04的生成均可以改善过热器管道表面的积灰和结渣。

Potassium chloride ( KCl ) is an important kind of potassium fertilizers and is the raw materials to product potassium sulfate ( K2SO4 ) and potassium nitrate ( KNO3 ) . KCl is mainly produced by normal flotation and reverse flotation methods .

氯化钾是一种重要的钾肥，同时也是硫酸钾和硝酸钾的生产原料，主要采用正浮选法和反浮选法进行生产。

The hot corrosion behaviors of the cast alloy and the aluminide coatings were examined in molten salt film ( 75wt % Na2SO4 + K2SO4 ) at 900 ℃ by TG , SEM / EDS , XRD and EPMA .

采用热重法及SEM/EDS、XRD和EPMA研究了铸态合金和涂层在900℃熔盐（75wt%Na2SO4+K2SO4）中的热腐蚀行为。