A method for working up of sulfuric acid pickling solutions of ironNIEDNER DIPL-ING PETER
aRecycling of sludge obtained from blast furnace gas purification in aqueous phase includes treatment with sulfuric acid, clarification, filtering, oxidizing the liquid phase with hydrogen peroxide and precipitating ferric hydroxides 从鼓风炉气体洗净烂泥获得的回收在水相包括治疗与硫酸,阐明,过滤,氧化液体阶段...
Acid-etched glass is just one of many available choices when it comes to creating a unique environment with decorative glass. But product specification is just the first step toward creating an attractive space. Like all glass products, acid-etched glass comes with its own share of considerations...
Why is it not advisable to react an acid with sodium chloride directly? What is the major difference between hydrochloric acid and sulfuric acid? Why can't HCl and NaOH be used as primary standards? What do you do if you are in a chem lab and you spill some t-butyl-alcohol on ...
the use of sulfuric acid, they are cautious; however, other chemicals are carried just like water. Most of the workers con- sider that Kalam, Jakir and Taher are under dangerous threat because they have direct contact with the chemicals, while oth- ...
for how long have u been working with the company 相关内容 a放几天假? How many days vacations has? [translate] aUnless otherwise specified in the monograph, compare the turbidity, if any, with that produced in a solution containing the volume of 0.020 N sulfuric acid specified in the monog...
Of the 170 participants, 82 were working in departments containing acid fumes, and 88 controls had never worked under such conditions. Of the workers exposed to acid fumes 36.9% and of the controls 30.9% had periodontal pockets. The presence of periodontal pockets increased with age significantly...
(2:3 rate of 30% w/w H2O2 to sulfuric acid), rinsed with milliQ water, dried, then treated with 3-glycidyloxypropyl trimethoxysilane (Sigma: 440167) at 75 °C for 30 min. Following treatment, coverslips were washed with acetone, dried with nitrogen gas, and functionalized with a 9...
The expanded natural graphite treated with sulfuric acid (ENG-TSA) was the matrix, and composite adsorbents of CaCl2/ENG-TSA and MnCl2/ENG-TSA are developed. Experimental results showed that, at 120 min resorption time, 230 °C hot air temperature and −5 °C refrigerates temperature, the...
♦Gelled electrolyte made by mixing sulfuric acid with silica fume♦The electrolyte is gel like ,immobile and does not leak ,enabling uniform reaction of each part of the plate .♦High rate discharge performance due to tight assembly technology♦Strong...