نتایج جستجو برای: alkaline solution concentration 0.1 – 3%
تعداد نتایج: 2544965 فیلتر نتایج به سال:
abstract in the present research solution of chalcopyrite in sulfuric acid in hydrometallurgy method using electrochemistry with cyclic voltammetry technique has been investigated. the value of maximum reduction peak current of copper ions represents the measure of solubility. in this research different parameters temperature, potential, potential exert time, chalcopyrite concentration, sulfur...
Iron (Fe) absorption control by pH of substrate or nutrient solution that during growth and nutrient absorbtion of nutrient solution its pH will change and will affect Fe absorbtion. In order to study of different pH levels and different iron concentration on vegetative and photosynthesis traits of cucumber cv. N3 this experiment was designed. Experiment was conducted as a factorial experiment ...
in this investigation, the performance of a tower for absorption of sulphur dioxide gas into calcium carbonate solution has been studied. the trays had no downcomer and the tower itself was a scaled down pilot from industrial equipment. the industrial scale tower was used for clean up of 110000 m3/hr gas using 40 m3/hr alkaline solution. the study was composed of two parts. in the first section...
In this investigation, the performance of a tower for absorption of sulphur dioxide gas into calcium carbonate solution has been studied. The trays had no downcomer and the tower itself was a scaled down pilot from industrial equipment. The industrial scale tower was used for clean up of 110000 m3/hr gas using 40 m3/hr alkaline solution. The study was composed of two parts. In the first section...
in this study, alkaline colloidal silica was prepared by titration of an alkaline solution such as sodium silicate with silicic acid in constant range of ph .this constant range of ph was achieved by using concentrated soduim silicate solutions as ph adjusting solutions during titration.the sodium silicate solutions having a variety of concentrations were passed through ion-exchange resin to...
In this study, alkaline colloidal silica was prepared by titration of an alkaline solution such as sodium silicate with silicic acid in constant range of pH .This constant range of pH was achieved by using concentrated soduim silicate solutions as pH adjusting solutions during titration.The sodium silicate solutions having a variety of...
The paper presents the effect of different synthesis parameters, such as (a) fly ash to alkaline solution ratio, (b) concentration of NaOH solution, (c) concentration of sodium silicate solution, (d) geopolymer solids to water ratio and (e) sodium silicate to sodium hydroxide solution ratio, on the compressive strength of geopolymer concrete synthesized from fly ash of Indian origin. It is obse...
The chemiluminescence (CL) accompanying the oxidation of phenyl hydrazine with t-butylhydroperoxide in alkaline medium was studied in the presence and absence of luminol. The reaction occurring between phenyl hydrazine and alkaline (KOH) solution of aqueous tbutylhydroperoxide leads to the production of nitrogen gas with simultaneous emission of light (CL), which has been detected by PMT and re...
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