نتایج جستجو برای: sodium adsorption ratio

تعداد نتایج: 726538  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

یک سری پنج تایی لیگاند چهار دندانه سولفور دهنده: en-bis-dtcna = ethylenebisdithiocarbamate sodium salt pn-bis-dtcna = propylenebisdithiocarbamate sodium salt bu-bis-dtcna = butylenebisdithiocarbamate sodium salt he-bis-dtcna = hexylenebisdithiocarbamate sodium salt oc-bis-dtcna = octylenebisdithiocarbamate sodium salt تهیه شده است. این لیگاندها به روش های ir ,1h-nmr و تجزیه عنصری شن...

Journal: :Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association 2013
Maarten Wester Frank Simonis Karin G Gerritsen Walther H Boer Will K Wodzig Jeroen P Kooman Jaap A Joles

BACKGROUND Continuous dialysis could provide benefit by constant removal of potassium and phosphate. This study investigates the suitability of specific potassium and phosphate sorbents for incorporation in an extracorporeal device by capacity and regenerability testing. METHODS Capacity testing was performed in uraemic plasma. Regenerability was tested for potassium sorbents, with adsorption...

Journal: :journal of physical & theoretical chemistry 2011
h. dashti khavidaki h. aghaie m. r. shishehbore

in this study, the adsorption of thallium (iii) ion from aqueous solutions onto modified znonanopowder as a fairly low cost adsorbent has been investigated in batch mode. it was found thatmodification of the adsorbent was essential for obtaining the significant adsorption percentage. theadsorbent modified by sodium phosphate solution. the effect of experimental parameters such asinitial ph of s...

Journal: :Adsorption Science & Technology 2021

In order to reduce the iron impurities in magnesite ore and improve purity of magnesium products, difference floatability between limonite has been studied by using mixtures with a collecting agent—KD (cationic amine collectors, containing soluble components). Sodium hexametaphosphate, pH, sodium silicate, carboxymethyl cellulose were used as regulators. Adsorption mechanisms reagents on minera...

Journal: Desert 2019
A. Afzali, A. Keshtkar Z. Feizi,

     The main portion of water demands of arid regions like Kashan Plain, Iran supply by groundwater wells. This research was conducted to assess the groundwater quality as well as modelling and mapping groundwater quality in the study area using geosatistics and deterministic techniques. Five water quality parameters, including Electrical Conductivity, Sodium Adsorption Ratio, Total Hardness, ...

Journal: :International Journal of Health Sciences (IJHS) 2022

Groundwater is germane to human existence. The study assessed the physicochemical attributes of groundwater for domestic and irrigation applications. This was conducted by collecting subjecting thirty (30) samples analysis. Thirteen parameters such as pH, electrical conductivity, total dissolved solids, hardness, magnesium, calcium, sodium, iron, fluoride, chloride, sulphate, nitrate, phosphate...

Erosion is one of the most destructive and continuous phenomena that cannot be prevented and only could be controlled by studying the chemical and physical properties of soil. Marls are one of the most important sedimentary units in Iran which have high rate in sediment production and erodibility because of their Physico-chemical characteristics. These properties caused large environmental and ...

Journal: :International Research Journal of Pure and Applied Chemistry 2014

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2002
Hong-Wen Gao Qing-Song Ye Wei-Guo Liu

We studied the interaction of sodium dodecylbenzenesulfonate (SDBS) with Nile Blue (NB) and Safranine T (ST) by a spectral correction technique. The aggregations of NB and ST on an SDBS surface obeyed Langmuir isothermal adsorption. The adsorption ratios of NB and ST to SDBS were both 0.5, and the adsorption constants of the aggregates were 1.80 x 10(5) and 9.49 x 10(4). The aggregations were a...

Journal: :Physical chemistry chemical physics : PCCP 2015
Xiao Liu Yanwei Wen Zhengzheng Chen Bin Shan Rong Chen

The structural, electronic, electrochemical as well as diffusion properties of Na doped phosphorene have been investigated based on first-principles calculations. The strong binding energy between Na and phosphorene indicates that Na could be stabilized on the surface of phosphorene without clustering. By comparing the adsorption of Na atoms on one side and on both sides of phosphorene, it has ...

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