نتایج جستجو برای: nacl و na2so4
تعداد نتایج: 782912 فیلتر نتایج به سال:
In this study, crystallization phenomena were investigated by real-time in situ observation of seeded droplets under evaporation using a self-developed hot-stage platform. Ternary solutions at eutonic conditions 25 °C for the following systems: NaCl–KCl–H2O, NaCl–CaSO4–H2O, and NaCl–Na2SO4–H2O. Evidence epitaxial growth was found aqueous NaCl–KCl NaCl–Na2SO4. Sodium chloride nucleated grew epit...
Effect of salts (Na2SO4, Na2CO3, MgSO4, NaCl, MgCl2), soil extract and polyethylene glycol (PEG-6000) on the germination of Chenopodium glaucum L., seed was studied. Maximum germination was obtained in distilled water. Germination decreased with increase in salinity. The inhibition of germination by salt solutions was in the order of MgCl2 > Na2SO4 > Na2CO3 > NaCl > Soil extract > MgSO4. Germin...
The promotion of strengthening of vanadium oxidation by compound additive of sodium salts is described from the changes of the vanadium valence state and mineral phase. The results are as follows: during the roasting process, dehydroxy mica converts to the melt, which the composite system mainly contains Na, K, Al, Si, and O. Under the action of NaCl-Na2CO3, ion exchange between sodium and pota...
مرحله جوانهزنی گیاهان یکی از مراحل مهم در طول دوره رشد آنها است که اغلب تحت تأثیر تنشهای محیطی به ویژه شوری و خشکی قرار میگیرد. به منظور بررسی چگونگی جوانهزنی گونه آسمانیگچدوست در سطوح مختلف شوری و خشکی دو آزمایش جداگانه در3 تکرار و قالب طرح کاملاً تصادفی برنامهریزی گردید. آزمایش خشکی با 5 سطح (شاهد، 3-، 7-، 11- و 18- بار) و آزمایش شوری در 2 نوع نمک nacl و مخلوطnacl + na2so4 هر یک در 6 ...
مرحله جوانهزنی گیاهان یکی از مراحل مهم در طول دوره رشد آنها است که اغلب تحت تأثیر تنشهای محیطی به ویژه شوری و خشکی قرار میگیرد. به منظور بررسی چگونگی جوانهزنی گونه آسمانیگچدوست در سطوح مختلف شوری و خشکی دو آزمایش جداگانه در3 تکرار و قالب طرح کاملاً تصادفی برنامهریزی گردید. آزمایش خشکی با 5 سطح (شاهد، 3-، 7-، 11- و 18- بار) و آزمایش شوری در 2 نوع نمک NaCl و مخلوطNaCl + Na2SO4 هر یک در 6 ...
an extended peng-robinson equation of state (epr-eos) is used to model the vapor-liquid equilibrium (vle) in systems containing (water + nacl + co2), (water + methanol + nacl + co2), (water + na2so4 + co2) and (water + nh4cl + co2). the binary and ternary interaction parameters between salt and solvent are adjusted to experimental mean solvent activity of salts (nacl and na2so4). for the system...
Turfgrass nutrient uptake may be differentially affected by different salts. The objective of this study was to compare nutrient uptake in tall fescue (Festuca arundinacea Schreb.) as affected by carbonate, chloride, and sulfate under iso-osmotic, iso-Na+ strength conditions. 'Tar Heel II' and 'Wolfpack' cultivars were subjected to NaCl, Na2CO3, Na2SO4, CaCl2, NaCl+ CaCl2, Na2CO3+ CaCl2, and Na...
In order to study the effect of inorganic salt additives on surface tension a sodium dodecylbenzene sulfonate (SDBS) solution, mixed system six common additives, NaCl, CaCl2, AlCl3, Na2SO4, Na2CO3, and NaHCO3, SDBS was measured, effects types, surfactant concentrations solution were studied. On this basis, three salts, CaCl2 selected, their critical micelle concentration (CMC) The experimental ...
The phase-transition temperatures of an elastin-like polypeptide (ELP) with the (GVGVP)40 sequence and solvent dipolarity/polarizability, hydrogen-bond donor acidity, and hydrogen-bond acceptor basicity in its aqueous solutions were quantified in the absence and presence of different salts (Na2SO4, NaCl, NaClO4, and NaSCN) and various osmolytes (sucrose, sorbitol, trehalose, and trimethylamine ...
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