نتایج جستجو برای: na2so4

تعداد نتایج: 835  

Journal: :Revista Argentina de microbiologia 2010
D Salariato L A Diorio N Mouso F Forchiassin

Polygalacturonase (PG) production by Fomes sclerodermeus using solid-state fermentation (SSF) was carried out. Maximal PG activity (26 U/gdw) was obtained between days 11 and 13 at the end of exponential growth. PG activity in the crude extract was more stable at pH 5-6 and 30 degrees C and had optimum activity at pH 5 and 50 degrees C. Optimal conditions for PG extraction were: one time extrac...

Journal: :Metals 2023

This study aimed to examine the corrosion behavior of Inconel 625 in a molten salt system sodium sulfate and vanadium pentoxide at varying temperatures durations. The products, microstructure, element distribution hot extruded Na2SO4 V2O5 systems were analyzed using X-ray diffraction (XRD), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS) analyses. demonstrates that allo...

Journal: :Journal of Membrane Science 2023

So-called specific ion effects strongly impact physicochemical phenomena in among others, morphologies of polymeric membranes. This can be correlated to the identity ions, rather than just their charge or concentration. We use this effect tune properties layer-by-layer membranes prepared with polyelectrolytes polydiallyldimethylammonium chloride and polystyrene sodium sulfonate. To systematical...

Journal: :Agronomy 2022

In this study, the ability of Nepeta cataria L. to grow and synthesize bioactive compounds on soil treated with different salt concentrations was tested evaluate opportunity cultivating it in soils affected by salinization. N. grown containing specific amounts NaCl, Na2SO4, their mixture. After harvesting, plants were analyzed from morphological physiological point view. Salinity stress inhibit...

اصغر مصلح آرانی, غلامرضا بخشی خانیکی, مهدی سلطانی نجمه نعمتی

در این تحقیق اثر تنش شوری بر جوانه­زنی و بنیه بذر در سه گونه شورپسند سالسولا به نام­های S. abarghuensis, Salsola arbusculaو  S. yazdianaمطالعه شد.این آزمایش به صورت فاکتوریل در قالب طرح کاملاً تصادفی در 5 تکرار و با سطوح شوری0، 200، 300، 500 و 800 میلی‌‌مولار بر لیتر نمک  NaClو مخلوط دو نمک شامل NaCl و Na2SO4 (به نسبت 70 و 30 درصد) انجام شد. نتایج نشان داد که افزایش غلظت هر دو نمک  (NaCl, NaCl+N...

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