قائمة الطعام
In the present work, the liquidus curves of the $$hbox {LiNO}_{3}$$ – $$hbox {NaNO}_{3}$$ – $$hbox {KNO}_{3}$$ – $$hbox {Ca}(hbox {NO}_{3})_{2}$$ system is determined by conformal ionic solution theory according to the solid–liquid equilibrium state of the binary mixture. The calculated eutectic temperature of the mixture is $$93 ...
In the present work, the liquidus curves of the LiNO 3 -NaNO 3 -KNO 3 -Ca(NO 3 ) 2 system is determined by conformal ionic solution theory according to the solid-liquid equilibrium state of the binary mixture. The calculated eutectic temperature of the mixture is 93.17 {°}C, which is close to the experimental value of 93.22 {°}C obtained from ...
The preparation of NaNO3-KNO3 eutectic mixture for DSC analysis was done according to Foong et al. (2010a) [7]. A differential scanning calorimeter (DSC) series Q2000 equipped with finned air cooling system from TA instruments was used for the experimental measurement. The temperature scale was calibrated using high purity reference
The nano-sized zinc oxide prepared by heating the mixture of 2.0 g ZnSO 4 .5H 2 O and 5 gm NaNO 3 -KNO 3 eutectic melt in a muffle furnace for 45 min at 500 • C [18]. Furthermore, to prepare the ...
Preparation of eutectic mixture Dried samples of NaNO 3 and KNO 3 were mixed in 45:55 weight percent ratios in a cleaned glass tube. The mixture was allowed to melt in an oil bath and mixed thoroughly. The molten mass was chilled in ice cold water. The process of melting and chilling was repeated several times in order to make a
A eutectic mixture is defined as a mixture of two or more . components which usually do not interact to form a new chemical compound but, which at certain ratios, inhibit the crystallization process of one another resulting in a system having a lower melting point than either of the components [1]. Eutectic mixtures, can be
Download scientific diagram | DSC curves of NaNO 3 and KNO 3 eutectic mixture (60/40) with and without from publication: Mechanical Dispersion of Nanoparticles and Its Effect on the Specific Heat ...
A eutectic system (/ j uː ˈ t ɛ k t ɪ k / yoo-TEK-tik) from the Greek εὐ-(eû 'well') and τῆξῐς (têxis 'melting') is a heterogeneous mixture of substances that melts or solidifies at a single temperature that is lower than the melting point of any of the constituents. This temperature is known as the eutectic temperature, and is the lowest possible melting temperature over all ...
To prepare the ternary mixtures, pure NaNO 3 (CAS ), KNO 3 (CAS ), and NaNO 2 (CAS ) (Sigma Aldrich), all analytical grade, were heated in a flask up to ~ 320 °C, i.e., above the melting temperature of each component. After adequate stirring, the salts were poured out on an alumina sheet and cooled down. Afterwards, they were powdered inside a mortar.
prepare the 200.00 mg of nanofluid sample, 59.99 mg of LiNO 3, 29.19 mg of NaNO 3, 108.81 mg of KNO 3 and 2.00 mg of SiO 2 nanoparticles were precisely measured by a microbalance (CPA 26P) and dry mixed in a 25 ml glass bottle on a hotplate at 300° C for 1 h. Secondly, four sets of pure ternary nitrate salt eutectic (LiNO 3-NaNO 3-KNO
Herein, the NaNO 3 –KNO 3 eutectic plays important roles in the formation of better-dispersed ZnO nanocrystallites. The method of adding precursor to NaNO 3 –KNO 3 eutectic with the required ratio is often close to an eutectic stoichiometry, which will afterwards accelerate the kinetics of synthesis of the desired products. In the process, the eutectic serves as a solvent with no direct ...
In this study, the eutectic nitrate of NaNO 3 and KNO 3 were selected as the heat storage material, in which the molar fractions of NaNO 3 and KNO 3 were 0.6 and 0.4, respectively. In a typical preparation, the NaNO 3-KNO 3 eutectic was prepared by mixing the NaNO 3 and KNO 3 powders at the molar as mentioned above fractions thoroughly, followed by being heated …
This study aims to apply deep eutectic solvents (DESs) as safe and efficient extraction media that could yield maximized skin-related bioactivities from a mixture of long-lived trees. Ginkgo biloba L., Cinnamomum camphora (L.) J. Presl., and Cryptomeria japonica (L.f.) D. Don, native to Asia, were examined as potential resources of cosmeceutical products.
-NaNO 3 binary mixture for latent heat thermal energy storage applications and observed that a mixture in 3:7 ratio provides a eutectic with 130kJ/kg latent heat of fusion at half of the cost as compared to commonly used solar salts [21]. The latent heat of fusion values for KNO 3-NaNO 3-LiNO 3 and KNO …
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