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Using a dynamic method, the solubilities of naphthalene in acetone, toluene, xylene, ethanol, heptane, and 1-butanol have been determined experimentally from (297.17 to 322.70, 291.35 to 334.65, 299.42 to 337.97, 304.26 to 339.76, 290.25 to 333.75, and 313.77 to 342.8) K, respectively. The experimental data were correlated with the Wilson model, Apelblat equation, and λ-h model. The
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A method for naphthalene removal from a gas using a solid adsorbent material including benzene for the removal. The removal can be applied to, for example, a crude syngas main stream and/or a
Dec 14, 2019 · The naphthalene sublimation technique is an experimental method for indirectly determining convective heat transfer. The technique is here assessed for two different configurations: the local heat transfer distribution for a circular air jet impinging normal to a flat surface, and the heat transfer occurring in the stator core of an electric generator model
Feb 03, 2020 · a method of purification of naphthalene containing impurities such as thionaphthenes and oily contaminants which comprises dissolving the impure naphthalene in an excess by weight of a mixture consisting of methanol, thiophene and water, cooling the solution to a temperature of 50* to …
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At room temperature, benzene is a liquid and naphthalene is a solid. Give an explanation for this that includes the terms intermolecular forces and thermal energy. Why is it important to crush the crystals before performing a melting point experiment?
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Weigh ~1 mg of naphthalene using the analytical balance, and carefully, bring it back to your bench. Transfer the naphthalene onto a watch glass, and then crush it using the metal spatula until it becomes a fine powder. Carefully pick up one capillary tube and tap the open end on the powder to force some of the solid into the tube
You will be given 2.00 g of impure naphthalene (mothballs!); your job is to purify the naphthalene by recrystallization without losing a significant amount of your sample! 1. Experiment Outline Part I: Solubility Tests. Determine an appropriate solvent system for the recrystallization of naphthalene
Naphthalene is a white, crystalline solid that is flammable and smells strongly of mothballs. Uses of naphthalene. Naphthalene is the most abundant component of coal tar, which is the liquid
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Feb 09, 2021 · Advantages of naphthalene as a building block for organic solid state laser dyes: ... In particular, the suppression of concentration quenching by naphthalene moieties resulted in high radiative decay rate constants and low ASE thresholds in the neat films. In addition, the photo- and thermal-stabilities of the naphthalene derivatives were
May 01, 1995 · The density of solid naphthalene and thermal properties of naphthalene have been measured by several investigators. The results from Kudchadker et al. [1] and Dean [2] are listed in Table 1. Properties of Naphthalene Chemical formula C 10 H 8 Molecular weight 128.17 Melting point 80.2 Freezing point (in air at 1.01325 bar) 80.285 Triple point
Mar 13, 2021 · We're running Naphthalene on our instruments, and for some reason, once we start running our QC samples, we are suddenly getting a 5-fold increase in peak area for Naphthalene
2-Naphthol is produced by caustic fusion of naphthalene-2-sulfonic acid. Typically, the sodium salt of the sulfonic acid is added gradually to 50% sodium hydroxide liquor at 300 °C; the melt is then heated further at 320 °C in a gas-fired iron vessel with vigorous agitation
Apr 16, 2013 · Solid–liquid equilibria for binary mixtures of {methyl stearate (1) + biphenyl (2)}, {methyl stearate (1) + naphthalene (2)}, {methyl palmitate (1) + biphenyl (2)} and {methyl palmitate (1) + naphthalene (2)} were measured using differential scanning calorimeter. Simple eutectic behaviours for these systems were observed. The experimental results were correlated by means of the NRTL, Wilson
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