Measurement and correlation of the diffusion coefficients of chromium(III) acetylacetonate at infinite dilution in supercritical carbon dioxide and in liquid ethanol

Diffusivities of metal acetylacetonates in liquid ethanol and comparison with the transport behavior in supercritical systems

“…A good agreement was obtained between our results and data available in the literature for Cr(acac)3 in liquid ethanol [52,53], with a deviation of only 1.70 %. For the remaining Me(acac)2 compounds there are no data in the literature for comparison.…”

“…In Fig. 6, a log-log relation between 𝐷 12 𝑇 ⁄ and 𝜂 1 is observed both in supercritical carbon dioxide (SC-CO2) and in liquid ethanol (EtOH) for Pd(acac)2 and Cr(acac)3 using the data from this work and data reported by Kong et al [52,53] and Cordeiro et al [49]. Once again, it is worth noting the good agreement between literature data and current data, from which a reliable and consistent trend emerges for 𝐷 12 (see Fig.…”

Modeling Tracer Diffusion Coefficients of Any Type of Solutes in Polar and Non-Polar Dense Solvents

“…The database utilized in this work consists of a total of 8812 data points from 553 systems which were divided into four subsets: (i) 177 systems with supercritical carbon dioxide SC-CO 2 as solvent (NDP = 5028); (ii) 154 systems with nonpolar or weakly polar solvents excluding SC-CO 2 (NDP = 1113); (iii) 88 systems with polar solvents excluding water (NDP = 1405); and (iv) 133 systems with water as solvent (NDP = 1266). All the diffusion data were taken from [15][16][17][18]25,26,.…”

“…Various empirical equations are available and can be applied to polar and non-polar solvent systems, namely those proposed by Magalhães et al [13] and others sparsely tested in the literature [14][15][16][17][18]. Notwithstanding their suitability for D 12 correlation and the good results achieved (e.g., Magalhães et al [13] obtained AARD = 2.8% for 8219 data points/539 systems), their scope of application is difficult to assess and they are generally tested with few data points (with exception for the work of Magalhães et al).…”

Determination of Zn (II) on fast-scan anodic stripping voltammetric

“…Presently, many techniques are used for the detection of metal ions. The most commonly used methods are atomic absorption spectrophotometry (AAS) [14], inductively coupled plasma mass spectrometry (ICP-MS) [14,15], inductively coupled plasma atomic emission spectroscopy (ICP-AES) [16], and electrochemical analysis [17][18][19][20][21][22]. Of these, atomic absorption spectrometry (mzwAAS) techniques are most commonly used for metal determination, as they have greater sensitivity and is fairly low cost.…”