An investigation of nanosized potassium aluminosilicate F-type zeolite (K-F, structure code EDI) converted from rice husk ash (RHA) is reported. The crystallization process was studied in an organic template-free system under microwave radiation at 100 °C and the evolution was followed by spect...

In this paper, a remodeling of the bar adsorptive microextraction (BAμE) technique is proposed with impregnation of the derivatization reagent on the surface of the adsorptive bar containing a biosorbent material. The derivatization reagent was 2,4-dinitrophenylhydrazine (DNPH), which was adsor...

In this study, magnetic solid phase extraction coupled with in-situ derivatization (MSPE-ISD) was established for the determination of hexanal and heptanal in human urine. 2,4-Dinitrophenylhydrazine (DNPH) was used as the derivatization reagent that was adsorbed onto the surface of magnetite/sil...

Intensive research has recently been carried out to synthesize non-isocyanate polyurethanes (NIPUs) from five-membered cyclic carbonates and amines as a sustainable route to industrial relevant polyurethanes. Herein, an activated disubstituted cyclic carbonate and methyl ester containing monomer...

Among the series of heterogeneous catalysts tested in hydrogenation of heptanal, Ni–Cr–O composition possessed excellent stability and showed the best performance with the heptanol selectivity approaching 100%.

Densities (ρ), viscosities (η), and speeds of sound (u) of the ternary mixture (1-heptanol + trichloroethylene + methylcyclohexane) and the involved binary mixtures (1-heptanol + trichloroethylene), (1-heptanol + methylcyclohexane), and (trichloroethylene + methylcyclohexane) at 298.15 K were ...

The enthalpies of transfer of 1-heptanol from aqueous to aqueous α- or β-cyclodextrin (CD) solutions have been determined by microcalorimetry at various mole fractions at 298.15 K. 1-Heptanol greatly stabilized in enthalpy in an α-CD cavity, accompanying a large entropy decrease. On the other...

Densities (ρ) and dynamic viscosities (η) for three binary mixtures of n-decane with 1-pentanol, 1-hexanol and 1-heptanol are presented at temperatures from 293.15 to 363.15 K and atmospheric pressure over the entire composition range. The density and viscosity are measured using a vibrating t...

As a continuation of our studies on excess functions of binary systems, experimental data of excess molar enthalpy (HmE) of (acetonitrile + 1-heptanol or 1-octanol) mixtures have been determined as a function of composition at (298.15, 313.15, and 323.15) K at atmospheric pressure using a modifi...

This work reports new experimental density data (954 points) for binary mixtures of 1-heptanol + heptane over the composition range (seven compositions; 0 ⩽ 1-heptanol mole fraction x ⩽ 1), between 298.15 and 393.15 K, and for 23 pressures from 0.1 MPa up to 140 MPa. An Anton Paar vibrating tube...

Experimental densities were determined in liquid phase for 1-heptanol and 2-heptanol at temperatures from 313 K to 363 K and pressures up to 22 MPa using a vibrating tube densimeter. Water and nitrogen were used as reference fluids for the calibration of the vibrating tube densimeter. The uncert...

This work reports new experimental density data (816 points) for binary mixtures of dibutyl ether (DBE) + 1-heptanol over the composition range (5 compositions; 0.15 ≤ dibutyl ether mole fraction x  ≤ 0.85), between 298.15 and 393.15 K, and for 23 pressures from 0.1 MPa up to 140 MPa. An Anton...

Excess molar enthalpies for (1,4-dicyanobutane  +  benzene, or methyl benzene, or 1,2-dimethyl benzene, or 1,3-dimethyl benzene, or 1,4-dimethyl benzene, or ethyl benzene) atT =  298.15 K and p =  101325 Pa are presented. The excess enthalpy ranges from a maximum of 246 J · mol − 1for ethyl ben...

A novel hexanickel(II) complex [Ni6(NCCHCH2CH2CHCN)6] (2) with 1,4-dicyanobutane-1,4-diyl (L) which was produced by the metal-induced dimerization of acrylonitrile (AN) has been isolated and the structure has been determined crystallographically. Complex 2 is triclinic, space group P1, a = 9.998...

The activity coefficients at infinite dilution of hydrocarbon solutes in 1,4-dicyanobutane have been measured using medium pressure gas–liquid chromatography. The hydrocarbon solutes were n -pentane, n -hexane, n -heptane, n -octane, n -nonane, n -decane, cyclopentane, cyclohexane, cycloheptane...

Layered structure LiNi0.5Co0.2Mn0.3O2 (NCM) cathode has been considered as a higher energy density candidate, but the problems of high voltage cycling resistance hinders its further application. Herein, we report a Nitrile (-CN) group 1,4-Dicyanobutane (ADN) as a film forming additive. Linear sw...

The effect of water properties on solid acid catalysis using TiO2 as the catalyst in sub- and supercritical water was elucidated using the reactions of 1-octene and 2-octanol as models. Kinetic data for these reactions at 290–410 °C and 25 MPa were analyzed, and relationships between reaction ...

There is growing concern regarding the risk of transfusion- transmitted (TT) hepatitis E. Since the first described case in 2006, several TT hepatitis E have been reported to the French hemovigilance network. We performed a retrospective analysis of all cases of TT hepatitis E reported between 2...

Hepatitis E virus produces an emerging health problem, knowledge about epidemiology of hepatitis E virus infections in the USA and Latin America is still limited. The wide-ranging clinical manifestations lead to an extensive underestimation of the global seroprevalence. Clinical and diagnostic a...

ObjectivesThe objective of this study was to evaluate the Neurological Disorders Depression Inventory-Epilepsy (NDDI-E) for Youth (NDDI-E-Y) for screening for major depressive disorder (MDD) in French youth with epilepsy (YWE), in order to (1) validate this tool in a separate population; (2) det...