Volatile organic amine was used as the mobile phase addictive during the separation of four bisphosphonates (alendronate, pamidronate, zoledronic acid and etidronate). An isocratic liquid chromatography method with evaporative light-scattering detection (ELSD) was developed for these bisphosphon...

The temperature and composition dependences of the excess enthalpy, hE, have been calculated using the nrtl model for mixtures of n-heptane with the hydrogen-bonded liquids of acetic acid, propionic acid, amylamine and n-octanol. Reduced and partial molar excess enthalpies were also calculated. ...

Burnett-type equipment for obtaining low pressure PVT data was constructed and tested. The raw data were reduced using the method of Hall and Canfield and one proposed in this work. Both methods give closely similar results. Good agreement was found with the literature values for the second viri...

Electric dipole moments of naphthalene tetrachloride, di-n-amylamine, tri-n-amylamine and di-allylamine have been determined in benzene solution at 1 Mc/s. The results have been discussed in the light of molecular structure of these compounds.

Novel tungsten oxide superstructures have been constructed using two non-surfactant molecules, 1,10-diaminodecane and n-amylamine, as templates. The X-ray diffraction, transmission electron microscopy, thermogravimetric analysis and results give detailed analysis on the microstructures. The expe...

Ion chromatographic (IC) methods have been developed for the assay of amylamine in BMS-181 866-02 and tert.-butylamine (TBA) in BMS-188 494-04. BMS-181 866-02 is the penultimate intermediate in the synthesis of a novel thromboxane antagonist, BMS-180 291-02, which is undergoing clinical trials. ...

Amylamine constitutes an important class of organic compounds which exists in a variety of ammonia derivatives. In present study, a comparative analysis of amylamine and its two potential isomers, iso-amylamine and tert-amylamine, has been performed using density functional theory with B3LYP met...

Isobaric vapour-liquid equilibrium data at 40.0 and 101.3 kPa for the binary systems 1,4-dichlorobutane with 1-butanol, 2-butanol, 2-methyl-1-propanol and 2-methyl-2-propanol are reported. The systems 1,4-dichlorobutane + 1-butanol or 2-methyl-1-propanol at 40.0 kPa show azeotropes. The VLE data...

The infrared and Raman spectrum of 1,4-dichlorobutane is reported in solid, liquid and gas. Ab initio calculations for the nine stable or metastable conformers of 1,4-dichlorobutane are reported for Moller–Ploessett second order electron correlation and B3LYP density functionals with a variety ...

The usefulness of 1,6-dichlorohexane (1,6-DCH) and 1,4-dichlorobutane (1,4-DCB) as organic solvent (O) for ion-transfer voltammetry at O|water (W) interface has been examined, and the results are compared with those with 1,2-dichloroethane (1,2-DCE). The width of potential window of the 0.1 M te...

Isothermal (vapor + liquid) equilibrium data are reported for the binary mixtures containing (nitromethane or nitroethane + 1,4-dichlorobutane) at three temperatures, (343.15, 353.15, 363.15) K. The measurements were performed by means of an ebulliometer which allows sampling from both phases in...

In this work, the excess molar volume, the excess isobaric thermal expansivity, the excess isentropic and isothermal compressibility, and the excess isobaric and isochoric heat capacity for the (1,2-dichloroethane or 1,4-dichlorobutane + n-dodecane) systems are reported as a function of temperat...

The production of spatial structures on the ceramic substrates based on graphene powder cross-linked with 1,4-dichlorobutane under different parameters was studied. The influence of the type of environment, the concentration of the crosslinking compound and the time of crosslinking on the functi...

A series of composite membranes (CS-PY-DLx) were synthesized by using schiff base functionalized chitosan (CS-PY) as the polymer matrix, 1,4-dichlorobutane (DL) as the crosslinker, the quaternization reagent is iodomethane. In this work, pyridine groups grafted on chitosan were converted into qu...

At present, no high temperature experiments on phase change are reported. In this study, we have measured the Raman bands νs(CH3), νs(CH2), νas(CH3), and νas(CH2) of n-hexane in a hydrothermal diamond cell up to 588 K. We determined that the liquid–solid phase transition pressure of n-hexan...

Alkanes are key components in gasoline, jet and diesel fuels and considerably influence the combustion behavior of these fuels because of their wide range of reactivity. An improved understanding of their combustion behavior and the development of chemical kinetic models that can accurately simu...

A mesoporous mordenite (MOR) zeolite was prepared from a commercially available MOR sample by a sequential acid-alkaline-acid post-treatment. The latter was used as support of Pt to prepare a bifunctional Pt/H-MOR catalyst for the hydroisomerization of n-hexane. The results showed that the avail...

Laminar flame speeds of hexene isomers (1-hexene, 2-hexene and 3-hexene) and n-hexane are investigated at equivalence ratios of 0.8–1.5, initial temperatures of 373–453 K and initial pressures of 0.1–0.5 MPa using a constant volume combustion chamber. Results show that laminar flame speeds of...

A series of bimetallic CoxMg1-x-MOF-74 (x = 0, 0.12, 0.30, 0.57, 0.78, 1) structures were synthesized by using facile solvothermal systems having different binary metal compositions. All MOF samples were characterized carefully. Both adsorption affinity to n-hexane and 1-hexene and adsorption se...

Measurements of the thermal conductivity of supercritical n-hexane performed in a coaxial cylinder cell operating in steady state conditions are reported. The present 1321 data of the thermal conductivity of n-hexane were carried out along ten quasi-isotherms above the critical temperature. Thes...