Претраживање
Приказ резултата 31-40 од 207
Modelling of volumetric properties of binary and ternary mixtures by CEOS, CEOS/Ge and empirical models / Modelovanje volumetrijskih svojstava binarnih i ternernih smeša pomoću CEOS, CEOS/Ge i empirijskih modela
(Serbian Chemical Society, Belgrade, 2007)
Although many cubic equations of state coupled with van der Waals-one fluid mixing rules including temperature dependent interaction parameters are sufficient for representing phase equilibria and excess properties (excess ...
(NH4)2SO4 corrosion of cement in concrete analyzed by an improved mathematical model / (NH4)2SO4 korozija cementa u betonu analizirana poboljšanim matematičkim modelom
(Serbian Chemical Society, Belgrade, 2009)
This paper gives a critical analysis of the equation that predicts and estimates the progress of degradation for various building materials, recently proposed by Matsufuji et al.1 After the analysis, the paper suggests an ...
Adsorption of itaconic acid from aqueous solutions onto alumina / Adsorpcija itakonske kiseline iz vodenih rastvora na aluminijum-oksidu
(Serbian Chemical Society, Belgrade, 2008)
Itaconic acid, IA (C5H6O4), was investigated as a potential flocculant for the aqueous processing of alumina powders. The adsorption of IA, as a function of its concentration and pH value of the solution, onto the alumina ...
Synthesis and investigation of solvent effects on the ultraviolet absorption spectra of 5-substituted-4-methyl-3-cyano-6-hydroxy-2-pyridones / Sinteza i ispitivanje efekta rastvarača na UV spektre 5-supstituisanih 4-metil-3-cijano-6-hidroksi-2-piridona
(Serbian Chemical Society, Belgrade, 2001)
A number of 5-substituted-4-methyl-3-cyano-6-hydroxy-2-pyridones from cyanoacetamide and the corresponding alkyl ethyl acetoacetates were synthesized according to modified literature procedures. The alkyl ethyl acetoacetates ...
ESI-MS spectra of 3-cyano-4-(substituted phenyl)-6-phenyl-2(1H)-pyridinones / ESI-MS spektri 3-cijano-4-(supstituisani fenil)-6-fenil-2(1H)-piridinona
(Serbian Chemical Society, Belgrade, 2009)
Twelve 3-cyano-4-(substituted phenyl)-6-phenyl-2(1H)-pyridinones were investigated by tandem mass spectrometry using positive as well as negative electrospray ionization. The influence of the electron affinity of the ...
Saturated-liquid heat capacity calculation of alkanes / Predskazivanje toplotnog kapaciteta zasićene tečnosti alkana
(Serbian Chemical Society, Belgrade, 2005)
An empirical model for the calculation of the heat capacity of alkanes is recommended. This model was tested and compared to known models (Luria-Benson and Růžička-Domalski) using 68 sets with 1155 literature experimental ...
The thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate) / Termička degradacija poli(iso-butil metakrilata) i poli(sec-butil metakrilata)
(Serbian Chemical Society, Belgrade, 2000)
The non-oxidative thermal degradation of poly(iso-butyl methacrylate) and poly(sec-butyl methacrylate) was investigated by studying changes in the polymer residue. Due to the different number of β-hydrogens in their ester ...
An investigation of influence of solvent on the degradation kinetics of carotenoids in oil extracts of Calendula officinalis / Ispitivanje uticaja ekstragensa na kinetiku razgradnje karotenoida u uljanim ekstraktima nevena
(Serbian Chemical Society, Belgrade, 2005)
The stability of carotenoids was studied in marigold oil extracts prepared with following solvents: Myritol 312®, paraffin oil, almond oil, olive oil, sunflower oil, grape seed oil, and soybean oil. The concentration of ...
Synthesis, structure and solvatochromism of 5-methyl-5-(3-or 4-substituted phenyl)hydantoins / Sinteza, struktura i solvatohromizam 5-metil-5-(3- ili 4-supstituisanih fenil)-hidantoina
(Serbian Chemical Society, Belgrade, 2009)
Several 5-methyl-5-(3- or 4-substituted phenyl)hydantoins were prepared and their ultraviolet absorption spectra were recorded in the region 200-400 nm in twelve solvents of different polarity. The effect of solvent ...
A study of the antibacterial efficiency and coloration of dyed polyamide and polyester fabrics modified with colloidal Ag nanoparticles / Proučavanje antibakterijske efikasnosti i promene obojenja poliamidnih i poliestarskih tkanina modifikovanih koloidnim nanočesticama srebra
(Serbian Chemical Society, Belgrade, 2009)
In this study, the influence of dyeing on the antibacterial efficiency of polyamide and polyester fabrics loaded with colloidal Ag nanoparticles and the influence of the presence of Ag nanoparticles on the color change of ...