Adsorbtion isotherms, from water solution onto activated carbon have been determined over a wide consantration range for phenol and some its derivetives. At the first look, it was observed that the experimental data of ...

Eight elements(Cu, Co, La, Nd, Pr, V, Y and Zn) were determined in acid digests of the phosphate rocks using inductively coupled plasma atomic emission spectrometry(ICP-AES). The abondance of these elements exhibits the ...

Copper converter slag, provided by Ergani Copper Co. of Etibank and containing 2.56% copper and 0.22% cobalt, was roasted with ammonium sulfate. The effects of such parameters as temperature (200-600-degrees-C), duration ...

[Abstract Not Available]

Palatal cusps of nonvital maxillary premolar teeth were restored with a coronal-radicular restoration of posterior composite resin (Occlusin), amalgam (Tytin), or cermet (Chelon-Silver). Mean fracture strength values were: ...

The C-13 dipole-dipole relaxation times of the mixture of anti and syn isomers of free and complexed with Na+ and K+ dicyclohexano -18-Crown-6 were measured at 15 MHz The equilibrium constants, K(e) of each C-13 segment ...

The complexation of 1,4,7,10,13,16-hexaoxacyclooctadecane (18-crown-6) with Na+ ions in dioxane-water was investigated with a sodium ion selective electrode and a glass electrode, and values of K(e) (equilibrium constant) ...

The stabilities of various stoichiometries of the 18-crown-6 ether complexes with Na+ and K+ in methanol-d and D2O were estimated by means of an NMR method using C-13 T1 relaxation time measurements. The experimental ...

[Abstract Not Available]

[Abstract Not Available]