Available literature on the thermodynamic properties of binary CoSO4 – H2O system has been reviewed and used to derive a model for calculating solution phase equilibria in thermodynamically consistent manner. The is based Pitzer ion interaction approach and, with 10 adjustable parameters, able reproduce available data good accuracy from 270 374 K. length exact form temperature dependence was op...

Abstract The kieserite-type compound cobalt(II) sulfate monohydrate, CoSO 4 ·H 2 O, has been investigated under isothermal ( T = 295 K) hydrostatic compression up to 10.1 GPa in a diamond anvil cell by means of single-crystal X-ray diffraction and Raman spectroscopy. monoclinic ?-phase (space group C 2/ c ) undergoes second-order ferroelastic phase transition at P 2.40(3) triclinic ?-phase <m:m...

Calcium ions were specifically required for a stage in the formation of phageinfected cells in the growth cycle of PL-I phage active against Lactobacillus casei ATCC 27092. Both the adsorption of phage on to the host cells and the intracellular multiplication of phage were independent of the presence or absence of calcium ions. The optimum pH for successful infection was 5"5 to 6.0 and the opti...

The aims of this research are to synthesize and determine the formula, characteristics, complex structure Cu(II) Co(II) with 4-aminophenol investigate their antibacterial activity. complexes were synthesized by refluxing a solution CuSO4·5H2O CoSO4·7H2O, respectively, in methanol for 1 h. products characterized using UV-Vis spectroscopy, atomic absorption thermal analysis, conductivity, FTIR, m...

Selective oxidation is still a challenge for targeted conversion of biomass derived substance to high-value added products. Herein we report an efficient electrochemical strategy transform phenol into p-benzoquinone, by tandem oxidations CuSO4 and CoSO4 catalysts in electrolyte. Co3+ generated at the anode from Co2+ diffuses solution reacts with form hydroquinone, which subsequently oxidized Cu...

Monomeric [Co(II)(hep-H)(H2O)4]SO4 [1]SO4 and [Co(II)(hep-H)2(H2O)2](NO3)2 [2](NO3)2 have been developed from 2-(2-hydroxyethyl)pyridine (hep-H) and CoSO4·7H2O/Co(NO3)2·6H2O, respectively, at 298 K. On exposure to heat (120 °C), the light orange single crystal of [1]SO4 transforms to a pink single crystal corresponding to the neutral sulfato bridged dimeric complex [(Co(II)(hep-H)(H2O)2(μ2-sulf...

Mn–Co alloys were electroplated on AISI 430 stainless steel using an electrodeposition technique with the aim to reduce oxidation and chromium volatilization. The electroplating parameters designed improve coating quality. increased current density decreased MnSO4 content resulted in a denser layer. A sample coated 0.10 M CoSO4 0.50 at 350 mA cm−2 showed best resistance after being oxidized 800...