The electrochemical polymerization of pyrrole (Py) in aqueous KNO3 solutions using Austenitic stainless steel electrodes by galvanostatic, potentiostatic and potentiodynamic methods was studied. Chronoamperometric experiments show different behavior of the current with time. Correspondingly, I-tx plots were made giving better fitting for x =3/2 suggesting a progressive nucleation with three-dim...

Nitrate reductase (NR) activity, induced by germination in KNO3 showed a strong rhythmicity during the early stages of germination of wheat embryos. Peaks of activity occurred approximateiy every 12 h. Tbere was no relationship hetween the amounts of nitrate in tbe embryos and enzyme activity. Tbe fluctuations in enzyme activity did not appear to be due to reversible inactivation of the enzyme....

The objective of the study was to determine the most suitable cyst forming media in liquid conditions. Encystation in Azospirillum brasilense Cd was observed by using routine laboratory staining and microscopy. Best encystment occurred in liquid or semisolid media containing fructose (8 mM) and KNO3(0.5 mM). The encysted forms consisted of a central body filled with poly-β -hydroxybutyric acid ...

Abstract. Steady-state approximation for interpreting NO3 and N2O5 has large uncertainty under complicated ambient conditions could even produce incorrect results unconsciously. To provide an assessment solution to the dilemma, we formulate datasets based on in situ observations reassess applicability of method. In most steady-state cases, find a prominent discrepancy between Keq (equilibrium c...

Seed priming is a method for improving seed vigor, which can improve germinability, but the disappearance of positive effects and decrease longevity during storage may limit its application. To determine effect on hot pepper seeds time be maintained, it necessary to monitor study variability primed storage. In this study, several treatments with 3% KNO3, 20% PEG, or KNO3 + PEG up 8 months were ...

the solubility of kno3 in the mixed solvent (water 85%+methanol 15%) were determined by using solvent evaporating method at different temperatures (25, 30, 40, 50, 60 ;c). in addition the equilibrium constant of ion pair formation, kip, for k+no3 – ion-pair on the basis of fuoss contact ion pair model was calculated. upon choosing the extended debye-hückel model for estimating the mean activity...

New film materials for pertechnetate: A new film material comprised of quaternized poly(4vinylpyridine) cross-linked with 1,10-diiododecane has been developed for use in the spectroelectrochemical sensor. Films were prepared in a one-pot synthesis by stirring poly(4vinylpyridine), cross-linker and methyl iodide in 1-butanol for 1 h, after which the solution was spincoating onto ITO-glass. Film ...

The composition and stability of the complexes of isatin-β-thiosemicarbazone with Co(II), Ni(II), Cu(II), Zn(II), Pd(II) and Hg(II) have been investigated using spectrophotometric method at 30 °C and constant ionic strength of 0.1 mol dm-3 (KNO3) in 70 % ethanol. Experimental results indicate the formation of MeL and MeL2 complexes for Ni(II) and Co(II), and MeL for Cu(II), Zn(II), Pd(II) and H...