The aim of this work was to make biodegradable plastics from renewable resources. Paper-based biodegradable plastics were produced via a sol-gel process by using zinc chloride solution. The optimum conditions were a zinc chloride concentration of 65%, reaction temperature of 70 °C, reaction time of 5 s, aging time of 3 h, and glycerol concentration of 10%. Fourier transform infrared spectroscop...

BACKGROUND Iron oxyhydroxides are commonly found in natural aqueous systems as nanoscale particles, where they can act as effective sorbents for dissolved metals due to their natural surface reactivity, small size and high surface area. These properties make nanoscale iron oxyhydroxides a relevant option for the remediation of water supplies contaminated with dissolved metals. However, natural ...

This study considered the experimental parameters (zinc chloride, impregnation ratio and activation times) for nutrients removals (nitrate phosphate) in synthetic greywater using activated carb...

The title mononuclear zinc complex, [ZnCl(2)(C(17)H(26)N(2)O(2))], was obtained by the reaction of 2-hy-droxy-4-meth-oxy-benzaldehyde, N-cyclo-hexyl-propane-1,3-diamine and zinc chloride in methanol. The Zn(II) atom is four-coordinated by the phenolate O atom and imine N atom of the bidentate zwitterionic Schiff base ligand 2-{[3-(cyclo-hexyl-amino)-prop-yl]imino-meth-yl}-5-meth-oxy-phenol, and...

Aldicarb, carbofuran, fensulfothion, and phenamiphos were tested in concentrations of 1-100 mug/ml for their effects on hatching of Heterodera schachtii. Exposure of cysts to 1 mug aldicarb or carbofuran/ml stimulated hatch whereas phenamiphos and, to a lesser degree, fensulfothion inhibited hatch. Addition of aldicarb to sugarbeet root diffusate or 4 mM zinc chloride suppressed activities of t...

A hydrometallurgical treatment under ambient conditions was proposed in order to eliminate and recover the lead zinc contained a sample of thermal coal fly ash used produce energy. By using leaching solutions with conventional inorganic acids (HCl, HNO3, H2SO4), ferric chloride, sodium citrate, more than 90% approximately 40% were obtained. The most favorable set at 0,5 M, pH value 8 for citrat...