Zinc electroplating was used to enhance corrosion resistance of porous metal injection molded 440C stainless steel. Controlled porosity achieved by the powder space holder technique and using sodium chloride as a material. The internal pore structure deposited zinc with three different electrolytes acetate, sulfate, chloride. Our results show that all depositions on samples significantly improv...

Abstract The imbalance between raw materials of high economic importance and their supply has increased the search for new approaches to obtain valuable elements from mining tailings. In this study, extraction copper, zinc, lead sulfidic tailing in sulfate–chloride media was investigated. A 3 Box–Behnken design applied evaluate three variables over a 4-h testing period: sulfuric acid concentrat...

introduction: zinc is an essential trace element that plays an important role in synaptic plasticity and modulating the activity of cns and involve in learning and memory. synaptic vesicle zinc in the hippocampus area exerting modulatory effects on nmda glutamate receptor. method: in this experiment the effects of nmda agonist and antagonist administration intra hippocampus on passive avoidance...

Fourteen cations were tested at a 1% concentration (wt:wt), as chlorides, for their effects on the biological activity of the gypsy moth, Lymantria dispar (L.), nuclear polyhedrosis virus (LdMNPV). Cupric chloride was toxic to gypsy moth larvae. Ferrous and ferric chloride were inhibitory to larval growth and development as well as to virus activity. Strontium chloride was inhibitory to virus a...

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...

BACKGROUND In this study the effect of zinc chloride (ZnCl2) administration on the short-term and long-term memory of rats were assessed. METHODS We enrolled six groups of adult female and control group of eight Wistar rats in each group. One group was control group with free access to food and water, and five groups drunk zinc chloride in different doses (20, 30, 50, 70 and 100 mg/kg/day) in...

The dyeing of woolen yarn with eggplant peel, a natural colorant, has been studied. The main coloring component in this natural colorant is anthocyanin, which is an interesting class of dyes in the blue and red area. Eight mordants including alum, copper sulfate, ferrous sulfate, potash alum, nickel chloride, zinc sulfate, tin chloride, and potassium dichromate were used for mordanting the ...

This study was done to evaluate the effects of lead nitrate and mercury chloride in testis tissues of Wistar rats. Lead nitrate and mercury chloride are widely used heavy metals in industry. Oral lead and mercury administrations to adult male rats at doses 45 mg/kg bw and 0.02 mg/kg bw, respectively for 4 weeks caused a significant increasing in MDA levels and antioxidant enzyme activities (SOD...