Introduction: Chlorides and perchlorates present on Mars can form aqueous solutions because of low temperature eutectics and related lower evaporation rates [1]. The recent discovery of chlorides and perchlorates on Mars by NASA’s Phoenix Lander [2] reinforced the potential for chlorides on Mars. Chlorides present in databases lack spectral features (absorption bands) in the near-infrared. Most...

The substitution reactions of [Cr(SALM)(OH2)2] + (SALM =N, N– ethylene–bis-salicylamide) and Cr(H2O)6 3+ with ranitidine hydrochloride, an antacid have been studied spectrophotometrically over the range 0.5 × 10 ≤ [Cr(III)complex]T ≤ 3 ×10, 3.6 ≤ pH ≤ 4.2, 25C ≤ t ≤ 45C and I = 0.5 mol dm [Cr(III)complex] = ([Cr (III)(SALM)(OH2)2] or [Cr(H2O)6] ]) . This reaction follows a mechanism which takes...

Knowledge of solvent effects on the redox properties of Murexide (Mu) is important for understanding its role as an electron acceptor in analytical and inorganic chemistry. In the present study, an investigation of the electrochemical behavior of the compound by both Cyclic Voltammetry (CV) and Electrochemical Impedance Spectroscopy (EIS) in both aqueous and non-aqueous solutions was undertaken...

This work deals with the electrochemical degradation and mineralization of perfluorooctanoic acid (PFOA). Model aqueous solutions of PFOA (100mg/L) were electro-oxidized under galvanostatic conditions in a flow-by undivided cell provided with a tungsten cathode and an anode formed by a commercial ultrananocrystalline boron doped diamond (BDD) coating on a niobium substrate. A systematic experim...

Determination of the stability constants of dissolved iron(III) glycine system in water solution (I = 0.6 mol L in NaClO4, pH = 7.3 at 25±1 oC) using differential pulse cathodic voltammetry (DPCV) and cyclic voltammetry (CV) was performed out on a static mercury drop electrode (SMDE). By choosing voltammetry as analytical tool, measurements with lower iron(III) concentrations (10 mol L), at the...

In the frame of a systematic study on sequestering ability natural antioxidants towards metal cations, complexation coumarin-3-carboxilic acid (HCCA) with neodymium(III) and dioxouranium(VI) (uranyl, UO22+), overall stability constants resulting complexes, were evaluated from pH-potentiometric titration data at 37 °C in an aqueous solution (i.e., 0.16 mol/L NaClO4). The graphic representation c...

Introduction: In 2008, NASA’s Phoenix lander arrived in the northern arctic plain of Mars. Its objective was to perform analyses on the subsurface water ice, ultimately characterizing the geology, climate, and habitability of the Martian polar regions. Two of the instruments on board were TECP (Thermal Electric Conductivity Probe), which recorded temperature and relative humidity measurements, ...

Sodium ion battery is a promising electrical energy storage system for sustainable energy storage applications due to the abundance of sodium resources and their low cost. In this communication, the electrochemical properties of sodium ion storage in reduced graphene oxide (RGO) were studied in an electrolyte consisting of 1 M NaClO4 in propylene carbonate (PC). The experimental results show th...