The ion-exchange behavior of an organomineral material with imidazolium (1-methyl-3-(prop-2-yn-1-yl)-1H-imidazol-3-ium bromide)-modified silica gel was studied for the extraction Ag(I) from nitric acid media. multicomponent systems containing Fe(III), Co(II), Ni(II), Cu(II), Pb(II), and Mn(II) in 100- 1000-fold molar excesses respect to shown occur high selectivity. Based on data X-ray diffract...

The effect of solvent composition on the conductivity behaviour sodium bromide (NaBr) and chloride (NaCl) salts in binary mixed aqueous organic solvents was evaluated using measurement. specific conductivities methanol-water, ethylene glycol-water glycol-methanol mixtures were determined at different compositions (0, 0.1, 0.4, 0.7 1) concentrations (0.01, 0.02, 0.03, 0.04 0.05 M) with JENWAY 45...

Different alkali metal atoms are observed to donate electrons to CF(3)Br molecules that are oriented in space. For collision energies high enough to overcome the Coulomb attraction, a positive ion/negative ion pair is observed and mass-analyzed using coincident time-of-flight mass spectroscopy. The alkali metal cation and various negative ions are observed. The most abundant negative ion is the...

The crystal structures of the title compounds, (3-aminOpyridiniUm),cU2cl6 and ( 3-aminopyridinium),Cu2Br6.H20, have been determined. The chloride dimer is monoclinic [a = 7.623 (1) A, b = 14.700 (2) A, c = 8.121 (1) A, j3 = 93.09 (1)O] and crystallizes in the space group PZ,/a, while the bromide dimer is monoclinic [a = 19.096 (5) A, 6 = 6.729 (1) A, c = 19.499 ( 5 ) A, /3 = 126.89 (1)O] and cr...

The adsorbed film of 1-decyl-3-methylimidazolium bromide (DeMIMB) at the air/water interface was investigated employing the surface tension measurement and the x-ray absorption fine structure method under the total reflection condition (TRXAFS). From the surface tension measurement, the surface excess concentrations of ions were determined. From the XAFS measurement, two solvation states of bro...

The use of the gaseous funaigant-nematicide methyl bromide in agriculture is scheduled to be phased out in the year 2001.1,3-Dichloropropene (1,3-D) in combination with chloropicrin and an herbicide is considered to be a viable alternative to methyl bromide for some crops. 1,3-Dichloropropene consists of two isomers, cis- and trans-l,3-D. A number of soil bacteria have been shown to initially d...

Atomic bromine and chlorine liberated from seasalt aerosol is thought to play an important role in chemistry of the marine boundary layer. Despite numerous modeling studies, no prior experimental investigations of the oxidation of halide species contained in simulated, or actual, sea-salt solutions have been performed. We present laboratory data that examines chemistry in NaBr/NaC1/HNO3/O3 solu...

Metal halide perovskites have emerged as materials of high interest for solar energy-to-electricity conversion, and in particular, the use of mixed-ion structures has led to high power conversion efficiencies and improved stability. For this reason, it is important to develop means to obtain atomic level understanding of the photoinduced behavior of these materials including processes such as p...

The title copper(II) N-pyrazolylpropanamide (PPA) complex, [CuBr(PPA)(2)]Br, was obtained in 78% yield by treatment of CuBr(2) with an excess of the ligand in methanol. Crystallization from the mother liquid afforded the title compound, i.e. the methanol solvate [CuBr(C(6)H(9)N(3)O)(2)]Br·CH(3)OH or [CuBr(PPA)(2)]Br·MeOH, as bright green crystals. In the solid state, the title salt comprises is...