The preparation and several reactions of tricarbonyl(phenylacetylene)chromium and tricarbonyl(styrene)chromium are described.

It is illustrated that the electrochemical redox potentials of chromium(0) Fischer carbene complexes containing a heteroaromatic substituent can be determined to a high degree of accuracy from the gas phase density functional theory (DFT) optimized frontier orbital energies, with a mean average ...

Water soluble polycationic arene host systems have been prepared, using DABCO as the source of the cationic charge, in which the arene group is complexed to chromium tricarbonyl. Association constants for two salts were determined by NMR methods and the role of IR carbonyl band of the Cr(CO)3 mo...

The crystal structure of tricarbonyl-6,6′-dimethylfulvene chromium(0) was determined using X-ray diffraction at room temperature and at 120 K. The title compound crystallizes in the centrosymmetric, monoclinic space group P21/n (no. 14) with one complete molecule in the asymmetric unit. The dev...

Electrodeposition of manganese in the presence of selenium compounds results in high current yield. However, selenium compounds are environmentally toxic and hence their use in manganese electrodeposition should be controlled. The main objective of the present study was to avoid the use of selen...

In this contribution the experimental solubility of boric acid in sodium sulfate aqueous solution was measured at different temperatures from (293.15 to 313.15) K, and Na2SO4 concentrations ranging from (0 to 3.3795) mol kg−1 H2O.The results were represented using an equation based on Pitzer mod...

This paper examines the performance of self-consolidating concrete incorporating volcanic materials in a sodium sulfate environment. The volcanic materials used as a cement replacement of binary and ternary concrete mixtures in this research were Tolima, Puracé and Boyacá. The results were com...

Sulfated polysaccharides (SPSs) are polysaccharides (PSs) with high sulfate functionalization and possess bioactivities. This study aimed to increase the sulfate content of SPSs in Antrodia cinnamomea through sulfate feeding. Feeding A. cinnamomea with sodium thiosulfate was found to increase yi...

Conventional water flooding has been applied successfully worldwide using sea water and/or formation brine. Two processes are proposed to improve oil recovery by water flooding such as; lowering water salinity as LoSal (300 to 5,000 ppm) and changing concentration of cations and/or anions as des...

In this work, the solubility data of 20 different inorganic compounds were correlated by 7 available empirical and semi-empirical models in literature. The division criteria of four influential factors (temperature, pressure, the range of solubility data and the number of data points) were estab...

In the present study, a novel microwave assisted method has been developed for sodium metaborate dihydrate (NaBO2·2H2O) synthesis. Anhydrous NaBO2, a derivative of borax, is an industrially and technologically important boron compound used as a raw material for the thermochemical production of ...

The application of NaBH4 hydrolysis to hydrogen generation is currently obstructed by its regeneration. Finding a simple and low cost method to regenerate its hydrolysis byproduct is therefore important. Herein, the regeneration of NaBH4 is obtained by reacting its direct hydrolysis byproduct, N...

In this study, it was investigated the optimum conditions (extraction temperature and extraction period) for the production of sodium metaborate dihydrate (NaBO2.2H2O) by the reaction of ulexite (NaCaB5O9·8H2O) with trona (NaHCO3-Na2CO3·2H2O) and lime (CaO). The optimum extraction conditions w...

Szaibelyite ore is an important boron mineral used for producing boron compounds. Sodium metaborate dihydrate can be prepared through leaching of the szaibelyite ore in NaOH solution and the leaching liquor mainly consists of NaBO2 and NaOH. In this work, the induction time for sodium metaborate...

We report a facile synthesis of octahydroxytetraazapentacene (OHTAP) and the application of this redox-active material as a cathode for lithium- and potassium-ion batteries. While testing in lithium half-cells, OHTAP was used in the form of lithium salt and delivered the specific discharge capac...

Stable suspensions of chitosan nanoparticles were produced by the inverse miniemulsion technique and used as substrates for the crystallization of various polymorphs of calcium carbonate (CaCO3). These bioinspired chitosan nanoparticles were cross-linked with 1,4-butanediol diglycidyl ether, had...

Zinc carbonate hydroxide Zn5(CO3)2(OH)6 nanoparticles have been successfully synthesised by the hydrothermal treatment of an aqueous solution of zinc acetate dihydrate (Zn(CH3COO)2·2H2O) and urea (NH2CONH2) at 120 °C. The as-synthesized nanoparticles were characterized by X-ray Diffraction (XR...

Chitosan/calcium carbonate core-shell type composite microparticles were fabricated via a biomineralization-inspired process with chitosan particles as starting materials. The obtained composite particles were spherical, and the diameter of the composite particles was larger than that of the chi...

A new method of synthesis of advanced hydrated metatitanate pseudomorphs obtained via extraction of sulfate ions from the crystals of titanyl sulfate dihydrate and their replacement with hydroxyl groups of NaOH, LiOH and KOH solutions leaving the Ti-O framework untouched has been proposed. The r...

Several physical and chemical detection methods were used to study the basic properties of sintering dust (ESP dust) collected from Baogang Steel Corporation. The result shows that the major constituents of the ESP dust are KCl, NaCl, Fe2O3 and Fe3O4. Water leaching experiment on the sintering d...