Chloride is commonly assayed in the clinical laboratory with a mercuric thiocyanate reagent. For example, the Technicon chloride color reagent for the SMA 6/60 contains 400 mg of Hg per liter (ppm), and the waste solution contains 130 mg/L (confirmed by analysis), generated at the rate of 300 mL/h. In our laboratory we accumulate 60 L of waste per month, containing almost 10 g of Hg. It is unde...

Digenite fine particles are easily oxidized and ferric ions (Fe3+) commonly exist in the flotation pulp of digenite. This study investigated effect Fe3+ on sulfidization digenite using sodium butyl xanthate (SBX) as a collector. The results microflotation experiments show that rate recovery can be improved by adding Na2S SBX, whereas existence large amounts is not beneficial for adsorption, zet...

Hydrogen sulfide (H2S) has a variety of physiological functions. H2S reportedly increases intracellular Ca2+ concentration ([Ca2+]i) in astrocytes. However, the precise mechanism and functional role this increase are not known. Here, we examined effects on [Ca2+]i astrocytes from rat spinal cord whether affects ATP-induced signaling, which is known to be involved synaptic function. Na2S (150 ?M...

Porous Bi2O3–Bi2S3 composite sheets were constructed through a combinational methodology of chemical bath deposition and hydrothermal reaction. The Na2S precursor concentration in the solution was varied to understand correlation between vulcanization degree structure evolution porous sheets. control etching rate Bi2O3 sheet template regrowth Bi2S3 crystallites via suitable sulfide during react...

An efficient flotation process was developed to selectively recover elemental sulfur from a high-sulfur pressure acid leaching residue of zinc sulfide concentrate. The mineralogy analysis showed that the content reached 46.21%, and 81.97% existed as which major mineral in primarily pellet aggregate biconical euhedral crystal. concentrate product with 99.9% recovery 83.46% purity obtained using ...

Sodium sulfate accumulation in the water system is a common problem production of primary metals from sulfide minerals. In flash smelting-flash converting copper smelters, when molten matte quenched industrial to produce granules, Na2SO4 precipitated and entered system, which had negative influence on process. The reaction behaviors powder containing have been studied through thermodynamic calc...

We report on a room temperature (RT) sodium-sulfur (Na−S) battery based sodium anode, sulfurated poly(acrylonitrile) (SPAN) cathode and an electrolyte containing tetrakis(hexafluoroisopropyloxy) borate (Na[B(hfip)4]; hfip=hexafluoroisopropoxide) in mixture of ethylene carbonate (EC), dimethyl (DMC) fluoroethylene (FEC). The hfip anion as weakly coordinating (WCA) provides high anodic stability,...