Showing papers on "Argentometry published in 2015"
TL;DR: In this article, a kinetic study of the O 2 -thiosulfate solution for extracting gold and silver from ores using alternatives that are less harmful and aggressive to the environment than cyanides was conducted.
31 citations
TL;DR: A facile one-pot method for silver phosphate-mesoporous silica composite was reported in this article, which had a structure similar to SBA-15 and had higher photocatalytic activity than pure silver phosphate in the degradation of methyl orange under ultraviolet light irradiation.
3 citations
1 Feb 2015
TL;DR: The adsorption capacity of activated charcoal cow bones to cadmium, lead, nitrate and chloride ions are 999643, 999481, 905885% and 10145% respectively.
Abstract: Cow bone can be used as raw material of craft Based on the development of science and technology cow bone can be utilized for many purposes, for example, it could be as an adsorbent Cow bone can also be used as an activated charcoal, because bone contains about 35% of organic compounds Activated charcoal was made of cow bone through carbonization and activation processes The activation process used Na 2 CO 3 as an activator which the concentration is 2,5%, 5% and 7,5% In this experiment, activated carbon of cow bone was used to adsorbed is cadmium, lead, nitrate and chloride ions in solution Cadmium and lead were analyzed using atomic absorption spectrophotometer (AAS), while chloride was analyzed using Argentometry Mohr method and nitrate was analyzed using Brusin Sulfate method The adsorption capacity of the activated charcoal cow bones to cadmium, lead, nitrate and chloride ions are 999643%, 999481%, 905885% and 10145% respectively
Patent•
26 Jan 2015
TL;DR: In this article, the problem of providing an adsorbent of iodide ion and iodate ion, excellent in adsorptivity of II and II ion, was addressed.
Abstract: PROBLEM TO BE SOLVED: To provide an adsorbent of iodide ion and iodate ion, excellent in adsorptivity of iodide ion and iodate ion.SOLUTION: An adsorbent has cerium hydroxide (IV) and a slightly-soluble silver compound. Preferably, the content of the cerium hydroxide (IV) is 50 mass% or more and 99 mass% or less, and the content of the slightly-soluble silver compound is 1 mass% or more and 50 mass% or less. Further preferably, the slightly-soluble silver compound is at least one kind selected from silver zeolite, silver phosphate, silver chloride and silver carbonate.SELECTED DRAWING: None
1 Jan 2015
TL;DR: In this paper, an application for analysis of amperometric titration techniques using both analytical reagent heteropolianions (GPA) Kehhina structure and method of direct potentiometric determination using ISE for determining the choice amounts or amounts of alkaloids qinolizidine series in extracts in extracts are very promising, relatively simple in execution, express and sufficiently sensitive.
Abstract: Currently, there are many different methods of quantitative determination of alkaloid Sparteine amounts such as gravimetry, acidimetry, argentometry (including the use of ion-selective electrode), iodometry, extraction photometry, colorimetry, amperometry, potentiometry, direct ionometry with ion-selective electrode, thin layer chromatography, high-performance liquid chromatography and high pressure gas chromatography, also infrared and Nuclear magnetic resonance spectroscopy, chromatography-mass-spectrometry. It has been analyzed that most of the well-known methods are too insensitive, indiscriminate or too expensive, time-consuming and inaccessible. An application for analysis of amperometric titration techniques using both analytical reagent heteropolianions (GPA) Kehhina structure - standard solution 12-molibdophosphoric heteropolyacid and method of direct potentiometric determination using ISE for determining the choice amounts or amounts of alkaloids qinolizidine series in extracts are very promising, relatively simple in execution, express and sufficiently sensitive.