China
Africa
Explore chapters and articles related to this topic
Thermochemistry, Electrochemistry, and Solution Chemistry
Published in W. M. Haynes, David R. Lide, Thomas J. Bruno, CRC Handbook of Chemistry and Physics, 2016
W. M. Haynes, David R. Lide, Thomas J. Bruno
Acetic acid Ammonia Ammonium chloride Ammonium sulfate Barium chloride Calcium chloride Cesium chloride Citric acid Copper(II) sulfate Formic acid Hydrogen chloride Lithium chloride Magnesium chloride Magnesium sulfate Manganese(II) sulfate Nitric acid Oxalic acid Phosphoric acid Potassium bromide Potassium carbonate Potassium chloride Potassium dihydrogen phosphate Potassium hydrogen carbonate Potassium hydrogen phosphate Potassium hydroxide Potassium iodide Potassium nitrate Potassium permanganate Potassium sulfate Silver(I) nitrate Sodium acetate Sodium bromide Sodium carbonate Sodium chloride Sodium dihydrogen phosphate Sodium hydrogen carbonate Sodium hydrogen phosphate Sodium hydroxide Sodium nitrate Sodium phosphate Sodium sulfate Sodium thiosulfate Strontium chloride Sulfuric acid Trichloroacetic acid Trisodium citrate Zinc sulfate
Influence of a novel nano-thermite colloid based on CuO coated CNTs on the thermo-analytical characteristics of 1,3,5-trinitro-1,3,5-triazinane
Published in Combustion Science and Technology, 2023
Ahmed K. Hussein, Mohamed G. Zaki, Ahmed Elbeih
MWCNTs were obtained from US research nanomaterials, Inc. (purity of 95%, 5–10 nm inside diameter, 20–30 nm outside diameter, and 0.5–2 μm length). Also copper(II) sulfate penta-hydrate (CuSO4 · 5H2O, Sigma-Aldrich), Sodium Citrate (C6H5Na3O7 · 2H2O, Bio shop), sodium hydroxide (NaOH, CALEDON Laboratory Chemicals), Hydrochloric acid (HCl, CALEDON), Acetone (99.9% Penta chemicals), Stannous chloride (SnCl2, CALEDON Laboratory Chemicals), stannous chloride dehydrate (SnCl2 · 2H2O, 98%, Caledon), palladium(II) chloride (PdCl2, Art-craft chemicals Inc.) were used. Nano-aluminum (Alex) was obtained from Argonide Corporation, Florida, USA and the particle size was between 100 and 200 nm. In addition, RDX (Dyno Nobel, mixture of Class 2 and 5) was used.
Hexavalent chromium removal by polyacrylic acid-grafted Macadamia nutshell powder through adsorption–reduction mechanism: Adsorption isotherms, kinetics and thermodynamics
Published in Chemical Engineering Communications, 2020
Themba Dominic Ntuli, Vusumzi Emmanuel Pakade
The Macadamia nutshells were donated by two farms, Eastern Produce Estates—SA (Pty) Ltd) in Tzaneen and Danroc (Pty) Ltd) in Barberton, South Africa. The chemicals used were obtained from Labchem, Sigma-Aldrich and Merck (Johannesburg, South Africa). To prepare the chromium(VI) stock solution, an appropriate amount of pre-dried potassium dichromate (K2Cr2O7) was dissolved in 1000 mL of ultrapure water. For competing ion studies, a stock solution containing K2Cr2O7, cadmium chloride hemi(pentahydrate) (CdCl2.2.5H2O), copper(II) sulfate anhydrous (CuSO4) and cobalt(II) nitrate hexahydrate (Co(NO3)2.6H2O) was prepared by dissolving suitable amounts of each metal ion salt in a 1000 mL of ultrapure water. Serial dilutions of the stock solution were undertaken to prepare the standard and working solutions. The ultrapure water that was used throughout the study was obtained from a Siemens LaboStar equipment (Warrendale, PA). pH adjustments were made using NaOH and HCl. Quantification of chromium(VI) and other metal ions was carried out as described in our previous work (Pakade et al., 2017; Maremeni et al., 2018).
Effectiveness of Bio-Activated Carbon Filtration and Ozonation on Control of Halo Acetic Acids Formation during Chlorination of Ganga River Water at Kanpur, India
Published in Ozone: Science & Engineering, 2020
Nagasrinivasa Rao Naladala, Rambabu Singh, A.S. Venkatesh, P. Bose, Prasad Babu K, I. D. Narayan
Analytical reagent grade chemicals, high-purity gasses, deionized water from a Milli-Q system (Millipore, USA), 1 −2 dibromopropane and haloaceticacid mix (200 ppm), Methyl-tertiary-butyl-ether (MTBE) (HPLC grade, >99% purity), Methanol (HPLC grade, >99% purity), Copper-II-sulfate-V hydrate (>99% purity), Sodium sulfite (>98% purity), Anhydrous sodium sulfate (99.5% purity), Sodium bicarbonate (99.5% purity), Aluminum sulfate, Al₂ (SO4)3.18H2O (purity 99%), and neat compounds (>99% purity) of nine HAAs named monochloroacetic acid (MCAA), dichloroacetic acid (DCAA), trichloroacetic acid (TCAA), monobromoaceticacid (MBAA), dibromoacetic acid (DBAA), tribromoacetic acid (TBAA), chlorobromo acetic acid (CBAA), dichlorobromoacetic acid (DCBAA), and dibromochloroacetic acid (DBCAA) were used in this experiment.