Sulfur is mined by the recovery method known as the Frasch process, which was inventedby Herman Frasch in Germany in the early 1900s. This process forces superheated water,under pressure, into deep underground sulfur deposits. Compressed air then forces the moltensulfur to the surface, where it...
It is important to prevent its release into the environment to avoid contamination of water sources. Applicable Fields Agriculture: Prosulfuron is widely used as a herbicide in agricultural practices. Its purpose in this field is to control the growth of weeds and unwanted plants. The ...
Catalytic water-gas shift reaction (WGS) The catalytic performance of the catalysts in the WGS reaction was evaluated in a fixed-bed flow reactor. The catalyst (10 mg) was pretreated by 5% H2/Ar at 200 °C for 2 h. After that, the temperature was increased to 400 °C, and ...
Therefore, it is important that the subducted-slab derived fluids carry significant S and Cl into the mantle wedge, but higher than average initial water concentrations in primitive arc magmas are not favourable for magmatic-hydrothermal ore genesis. Methods...
Water ppm ≤5 ≤8 ≤3 ≤1 Acidity ppm ≤0.2 ≤0.3 ≤0.15 ≤0.1 Hydrolyze fluoride(As HF) ppm ≤1 ≤1 ≤0.8 ≤0.2 Mineral oil ppm ≤4 ≤10 ≤3 ≤1 Toxicity Non-tox. Non-ox. Non Non Packaging & Shipping Storage and transportation Storage and Transportation: Use, store and transport...
reducing prokaryotes do not form a phylogenetically coherent group, but members are found in several phyla within the domains Archaea and Bacteria. Energy generating mechanisms as well as other physiological, biochemical, and molecular biological aspects of this ancient group of organisms are described ...
Treatment of NO gas poses several problems. Since the solubility of NO in water is very poor,bioprocessesthat involve transfer of pollutants at low concentrations to theaqueous phaseare not very efficient. One approach was to preconcentrate the gas using activated carbon and treat the desorbed, ...
Water shortage has threatened sustainable development of agriculture globally as well as in the North China Plain(NCP).Irrigation,as the most effective way to increase food production in dry land,may not be readily available in the situation of drought.One of the alternatives is to supply plants...
Temporal and spatial variability of reduced sulfur species (FeS 2 , S 2 O 3 2 ) and porewater parameters in salt marsh sediments Porewater species and solid inorganic sulfur speciation were measured before and after the spring tide (which occurs over a 6-7 day period) during a portio......
solubilitysoluble in H2O, EtOh, ethyl ether,chloroform formcolorless gas colorcolorless OdorPungent odor detectable at 0.3 to 5 ppm Odor Threshold0.87ppm Water Solubility%H2O: 17.7 (0°C), 11.9 (15°C), 8.5 (25°C), 6.4 (35°C); % other solvents: 25, alcohol; 32, methanol [MER06] ...