CRYSTALS OF THE HYDROGEN SULFATE SALT OF CHLORDIAZEPOXIDE (SYSTEMATIC NAME: 7-chloro-N-methyl-5-phenyl-2,3-dihydro-1H-1,4-benzodiazepin-2-iminium 4-oxide hydrogen sulfate), C(16)H(15)ClN(3)O(+)·HSO(4) (-), were obtained from a solution of chlordiazepoxide and sulfuric acid in methanol. The structure features chlordiazepoxide mol-ecules that are protonated at the imine N atom. The seven-membered...

ABSTRACT Sweet potatoes are an important staple food for human consumption. This study evaluated sweet potato yield in response to potassium fertilization using different sources and splitting. It was conducted at the Universidade Federal da Paraíba, Areia-PB. A complete randomized block experimental design used a 7 × 2 factorial arrangement. The split into seven treatments (100% after planting...

An ion chromatography technique with conductivity detection was selected as an analytical tool for the simultaneous indirect determination of sodium sulfate, potassium and magnesium sulfate via their respective cations. The method developed validated quantitative assay inorganic salts under study in oral pharmaceutical dosage forms. Chromatographic separation achieved on a Dionex®IonPac® CS16 c...

The microbial consortia from produced water at two different oil fields in Alaska (Kuparuk) and the North Sea (Ninian) were investigated for sulfate-reducing and methanogenic activity over a range of temperatures and for a variety of substrates. The consortia were sampled on site, and samples were either incubated on site at 60(deg)C with various substrates or frozen for later incubation and an...

Hydrogen gas (H2) may be produced by the anoxic corrosion of steel components in underground structures, such as geological repositories for radioactive waste. In such environments, hydrogen was shown to serve as an electron donor for autotrophic bacteria. High gas overpressures are to be avoided in radioactive waste repositories and, thus, microbial consumption of H2 is generally viewed as ben...

In the title compound, C(10)H(16)N(2) (2+)·2HSO(4) (-), the S atoms adopt slightly distorted tetra-hedral geometry and the diprotonated piperazine ring adopts a chair conformation. In the crystal, the 1-phenyl-piperazine-1,4-diium cations are anchored between chains formed by the sulfate entities via inter-molecular bifurcated N-H⋯(O,O) and weak C-H⋯O hydrogen bonds. These hydrogen bonds contri...

In the cation of the title compound, C(7)H(9)BrN(+)·HSO(4) (-), the amino N atom is protonated. In the crystal, inter-molecular O-H⋯O and N-H⋯O hydrogen bonds generate an infinite two-dimensional network parallel to (001).

Acetate is a major product of fermentation processes and an important substrate for sulfate reducing bacteria and methanogenic archaea. Most studies on acetate catabolism by sulfate reducers and methanogens have used pure cultures. Less is known about acetate conversion by mixed pure cultures and the interactions between both groups. We tested interspecies hydrogen transfer and coexistence betw...

A flow ratio control system using is introduced. It is composed of Sensor, Flow meter and Mitsubishi PLC, which is the core of the control system, and some other equipment as an example that Potassium Chloride and Sulfuric acid make Potassium Sulfate to introduce this control system using in the chemical industry. This control system controls the flowing of the Sulfuric acid based on the flowin...

Colitis has been reported by rectal instillation of a variety of agents: soap enemas, water-soluble contrast media, hydrogen peroxide, vinegar, potassium dichromate, potassium permanganate, copper sulfate, brown sugar, glutaraldehyde, non-steroidal anti-inflammatory agents, and ethyl alcohol. We report a 54-year-old man, who accidentally received a 100-ml enema of 10% formalin. Within minutes t...