The title compound, C(13)H(7)ClN(4)O·C(2)H(6)O, was synthesized by the reaction of 4-chloro-benzaldehyde, malononitrile and 10% sodium hydroxide solution in an aqueous medium. In the crystal structure, the crystal packing is stabilized by inter-molecular N-H⋯N, O-H⋯O and N-H⋯O hydrogen bonds.

This paper describes the research carried out to develop a process to increase the NaCl percentage of crude salt which is obtained from the conventional solar evaporation process. In this study refined salt was produced from crude solar salt by a chemicophysical method which consists of coagulation, precipitation and filtration. Initially crude salt crystals were crushed and dissolved in water....

The title compound, C(22)H(22)N(2), was prepared by the reaction of 4-amino-toluene with sodium carbonate, sodium hydroxide and potassium permanganate. The mol-ecule is disposed about a crystallographic inversion centre with one half-mol-ecule comprising the asymmetric unit. The dihedral angle between the terminal and central benzene rings is 88.05 (1)°. The crystal packing is stabilized by van...

für Naturforschung in cooperation with the Max Planck Society for the Advancement of Science under a Creative Commons Attribution 4.0 International License. Dieses Werk wurde im Jahr 2013 vom Verlag Zeitschrift für Naturforschung in Zusammenarbeit mit der Max-Planck-Gesellschaft zur Förderung der Wissenschaften e.V. digitalisiert und unter folgender Lizenz veröffentlicht: Creative Commons Namen...

Ortenzio, Opalsky, and Stuart (Appl. Microbiol. 9:562, 1961) presented data showing that phenates may kill bacteria in a different manner than the parent phenols, and that excess uncombined alkali in phenolic-type formulations has a much greater inactivating effect for gram-positive cocci than for gram-negative enteric bacteria. This study is a continuation of these investigations to determine ...

In this research, marine clays has been studied its potential as a matrix composite materials that tend to be used as alternative materials to concrete. The study shows that marine clays which mixed with appropriate proportion of alkaline activator could have strength requirements for masonry cement. The alkaline activator that been used for the geopolymerisation reaction is sodium silicate and...

The importance of neurofibrillar impregnations in the study of the nervous system needs no emphasis. However, the silver methods currently used involve such a complex of variables that the results are by no means constant. The present communication is devoted to the problem of interpretation of results, together with certain fundamental relations between brain tissue and silver solution. The mo...

This article will focus on the alkaline leaching of gold-bearing tetrahedrite concentrate in a solution containing sodium sulfide and hydroxide. selective is followed by heavy waste metals into solution, which may influence physical properties quality desired product, possibly causing environmental toxicity. At same time, amount gold was observed during process to increase its content solid pha...