نتایج جستجو برای: sulphuric acid
تعداد نتایج: 747566 فیلتر نتایج به سال:
This paper shows an influence of chemical composition of used electrolyte, such as amount of sulphuric acid in electrolyte, amount of aluminium cations in electrolyte and amount of oxalic acid in electrolyte, and operating parameters of process of anodic oxidation of aluminium such as the temperature of electrolyte, anodizing time, and voltage applied during anodizing process. The paper shows t...
IT is a fact well known to histologists that certain basic dyes undergo a change of tint when taken up by particular tissue elements, especially cartilage, mucus and the granules of the so-called 'mast cells'. The chemistry of this phenomenon, named 'metachromasia' by Ehrlich, has been studied in some detail by Lison [1935], This investigator concluded that the change of colour in the dye is du...
Experimental investigation of homogeneous freezing of sulphuric acid particles in the aerosol chamber AIDA O. Möhler, O. Stetzer, S. Schaefers, C. Linke, M. Schnaiter, R. Tiede, H. Saathoff, M. Krämer, A. Mangold, P. Budz, P. Zink, J. Schreiner, K. Mauersberger, W. Haag, B. Kärcher, and U. Schurath Forschungszentrum Karlsruhe, Institute of Meteorology and Climate Research, Karlsruhe, Germany Fo...
S.-L. Sihto, M. Kulmala, V.-M. Kerminen, M. Dal Maso, T. Petäjä, I. Riipinen, H. Korhonen, F. Arnold, R. Janson, M. Boy, A. Laaksonen, and K. E. J. Lehtinen University of Helsinki, Department of Physical Sciences, P.O. Box 64, 00014 University of Helsinki, Finland Finnish Meteorological Institute, Climate and Global Change, Erik Palmenin Aukio 1, P.O. Box 503, 00101 Helsinki, Finland Atmospheri...
Results from the first chemistry-transport model study of the impact of the 1783–1784 Laki fissure eruption (Iceland: 64 N, 17 W) upon atmospheric composition are presented. The eruption released an estimated 61 Tg(S) as SO2 into the troposphere and lower stratosphere. The model has a high resolution tropopause region, and detailed sulphur chemistry. The simulated SO2 plume spreads over much of...
Oxidation of graphite is the first important step for industrial-scale preparation graphene by a top-down method using as starting material. In this study, was oxidized thermal, chemical (sulphuric acid, ozone, peracetic benzoyl peroxide), thermo-chemical (heat treatment in presence sulphuric acid) and mechano-chemical (sonication with acid ozone environment) methods efficiency different oxidat...
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