The viscosity and density of sulphuric acid and oleum
Identifieur interne : 003303 ( Istex/Checkpoint ); précédent : 003302; suivant : 003304The viscosity and density of sulphuric acid and oleum
Auteurs : Norman F. H. Bright ; H. Hutchison ; D. SmithSource :
- Journal of the Society of Chemical Industry [ 0368-4075 ] ; 1946-12.
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- KwdEn :
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Abstract
The viscosity and density of aqueous sulphuric neid solutions of 60 to 100% strength und of oleums over the whole of the available ranges of concentration have been determined at 25°, 45°, 60° and 80° with sufficient accuracy to satisfy technical requirements. The viscosity determinations were made in Ostwald viscometers contained in a thermostat, the density determinations being made immediately afterwards with the material from the same stock. When plotted against concentration of total SO2 the viscosity shows maxima corresponding to 69% and 90% total SO2, i.e. to H2SO4.H2O and H2SO4.SO3 and minima at 77% total SO3 (3H2SO4.H2O); there is also an indication of a discontinuity of gradient at 81·3% SO3, i.e. H2SO4. The density plotted against concentration shows maxima at 79·5% and 92% total SO3 and a minimum at 81·3% total SO3 (99·6% H2SO4) with a discontinuity in gradient.
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DOI: 10.1002/jctb.5000651206
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ISTEX:E5F6B566E858935F3EA6DE3DA2009FEAB64B7864Le document en format XML
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<author><name sortKey="Hutchison, H" sort="Hutchison, H" uniqKey="Hutchison H" first="H." last="Hutchison">H. Hutchison</name>
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<author><name sortKey="Bright, Norman F H" sort="Bright, Norman F H" uniqKey="Bright N" first="Norman F. H." last="Bright">Norman F. H. Bright</name>
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<idno type="eISSN">1934-9971</idno>
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<front><div type="abstract" xml:lang="de">The viscosity and density of aqueous sulphuric neid solutions of 60 to 100% strength und of oleums over the whole of the available ranges of concentration have been determined at 25°, 45°, 60° and 80° with sufficient accuracy to satisfy technical requirements. The viscosity determinations were made in Ostwald viscometers contained in a thermostat, the density determinations being made immediately afterwards with the material from the same stock. When plotted against concentration of total SO2 the viscosity shows maxima corresponding to 69% and 90% total SO2, i.e. to H2SO4.H2O and H2SO4.SO3 and minima at 77% total SO3 (3H2SO4.H2O); there is also an indication of a discontinuity of gradient at 81·3% SO3, i.e. H2SO4. The density plotted against concentration shows maxima at 79·5% and 92% total SO3 and a minimum at 81·3% total SO3 (99·6% H2SO4) with a discontinuity in gradient.</div>
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