Topic
Isopropyl alcohol
About: Isopropyl alcohol is a research topic. Over the lifetime, 3064 publications have been published within this topic receiving 27354 citations. The topic is also known as: Rubbing Alcohol & Propan-2-ol.
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TL;DR: In this paper, the zeta potential of hydroxyapatite powder in isopropyl alcohol was measured by measuring zeta sizer equipment, and it was concluded that the suspension which was stabilised with 4 g L−1 polyethylenimine revealed the highest zeta-potential and stability which is suitable for cathodic electrophoretic deposition.
Abstract: Suspension stability of hydroxyapatite powder in isopropyl alcohol was investigated by measuring zeta potential. In this study, isopropyl alcohol was used as a suspension media, and nitric acid, polyvinyl butyral and polyethylenimine were the dispersing agents. Fine grain particles with mean particle size and surface area of 2·54 μm and 5·8 m2 g−1 respectively, were prepared. Stable suspensions were made by mixing 40 g L−1 milled powders in isopropyl alcohol. The zeta potential of the suspensions was measured by using zeta sizer equipment. The results showed that by adding nitric acid and polyvinyl butyral to the system, negative charge was introduced, while polyethylenimine donated positive charge to the surface of particles and induced electrostatic and steric stabilisation. It was concluded that the suspension which was stabilised with 4 g L−1 polyethylenimine revealed the highest zeta potential and stability which is suitable for cathodic electrophoretic deposition.
11 citations
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TL;DR: An equilibria-cotransport model is demonstrated for understanding the isopropyl alcohol-enhanced transport of an ionizable model compound, terbutaline in its sulfate salt form, through human skin in vitro.
11 citations
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TL;DR: In this paper, the authors injected 14 C-labeled quercetin into tobacco plants and found that approximately 20% of injected radioactivity was incorporated into the isopropyl alcohol-insoluble fraction.
11 citations
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20 Dec 1983
TL;DR: In this article, high active pancreatin is obtained by autolysis of an aqueous pulp containing isopropanol, preferably buffered with sodium bicarbonate.
Abstract: Highly active pancreatin is obtained by autolysis of an aqueous pulp containing isopropanol, preferably buffered with sodium bicarbonate, until a test precipitation with aqueous isopropyl alcohol has failed and precipitation with increasing concentration of isopropyl alcohol results in a fiber suspension which can be screened off and the immediate recovery of pancreatin from the solution further increase in the concentration of isopropyl alcohol allowed. High bulk density of the finished, dry preparation is achieved by bringing the precipitated pancreatin to a concentration between 70 and 85% of isopropanol or 80 to 95% of acetone by stirring with isopropyl alcohol or acetone, suctioned off or spun off and with treatment with dry air or nitrogen dries.
11 citations
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TL;DR: Standard solution enthalpies exhibit maxima in the region of high n-propyl alcohol and isopropyl alcohol contents in the system, while in the case of the methanol + ethanol system the standard enthalpy has a monotonic character.
Abstract: Enthalpies of solution of sodium iodide in mixtures of methanol with ethanol, n-propyl alcohol and isopropyl alcohol have been measured at 298.15 K over the entire range of mixture compositions. Standard solution enthalpies exhibit maxima in the region of high n-propyl alcohol and isopropyl alcohol contents in the system, while in the case of the methanol + ethanol system the standard enthalpy has a monotonic character. Enthalpic NaI–alcohol pair-interaction coefficients for the systems under study have been calculated and analysed.
11 citations