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.

Pharmaceutical compositions containing kukui nut oil

Abstract: The present invention provides pharmaceutical compositions comprising an effective amount of dermopharmaceutical active agent, kukui nut oil and a pharmaceutically acceptable base which comprises ingredients selected from the group consisting of propylene glycol, glycerin, xanthin gum, methyl paraben, propyl paraben, stearic acid, menthyl lactate, cetearyl alcohol (and) ceteareth 20, polyoxyl 40 stearate, glyceryl stearate (and) PEG-100 stearate, isopropyl myristate, isopropyl alcohol, oleyl alcohol, oleic acid, dimethicone, or C12-C15 alcohols benzoate and purified water. The inclusion of kukui nut oil acts in synergy as an adjunct to the therapeutic agent to promote the alleviation of the medical condition being treated.

Heat-Integrated Azeotropic Distillation and Extractive Distillation for the Separation of Heterogeneous Ternary Azeotropes of Diisopropyl Ether/Isopropyl Alcohol/Water

Abstract: The formation of heterogeneous ternary azeotropes poses a serious challenge to the recovery of diisopropyl ether (DIPE) and isopropyl alcohol (IPA) from the industrial effluent. To reduce the energ...

Optimization study on the azeotropic distillation process for isopropyl alcohol dehydration

Abstract: Modeling and optimization work was performed using benzene as an entrainer to obtain a nearly pure anhydrous isopropyl alcohol product from dilute aqueous IPA mixture through an azeotropic distillation process. NRTL liquid activity coefficient model and PRO/II with PROVISION 6.01, a commercial process simulator, were used to simulate the overall azeotropic distillation process. We determined the total reboiler heat duties as an objective function and the concentration of IPA at concentrator top as a manipulated variable. As a result, 38.7 mole percent of IPA at concentrator top gave the optimum value that minimized the total reboiler heat duties of the three distillation columns.

Synthesis and sensitive properties of poly‐(bistriethylphosphine)‐platinum‐diethynylbenzene for organic vapor detection

Abstract: Poly-(bistriethylphosphine)-platinum-diethynylbenzene (Pt-DEB) was synthesized by dehydrohalogenation reaction. X-ray photoelectron spectroscopy (XPS), FTIR, and 1H-NMR spectra were used to identify the formation of Pt-DEB target material. Sensitive properties of Pt-DEB-based quartz crystal microbalance (QCM) sensor to various organic vapors such as trichloromethane, tetrahydrofuran, acetone, isopropyl alcohol, ethanol, and methanol have been studied. The results show that Pt-DEB has good reversibility, reproducibility, and linear sensitivity to organic vapors at room temperature. The sensitivity of Pt-DEB (dissolved in CHCl3) toward CHCl3 is clearly higher than that toward other analytes, and a larger molecular weight of alcohol has a higher sensitivity response. The Pt-DEB-based QCM gas sensor shows low detection limits ranging from 1.0 to 3.56 ppm for the organic vapors and stable performance during a period of 30 days. © 2009 Wiley Periodicals, Inc. J Appl Polym Sci, 2010

Method of producing compound originating from polysaccharide-based biomass

Abstract: A method of producing a compound originating from a polysaccharide-based biomass includes at least one of a saccharification step that produces a sugar solution containing a monosaccharide and/or an oligosaccharide from a product obtainable by hydrolyzing the polysaccharide-based biomass; a fermentation step that ferments the sugar solution containing the monosaccharide and/or oligosaccharide originating from the polysaccharide-based biomass; and a treatment that removes a fermentation inhibitor with the use of a separation membrane having a glucose removal rate and an isopropyl alcohol removal rate which simultaneously satisfy the following relationships (I) and (II) when a 500 ppm aqueous glucose solution at pH 65 at 25° C and a 500 ppm aqueous isopropyl alcohol solution at pH 65 at 25° C are respectively permeated through the membrane at an operation pressure of 05 MPa, prior to the saccharification step and/or in the step prior to the fermentation step: Glucose removal rate≧80% (I) Glucose removal rate−Isopropyl alcohol removal rate≧20% (II)