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 article, a potential function of the form V = 12ΣkVk(1 − cos kα) was derived for torsional transitions in the far-infrared spectra of isopropyl alcohol, ethyl mercaptan and tert-butyl-mercaptan.
40 citations
TL;DR: Experimental results indicated that at inlet temperatures of under 40 °C and a relative humidity of under 80%, the removal efficiency of a zeolite concentrator can be maintained well over 90% and the optimal rotation speed of the concentrator is between 3 and 4.5 rph.
Abstract: The use of a honeycomb zeolite concentrator and an oxidation process is one of the most popular methods demonstrated to control volatile organic compound (VOCs) emissions from waste gases in semiconductor manufacturing plants. This study attempts to characterize the performance of a concentrator in terms of the removal efficiencies of semiconductor VOCs (isopropyl alcohol [IPA], acetone, propylene glycol methyl ether [PGME], and propylene glycol monomethyl ether acetate [PGMEA]) under several parameters that govern the actual operations. Experimental results indicated that at inlet temperatures of under 40 °C and a relative humidity of under 80%, the removal efficiency of a zeolite concentrator can be maintained well over 90%. The optimal rotation speed of the concentrator is between 3 and 4.5 rph in this study. The optimal rotation speed increases with the VOCs inlet concentration. Furthermore, reducing the concentration ratio helps to increase the removal efficiency, but it also increases the incineration cost. With reference to competitive adsorption, PGMEA and PGME are more easily adsorbed on a zeolite concentrator than are IPA and acetone because of their high boiling points and molecular weights.
40 citations
Patent•
10 Oct 1974
TL;DR: Low foaming acid sanitizer compositions containing anionic surfactants which normally exhibit high-foaming, e.g. dodecyl benzene sulfonic acid, are obtained by incorporating in the composition a foam suppressant combination of a C 8 -C 18 -aliphatic alcohol, or a C 9 -C 12 -alkyl-phenol, such as tridecyl alcohol and a polyvalent metal salt.
Abstract: Low foaming acid sanitizer compositions containing anionic surfactants which normally exhibit high-foaming, e.g. dodecyl benzene sulfonic acid, are obtained by incorporating in the composition a foam suppressant combination of a C 8 -C 18 -aliphatic alcohol, or a C 9 -C 12 -alkyl-phenol, e.g. tridecyl alcohol and a polyvalent metal salt, e.g. aluminium sulfate. The usual solubilizers such as propylene glycol and isopropyl alcohol can be present as optional ingredients. Anti-microbial properties of the composition are not adversely affected by the foam suppressants and the compositions exhibit low foaming even in deionized water.
39 citations
39 citations
TL;DR: In this paper, the interfacial bonding behavior and UV resistibility of a ZnO/glass fiber reinforced epoxy (ZGFRE) composite is investigated. And the solvent effect in relation to the dispersion properties of ZnOs in the composite is also discussed.
39 citations