نتایج جستجو برای: ether

تعداد نتایج: 21758  

This study demonstrates the spectral data for two triarylmethane dyes, malachite green (MG) and crystal violet (CV) at room temperature. Effects of micellar environment, and crown ether addition on the spectral behaviour of the dyes were studied using absorption spectroscopic method. The dye-anionic surfactant interactions in micellar media were investigated. The chosen surfactants with differe...

2015
Hejun Guo

Abstract—Five palm oil ether monoesters utilized as novel biodiesels were synthesized and structurally identified in the paper. The investigation was made on the effect of ether species on physicochemical properties of the palm oil ether monoesters. The results showed that density, kinematic viscosity, smoke point, and solidifying point increase linearly with their –CH2 group number in certain ...

Journal: :Scientific American 1912

Journal: :British Journal of Anaesthesia 1952

2010
BRANISLAV JOVIĆ ALEKSANDAR NIKOLIĆ ERNA DAVIDOVIĆ SLOBODAN PETROVIĆ

Abstract: This paper reports the results of an FT-IR and NIR study of N-methylformamide in carbon tetrachloride solution in presence of ethers as the O-electron donors, i.e., diethyl ether (DEE), diisopropyl ether (DiPE), methyl t-butyl ether (MtBE), dibutyl ether (DBE), dipentyl ether (DPE), tetrahydrofuran (THF) and tetrahydropyran (THP). The spectroscopic characteristics of the N–H···O hydro...

Journal: :Analytical chemistry 2008
Jing Hu Kailai Xu Yunzhen Jia Yi Lv Yubao Li Xiandeng Hou

A gas sensor was developed by using the chemiluminescence (CL) emission from the oxidation of ethyl ether by oxygen in the air on the surface of borate glass. Theoretical calculation, together with experimental investigation, revealed the main CL reactions: ethyl ether is first oxidized to acetaldehyde and then to acetic acid, during which main luminous intermediates such as CH 3CO (*) are gene...

Journal: :Canadian Anaesthetists' Society journal 1978
V Pratilas M G Pratila J P Bramis

The effects of halothane and diethyl ether on the regenerating liver following 70 per cent hepatectomy were studied in Fisher/344 (F) rats. Our aim was to discover whether halothane administered repeatedly and over prolonged periods could influence the liver regenerative process or hepatocyte function. We also wished to know if the effects of halothane differed from those of diethyl ether. We f...

Journal: :Angewandte Chemie 2015
Zhongbao Jian Stefan Mecking

The previously unresolved issue of polymerization of allyl monomers CH2 CHCH2 X is overcome by a palladium-catalyzed insertion polymerization of diallyl ether as a monomer. An enhanced 2,1-insertion of diallyl ether as compared to mono-allyl ether retards the formation of an unreactive five-membered cyclic O-chelate (after 1,2-insertion) that otherwise hinders further polymerization, and also ...

Journal: :British journal of anaesthesia 1963
J W MOSTERT J METZ

The in vivo and in vitro haemolytic activity of guaiacol glycerol ether has been investigated. Intravenous injections in concentrations of 12.5 per cent or greater produced intravascular haemolysis. The haemolysis produced was not related to the speed of injection. In vitro studies with concentrations of guaiacol glycerol ether confirmed that the critical concentration for the production of hae...

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