The alcohol-soluble portion of the settlings which separate from clear crude cottonseed oil has been studied further. Although the oil had stood in the laboratory for about 3 years before the settlings were removed for the investigation, it was free from rancidity and in excellent condition....
It has been found in the "settlings" from this oil. The treatment of the oil with water causes only a partial separation of this phosphatide.The phosphatides, resins, and presumably other substances present in small quantities in the crude oil have emulsifying properties and are undoubtedly ...
The resin is partially removed from an alcoholic solution by an alcoholic solution of copper acetate in the form of a dark yellow flocculent precipitate. The copper salt is insoluble in alcohol and ether. It is believed that part of the deep red color of the crude oil is due to this ...
(SFEF) method from Iranian heavy oil, were investigated by the methods of sinusoidal oscillation and interfacial relaxation, suggesting that with the addition of polymer or alkali, the dilatational properties of interfacial film containing crude oil constituents changed obviously and the phase angles ...
4) light oil distillate 轻油馏分5) light component 轻组分 1. In this paper, in order to study the volatility of light components of Sudan crude oil under certain conditions, some experiments about volatility of Sudan crude oil were carried out by using pipe-flow experimental device. 本文...
The study is aimed at identifying the chemical constituents of N. laevis crude plant extracts by high-performance liquid chromatography (HPLC) on line with an untargeted high-resolution mass spectrometry. The used HPLC method showed to be suitable for the determination of withasomnine, newbouldine,...
and their antimicrobial activities were tested by agar plate diffusion method.RESULTS Twenty-eight compounds were separated from the crude essential oils and 23 compounds were identified.The bacteriostatic experiment results indicated that this volatile oil has strong inhibitory effects on Staphyloccocus ...
内容提示: Constituents of commercial Labdanum oil{Peter Weyerstahl, 1 * Helga Marschall, 1 Marlies Weirauch, 1 Katrin Thefeld 1 and Horst Surburg 21 Institut fu¨r Organische Chemie, Technische Universita¨t Berlin, Strasse des 17. Juni 135, D-10623 Berlin, Germany2 Haarmann & Reimer GmbH...
The JADE algorithm application to the FTIR spectral matrix of different commercial gasoline performs the extraction of the spectral components which characterize each gasoline or oil spill sample allowing the recognition of the sources [36]. This study also shows that ICA application for the ...
(2013) proved that pumpkin seeds are rich source of crude oil, crude protein, crude fiber and carbohydrates. They studied nutritional composition of Cucurbitaceae family seeds harvested from selected regions of Kenya and found that seeds from all varieties of pumpkins are rich in...