Iodine number of linseed and petroleum oils
نویسندگان
چکیده
منابع مشابه
Petroleum-derived spray oils: chemistry, history, refining and formulation
Modern use of petroleum-derived oils as agricultural crop protectants dates back to the 1800s, but it was not until the latter half of the 20th century that advances in petroleum chemistry allowed substantial modification and diversification in their commercial applicability. In the 1880s, a kerosene–soap emulsion was used with some success against scales and aphids in citrus trees. The search ...
متن کاملThe Determination of the Iodine values of Fats and Oils
As early as 1854 Knop proposed the use of potassium bromate and hyclrobromic acid for the determination of Iodine values and lately again Tolle (J. Pharm. Chem, 1905, 31, 111 and 183) and Mossier (Ph^n. Zeit., 1907) have proposed the use of Bromine from one source or another for the determination of the degree of unsaturation of fats. Mossier uses a mixture of potassium bromate and bromide acid...
متن کاملCharacterization of Petroleum Crude Oils using Laser Induced Fluorescence
The use of laser induced fluorescence (LIF) spectroscopy to characterize crude oil has privileges compared to conventional techniques in terms of reducing the size of sample, rapidity of measurements, high sensitivity and simplicity of sample handling and possibility of in situ measurements. The fluorescence radiation emitted from crude oil is the result of the interaction between the aromatic ...
متن کاملRapid Estimation of Tocopherol Content in Linseed and Sunflower Oils-Reactivity and Assay.
The reactivity of tocopherols with 2,2-diphenyl-1-picrylhydrazyl (DPPH) was studied in model systems in order to establish a method for quantifying vitamin E in plant oils. The method was optimized with respect to solvent composition of the assay medium, which has a large influence on the course of reaction of tocopherols with DPPH. The rate of reaction of α-tocopherol with DPPH is higher than ...
متن کاملFatty Acid Profile and Biological Activities of Linseed and Rapeseed Oils.
It has been postulated that fatty acids found in edible oils may exert beneficial health effects by the modulation of signaling pathways regulating cell differentiation and proliferation, especially in the treatment of cardiovascular diseases. In the present study, the biological effects of selected edible oils--linseed (LO) and rapeseed (RO) oils--were tested in vitro on fibroblast cells. The ...
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ژورنال
عنوان ژورنال: Journal of the Franklin Institute
سال: 1914
ISSN: 0016-0032
DOI: 10.1016/s0016-0032(14)90995-4