Natural Plant Extracts as Acid-Base Indicator and Determination of Their pKa Value
نویسندگان
چکیده
منابع مشابه
architecture and engineering of nanoscale sculptured thin films and determination of their properties
چکیده ندارد.
15 صفحه اولPlant extracts as natural antioxidants in meat and meat products.
Antioxidants are used to minimize the oxidative changes in meat and meat products. Oxidative changes may have negative effects on the quality of meat and meat products, causing changes in their sensory and nutritional properties. Although synthetic antioxidants have already been used but in recent years, the demand for natural antioxidants has been increased mainly because of adverse effects of...
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Cxciii. Determination of Maltose in Plant Extracts
DAVIS and DAISH [1912-13] have shown that during the acid hydrolysis of a mixture of maltose and sucrose, appreciable quantities of the resulting laevulose and smaUer quantities of dextrose are destroyed, thereby rendering an estimation of these sugars by acid hydrolysis erroneous. Under conditions recommended by Brown and Morris [1893] for hydrolysing maltose in presence of sucrose, about 30 %...
متن کاملAcid-base indicator properties of sulfonephthaleins and benzeins in acetonitrile.
Sulfonephthaleins and benzeins differ only in the presence of a sulfonic acid group in the former. In aqueous medium, both exhibit two color changes, one from yellow to the strongly colored acid form in strongly acid medium, and one from yellow to the strongly colored basic form. The indicator constants of the sulfonephthaleins are about the same as those of the corresponding benzeins. In the p...
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ژورنال
عنوان ژورنال: Journal of Chemistry
سال: 2019
ISSN: 2090-9063,2090-9071
DOI: 10.1155/2019/2031342