نتایج جستجو برای: washing solvents
تعداد نتایج: 57722 فیلتر نتایج به سال:
This study is a novel approach toward the development of chemical-free and sustainable textile dyeing process with minimum environmental risks. Cotton fabrics were cationized (3-chloro-2-hydroxypropyl) trimethylammonium chloride in four concentrations subsequently dyed black tea extract. Eco-friendly colorant extraction from raw leaves was carried out aqueous media avoiding use hazardous organi...
BACKGROUND The pollen coat is the first structure of the pollen to encounter the mucosal immune system upon inhalation. Prior characterizations of pollen allergens have focused on water-soluble, cytoplasmic proteins, but have overlooked much of the extracellular pollen coat. Due to washing with organic solvents when prepared, these pollen coat proteins are typically absent from commercial stand...
ABSTRACT Phytic acid (PA) is a new type of naturally occurring pharmaceutical for afflictions such as cancer, diabetes, and renal calculi. The efficient, low-cost extraction PA from biowaste much sought after. Herein, highly pure was obtained rice bran by adsorption at low pH onto porous chitosan nanofiber hydrogels. Due to the large surface area nanofiber-based hydrogels, equilibrated within 6...
oxidative addition reactions of 1,4-diiodo-butane and 1,3-diiodo-propane with [ptme2(ph2phen)]; in which ph2phen=4,7-diphenyl-1,10-phenanthroline, were studied in different solvents such as acetone and benzene.oxidative addition reaction of [pt me2(ph2phen)] with i(ch2)4i and i(ch2)3i produced the [pt me2i(ch2)4(ph2phen)i] (1a) and [pt me2i(ch2)3(ph2phen)i] (1b).all the platinum (iv) products w...
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