نتایج جستجو برای: hexamethylenetetramine
تعداد نتایج: 253 فیلتر نتایج به سال:
Hexamethylenetetramine-bromine on wet alumina rapidly regenerates carbonyl compounds from their corresponding semicarbazone using microwave under solventless system.
The administration of methenamine mandelate (Mandelamine) to pregnant women causes the levels of estriol in their urines to be unmeasurably low when acid hydrolysis is used. When enzyme hydrolysis replaces acid hydrolysis, normal estriol values are obtained. This result is attributed to the formaldehyde released by acid from hexamethylenetetramine, a constituent of the drug. The formaldehyde re...
Y(2)O(3) nanoparticles with strong red luminescence (quantum yield about 25%) was synthesized via simple hydroxylation of yttrium nitrate using hexamethylenetetramine as an additive; the red luminescence is emitted from oxygen-related defects of pure Y(2)O(3) nanoparticles, and is tunable by altering the additive.
The aim of the study was to establish influence a co-precipitation agent (i.e., NaOH–immediate precipitation; hexamethylenetetramine/urea–gradual precipitation and growth nanostructures) on properties catalytic activity as-synthesized Au-CeO2 nanocomposites. All catalysts were fully characterized with use XRD, nitrogen physisorption, ICP-OES, SEM, HR-TEM, UV-vis, XPS, tested in low-temperature ...
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