نتایج جستجو برای: thermogravimetry analysis
تعداد نتایج: 2824606 فیلتر نتایج به سال:
In the vitrification of nuclear wastes, the melter feed (a mixture of nuclear waste and glass-forming and modifying additives) experiences multiple gas-evolving reactions in an electrical glass-melting furnace. We employed the thermogravimetry-gas chromatography–mass spectrometry (TGA-GC–MS) combination to perform evolved gas analysis (EGA). Along with identifying the gases evolved, we performe...
In the current work the kinetics of dehydration of ziprasidone hydrochloride monohydrate was studied by nonisothermal thermogravimetry. Ziprasidone hydrochloride monohydrate was heated from 30 to 150° with a heating rate of 5° per min under nitrogen gas atmosphere and weight loss data were collected. Powder X-ray difraction was used to characterize the solid before and after dehydration. The we...
The polyamine (PA) was prepared by condensation of 1,4-bischloromethyl benzene and benzidine. The PA was then treated with cyanuric chloride at 0°C followed by reaction with 5-amino-8-Hydroxyquinoline in THF in conc. NaOH (PH 9-10) at room temperature for 8 hrs. The resultant polymer designated as polyamine-s-triazine-5-amino8-Hydroxyquinoline (PATHQ) was characterized by elemental analysis, IR...
In the last decade, adsorption has been used to minimize the pollution caused by dyes, which represents a serious environmental problem. In this context, this work reports the preparation of phthalic anhydride-modified cellulose (PhCel), through the reaction of cellulose (Cel) with phthalic anhydride (Ph). The efficiency of the reaction was observed by elemental analysis, Fourier Transform Infr...
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