نتایج جستجو برای: thermogravimetry analysis

تعداد نتایج: 2824606  

2004
G. Bannach E. Schnitzler C. B. Melios

The synthesis of sodium 2-chlorobenzylidenepyruvate and its corresponding acid as well as binary, binary together with it’s acid or hydroxo-2-chorobenzylidenepyruvate of aluminium (III), gallium (III) and indium (III), were isolated. Chemical analysis, thermogravimetry, derivative thermogravimetry (TG/DTG), simultaneous thermogravimetry-differential thermal analysis (TG-DTA) and X-ray powder di...

2006
C. T. Carvalho A. B. Siqueira E. C. Rodrigues M. Ionashiro

Solid-state M-2-MeO-Bz compounds, where M stands for bivalent Mn, Co, Ni, Cu and Zn and 2-MeO-Bz is 2-methoxybenzoate, have been synthesized. Simultaneous thermogravimetry-differential thermal analysis (TG-DTA), thermogravimetry, derivative thermogravimetry (TG/DTG), differential scanning calorimetry (DSC), X-ray powder diffractometry, infrared spectroscopy and complexometry were used to charac...

2013
L. M. Al-Harbi E. H. El-Mossalamy A. Y. Obaid M. A. EL-RIES

Thermal analysis of some antihypertensive drugs, Telmisartan, Cilazapril and Terazosin HCL was achieved. Thermogravimetry, derivative thermogravimetry and differential thermal analysis were used through the work. Thermogravimetric parameters such as activation energy, frequency factor and reaction order were calculated. The results show the stability value decrease in the order Telmisartan > Ci...

Journal: :Journal of the Japan Institute of Energy 1997

Journal: :علوم و تکنولوژی پلیمر 0
وحیده شاهدی فر ایرج امیری امرایی امیرمسعود رضادوست مریم حاجی حسینی

inhibitory effect of double-base solid propellants is exerted to control and prevent the burning degree of the exposed area which is due to longer burning time. in this research a composite inhibitor based on cotton fibers/epoxy resin was manufactured by filament winding technique. some flame retardant materials such as antimony trioxide and tetrachlorophthalic anhydride were employed as the co...

فقیهیان, حسین , مکی‎زاده, محمدعلی ,

Zeolites are hydrated crystalline aluminosilicates of alkali and alkaline earth cations. Their three dimensional framework consist of [SiO4]- and [AlO4]- tetrahedra. Beside their low price and abundance, three main properties of zeolites i.e: adsorption, ion exchange and catalytical properties promote their versatile industrial applications. In Iran, lack of a systematic and comprehensive resea...

Journal: :Molecules 2018
Jun-Ling Tu Jiao-Jiao Yuan

The thermal decomposition behavior of olive hydroxytyrosol (HT) was first studied using thermogravimetry (TG). Cracked chemical bond and evolved gas analysis during the thermal decomposition process of HT were also investigated using thermogravimetry coupled with infrared spectroscopy (TG-FTIR). Thermogravimetry-Differential thermogravimetry (TG-DTG) curves revealed that the thermal decompositi...

Journal: :The Analyst 2015
Sonja Visentin Nadia Barbero Francesca Romana Bertani Mariangela Cestelli Guidi Giuseppe Ermondi Guido Viscardi Valentina Mussi

Principal component analysis is applied to analyse the Raman maps collected on carbon nanotubes at different degrees of oxidation and functionalization with dye labeling molecules. The results are used to demonstrate that the technique is extremely effective in clustering data and comparing preparation protocols, so that it enables drawing of a fast and reliable classification of the molecule p...

Journal: Journal of Nanoanalysis 2016
Abdolraouf Samadi-Maybodi Amir Vahid Mohammad Teymouri

In this contribution, an effective and soft method for removal of template from nanochannels of mesoporous silica (MCM-41) is proposed. This method is based on chemically-modified solvent extraction which enhanced by means of an auxiliary organic compound, i.e. benzene sulfonamide. Template removal was performed in soft condition, i.e. in the presence of diluted sulfuric acid and at ambient tem...

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