Estimativa da entalpia reticular (Dm Hmº) de adutos através de termogravimetria: uso de uma equação empírica [PDF]
Quimica Nova, 1997 An empirical equation: DMHmo = ti/b (where ti is the Kelvin temperature of the beginning of the thermal decomposition obtained from the thermogravimetry of the adducts; b is an empirical parameter wich depends on the metal halide and on the number of ligands) was obtained and tested for 53 adducts MX2.nL (where MX2 is a metal halide from the zinc group)
Robson Fernandes de Farias +1 more
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O emprego da termogravimetria para determinar a energia de ativação do processo de combustão de óleos combustíveis [PDF]
Quimica Nova, 2006 Activation energy (Ea) is a parameter that can be applied to make predictions about the quality of oils to be used in an ICO engine. In this study, Ea was determined by thermogravimetry following two different procedures: ASTM E 1641 and Model-free kinetics.
Leiva, Cecilia Rocío Morales +2 more
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Quimica Nova, 2000 By using thermochemical data reported for a series of chelates of the type [Ln(thd)3], thd = 2, 2, 6, 6 tetramethyl- 3,5-heptanedione and Ln = La, Pr, Nd, Sm, Gd, Tb, Ho, Er, Tm and Yb, empirical correlations were found involving thermochemical parameters (e.g.
Robson Fernandes de Farias +1 more
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Determinação da espessura da camada polimérica de fases estacionárias imobilizadas para cromatografia líquida de alta eficiência por termogravimetria [PDF]
Quimica Nova, 2008 This paper presents a simple and practical thermogravimetric method for determining the layer thickness of immobilized polymer stationary phases used in reversed-phase high-performance liquid chromatography. In this method, the weight loss of different polysiloxanes immobilized onto chromatographic supports, determined over the temperature range 150 ...
Anizio Faria +2 more
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Uso da termogravimetria na determinação do teor de ferro em comprimido contendo sulfato ferroso
Brazilian Journal of Thermal Analysis, 2016 Marcia Lima da Silva +4 more
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Validação de métodos analíticos: determinação da humidade por termogravimetria
2021O presente trabalho foi efetuado na empresa Silliker, Portugal, S.A. pertencente ao grupo Mérieux NutriSciences, líder na prestação de serviços do controlo e qualidade alimentar, no âmbito de Estágio curricular do Mestrado em Biotecnologia Alimentar da Universidade de Aveiro.
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Preparo de óxido de nióbio suportado em alumina por deposição química em fase vapor: caracterização por espectroscopia vibracional e termogravimetria [PDF]
Quimica Nova, 1998 Alumina supported niobium oxide was prepared by chemical vapor deposition (CVD) of NbCl5. The alumina was calcined and pretreated at differents temperatures in order to vary the density of OH groups on the surface which was determined by thermogravimetric analysis. A good correlation was found between the amount of anchored niobium and the total number
Silva, Carmen Lúcia T. da +4 more
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USO DA TERMOGRAVIMETRIA (TG) NA DETERMINAO DE CLCIO EM INCRUSTAES DA INDSTRIA DO PETRLEO
Anais do 7º PdPetroexaly +2 more sources
PRIN 2003, Museo Archeologico Regionale Baglio Anselmi, "Atti"
CAMPANELLA, Luigi +2 more
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