termogravimetrisen
Termogravimetrisen is a thermal analysis technique used to measure the change in mass of a sample as a function of temperature or time. The sample is heated or cooled in a controlled atmosphere, and a sensitive balance continuously records its mass. This allows researchers to study processes such as decomposition, oxidation, reduction, dehydration, and desorption. The data obtained is typically plotted as a thermogravimetric curve, with mass loss or gain on the y-axis and temperature or time on the x-axis. Key features of this curve, such as the onset and endset temperatures of mass changes and the total mass loss, provide valuable information about the material's thermal stability and composition. Different atmospheres, such as inert gases (nitrogen, argon) or reactive gases (oxygen, air), can be employed to investigate specific reactions. The rate of heating also influences the observed mass changes. Applications of termogravimetrisen are widespread across various scientific and industrial fields, including materials science, chemistry, pharmaceuticals, and environmental analysis. It is particularly useful for identifying unknown substances, determining the purity of compounds, and characterizing polymers and inorganic materials.