IGNOU MCH 4 2017 - What are the advantages of DTA and DSC over TGA?

Question

What are the advantages of DTA and DSC over TGA?

08 Mar 2018

Answer :

Word Count : 308

TGA, DTA, and DSC are three terms used to describe the analysis of compounds that take part in chemical reactions using changes in temperature of these compounds. TGA stands for Thermal Gravimetric Analysis, and DTA stands for Differential Thermal Analysis while DSC stands for Differential Scanning Calorimetry. All these three techniques are types of thermal analysis. The main difference between TGA DTA and DSC is the method of measuring the changes in samples that are caused by heat. In TGA, the change in mass of the sample is measured with the increasing temperature while, in DTA, the temperature difference that builds up between the sample and a reference is measured and in DSC, the heat released during a chemical process

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