What is differential thermal analysis and its working principle?
What is differential thermal analysis and its working principle?
Differential Thermal Analysis (DTA) • Principle: The basic principle involved in DTA is the temperature difference (∆T) between the test sample and an inert reference sample under controlled and identical conditions of heating or cooling is recorded continuously as a function of temperature or time, thus the heat …
What is principle of DSC?
Principles of Differential Scanning Calorimetry (DSC) – the most used thermal analysis technique in pharmaceuticals. DSC is used to measure enthalpy changes due to changes in the physical and chemical properties of a material as a function of temperature or time.
What is derivative differential thermal analysis?
A method for precise determination in thermograms of slight temperature changes by taking the first derivative of the differential thermal analysis curve (thermogram) which plots time versus differential temperature as measured by a differential thermocouple. Also known as DDTA.
What are the applications of DTA?
DTA is widely used in the pharmaceutical and food industries. DTA may be used in cement chemistry, mineralogical research and in environmental studies. DTA curves may also be used to date bone remains or to study archaeological materials. Using DTA one can obtain liquidus & solidus lines of phase diagrams.
What is Thermogram and differential Thermogram?
4.21 Differential Thermal Analysis (DTA) DTA measures the temperature difference between a sample and a reference as temperature is increased. A plot of the temperature difference (thermogram) reveals exothermic and endothermic reactions that may occur in the sample.
What is the other name of differential thermal analysis?
Differential scanning calorimetry (DSC) is a further development of the earlier technique called differential thermal analysis (DTA). In both DSC and DTA, a sample is measured against an inert reference. In DTA, the sample and the reference are heated simultaneously in a single furnace with a symmetrical design.
What are the types of thermal analysis?
Thermal Analysis Techniques
- THERMOGRAVIMETRIC ANALYSIS (TGA)
- THERMOGRAVIMETRIC ANALYSIS WITH EVOLVED GAS ANALYSIS (TG-EGA)
- DIFFERENTIAL SCANNING CALORIMETRY (DSC)
- THERMOMECHANICAL ANALYSIS (TMA)
- DYNAMIC MECHANICAL ANALYSIS (DMA)
