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Chapter 31: Q. 31.9 (page 832)

Why are the applications of TGA more limited than those for DSC?

Short Answer

Expert verified

Melting points, crystallizations are some of the thermal transition which is not associated with only change in mass. So TGA is less used in comparison to DSC.

Step by step solution

01

Step 1. Given information

Give the reason for the limited applications of TGA in comparison to DSC.

02

Step 2. Reason for the limited applications of TGA in comparison to DSC 

TGA is one of the thermogravimetric techniques. In this process changes in chemical properties and physical properties are considered as parameters i.e. measuring the mass of the sample is the main characteristic of this process. But in the case of the DSC (differential scanning colorimetry) technique, it is associated with measuring the change in heat. DSC is more used and has a well-developed application in comparison to TGA. Melting points, crystallizations are some of the thermal transition which is not associated with only change in mass. So TGA is less used in comparison to DSC.

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Most popular questions from this chapter

It should be possible to at least partially characterize an oil shale sample using techniques discussed in this chapter. Briefly discuss two techniques appropriate to use for this purpose. Sketch typical thermal curves and discuss the information that might be obtained and problems that might be anticipated.

It should be possible to at least partially characterize an oil shale sample using the techniques discussed in this chapter. Briefly discuss two techniques appropriate to use for this purpose. Sketch typical thermal curves and discuss the information that might be obtained and problems that might be anticipated.

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Compound

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to data-custom-editor="chemistry" 400°C.
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