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The behavior of water absorption and dehydration of organic compound α-Cyclodextrin

TA-5008: The behavior of water absorption and dehydration of organic compound α-Cyclodextrin


User can study the detail of influenced heating process of raw material by changing water vapor partial pressure in the atmosphere using TG-DTA connected to the humidity generator.

In the case of quantitative water in the material for thermal analysis (Constant heating method, Sample Controlled TG), it is available to measure each amount of water for adhered water and crystal water because of different of dehydration temperature due to the binding forces difference. On the other hand, if there are less difference of binding forces in each water, then it is difficult to perform separated determination because of overlapping of dehydration temperature.

Thermal analysis products from Rigaku

TG-DTA is a hyphenated technology generally referred to as simultaneous thermal analysis (STA).



DSC is a thermal analysis technique that quantifies the amount of energy in a reaction.

Quantifies the energy changes in reactions such as melting, transition, crystallization and glass transition temperature.

DSC8271 is a high-temperature type DSC with a maximum temperature of 1,500°C.

TMA is the measurement of a change in dimension or mechanical property of the sample while it is subjected to a controlled temperature program.


The compact humidity generator (HUM-1) is connected to the TG-DTA for measurements under constant relative humidity water vapor atmosphere.


TMA/HUM measures change in dimension or mechanical property of a sample while subjected to a temperature regime under water vapor atmosphere with a constant relative humidity.

Thermo Mass Photo combines simultaneous thermal analysis with mass spectrometry. This technique is suitable for the qualitative analysis of  evolved gases coincident with the STA signal.

In TG-FTIR, gases evolved by volatilization or thermal decomposition are qualitatively analyzed, which allows you to track changes in the generated amount along with the temperature change.