Thermal analysis system – TG/DTA
Thermal behavior being one of the physical properties of any material that can give fair estimation of constituents, nature and usage of material. Thermogravimetry (TG) determines the weight changes in a sample, whereas Differential Thermal Analysis (DTA) measures the changes in temperature between a sample and a reference, as a function of temperature or time. The TG/DTA Analyzer combines the high flexibility of the differential thermal analysis feature with proven capabilities of the Thermogravimetry measurement technology. The combination not only ensures that the sample is exposed to identical thermal treatment and environment but allows one to determine whether an endothermic or exothermic transition is associated with weight loss in contrast to a melting or crystallization process.
Simultaneous Thermal analyzer (TG/DTA) STA7300
Specification of the instrument:
| Make | Hitachi Thermo gravimetric/ Differential Thermal Analyzer |
| Model | STA 7300 |
| Temperature range | Ambient to 1500ºC |
| Balance Type | Horizontal differential type |
| Maximum sample weight | 200 mg |
| TG measurement range | ± 400 mg |
| TG Sensitivity | 0.2 μg |
| DTA measurement range | ± 1000 µV |
| DTA RMS Sensitivity | 0.06 µV |
| Scan rate | 0.01ºC to 100 ºC/min |
Applications of the TG/DTA instrument are compositional analysis, detection of decomposition temperature, oil volatility measurements, flammability studies, heat of transition, thermal stability analysis, oxidative stability analysis, transition temperature detection etc.
About 20mg of non-explosive and non-corrosive samples is required for analysis. Samples containing Halides and Nitrates may be avoided.