STA HP 3 (high pressure TG-DSC)
Linseis introduced the all new STA HP 3 (TGA+DSC) table top high pressure thermogravimetric, simultaneous thermal analysis instrument. The STA HP 3 is the result of 25 years of experience thermal analysis under high pressure. The superior high speed micro-furnace with a maximum temperature of 1200°C, top loading microbalance, true TG-DSC Thermogravimetry-differential scanning calorimetry design permit exiting new opportunities. The table top design, optional vapor generator and different gas dosing systems provides utmost flexibility.
Worlds only top loading combined TG-DSC (Thermogravimeter and Differential Scanning Calorimeter). For experiments up to 1200°C and up to 150 bar in reactive or inert atmospheres.
Easy user exchangeable TGA or TG-DSC plug and play sensors. The right choice for any given experiment gives you the flexibility to analyze TGA only experiments with volumes up to 1 ml or combined TGA-DSC analysis with up to 0.12 or 0.3 ml volume.
TG-DSC Thermogravimetry-differential scanning calorimetry arrangement permits the combined analysis of weight change and caloric events like endothermal or exothermal reactions or phase transitions in one run and under the same temperature, gas and pressure conditions.
|MODEL||STA HP 3|
|Temperature range:||RT up to 1200°C|
|Pressure range:||up to 150 bar|
|Sample mass:||Up to 5 g|
|TG-DSC Sensors:||Type E/K/S/B/C|
|Electronics:||Integrated or separation on electronics|
|Interface:||USB or Ethernet|
|Gas Dosing:||1, 2 or 3 Gases (more on request)|
Customized gas control
The LINSEIS TG-DSC high pressure series can be equipped with any number of mass flow controllers (MFCs), depending on the customer’s needs, to control, mix and handle a wide range of gases. This allows full control of atmospheres from 10-4mbar up to 150 bar in a temperature range from room temperature up to 1200°C.
Additionally, there is the possibility to add condensate traps, water vapor generators and also heated transfer lines for dosing of steam and other condensing gases. All gas control panels fulfill high German quality and safety standards and are user friendly designed to guarantee best possible performance.
The all new Platinum Software greatly enhances your workflow as the intuitive data handling only requires minimum parameter input.
AutoEval offers a valuable guidance for the user when evaluating standard processes such as glass transitions or melting points. Thermal library product identification tool, provides a database with 600 polymers permitting an automatic identification tool for your tested polymer. Instrument control and/or surveillance through mobile devices gives you control wherever you are.
- Software packages are compatible with latest Windows operating system
- Set up menu entries
- All specific measuring parameters (User, Lab, Sample, Company, etc.)
- Optional password and user levels
- Undo and Redo function for all steps
- Infinite heating, cooling or dwell time segments
- Multiple language versions such as English, Germany, French, Spanish, Chinese, Japanese, Russian, etc. (user selectable)
- Evaluation software features a number of functions enabling a complete evaluation of all types of data
- Multiple smoothing models
- Complete evaluation history (all steps can be undone)
- Evaluation and data acquisition can be performed simultaneously
- Data can be corrected using zero and calibration correction
- Data evaluation includes: Peak separation software Signal correction and smoothing, first and second derivative, curve arithmetic, data peak evaluation, glass point evaluation, slope correction. Zoom / individual segment display, multiple curve overlay, annotation and drawing tools, copy to clip board function, multiple export features for graphic and data export, reference based correction
Measurement of Calciumoxalate at 100bar constant pressure
The STA HP3 can be operated also at high pressures such as 100bar. The scheme shows the DSC and TG signal of a calcium oxalate run in 100 bar static nitrogen atmosphere at a linear heating rate of 20K/min up to 600°C. The red TG curve shows the first two mass loss steps that are well known for calcium oxalate.
However the first effect is shifted in temperature due to the high ambient pressure. The first effect is the loss of water, where it is notable that the enthalpy peak ends clearly after the mass loss effect which means the water is released but still need more energy to evaporate due to the high ambient pressure.
The second peak is the loss of carbon monoxide which happens at nearly the same temperature like at lower pressures. The reason is that this effect is a structural decomposition reaction that is happening independent from ambient pressure. Even if the CO is finally released it is not so much affected by the high pressure like the water in the first mass loss step as it is not in a chemical balance and part of an irreversible decomposition.