External users: registration to be carried out only through I-STEM portal
Additional information about sample and analysis details should be filled in the pdf form provided in the I-STEM portal under “DOWNLOAD CSRF”
Internal users (IITB): registration to be carried out only through DRONA portal
Additional information about sample and analysis details should be filled in the pdf form provided here.
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Category
- Material Characterization » Thermal Characterisation
Booking Details
Rate of temperature : 10°C /Min to 20°C/Min.
Gas: Helium gas flow 300 ml/Min.
Sample Form: Powder
Facility Management Team and Location
email ID:- tgdtams.chem@csif.iitb.ac.in,
Prof. Sanjog S. Nagarkar.
Prof. Srinivasan Ramakrishnan.
Prof. Guruswamy Kumaraswamy (Chemical Eng.)
Prof. Narendra Shiradkar (Electrical Eng.)
Facility Features, Working Principle and Specifications
Facility Description
The Thermo Gravimetric Mass Analyzer (TG-MS) features a skimmer-type interface combined with fragment-free photoionization technology, enabling the measurement of molecules without destruction. The system's high-precision gas introduction interface and soft photoionization technology allow real-time discrimination and analysis of generated gases, even when multiple components are present simultaneously. This advanced configuration is ideal for analyzing complex gas mixtures during thermogravimetric experiments.
TG-MS, a simultaneous technology coupling thermogravimetry (TG)—which determines mass change as a function of temperature—and mass spectrometry (MS), is a typical method in evolved gas analysis (EGA).
Sample Preparation, User Instructions and Precautionary Measures
1) Sample form: powder (~25 mg).
2) The analysis can't be carried out if the temperature range and the heating rate are not specified.
3) Explosive, poisonous samples and samples giving rise to toxic/obnoxious gases/fumes on heating cannot be undertaken for Thermal Analysis.
4) The sample holders are of Aluminum (Al) and Platinum (Pt). The user must ensure that samples will not react with crucible materials during Thermal Analysis.
In order to safeguard the instrument from the damage it is absolutely essential that you must state the decomposition products associated with the heating cycle of your sample. Any functional group which might potentially explode, or form foams is strictly not allowed (Representative examples are Azide, Perchlorate, poly-nitro or nitrogen-rich compounds, etc.) Explosive, poisonous samples and samples giving rise to toxic/obnoxious gases/fumes on heating cannot be undertaken for Thermal Analysis.
Charges for Analytical Services in Different Categories
| IITB (TAs) | IITB Students | IITB-Monash Students | Academic Institutes | National Labs | Sine (letter from SINE reqd.) | Research Park MSME) (letter from RP reqd.) | Research Park (Big Industry partners) (letter from RP reqd.) | and MSME not associated with RP (appropriate certificate required) | Industries | |
| Charges/Hour/Sample | X/2 | X | X | 2X | 5X | 5X | 5X | 7.5X | 7.5X | 10X |
| For standard measurement RT-500°C 10K/min | 50 | 100 | 100 | 200 | 500 | 500 | 500 | 750 | 750 | 1000 |
| For measurement >500° 10K/min | 100 | 200 | 200 | 400 | 1000 | 1000 | 1000 | 1500 | 1500 | 2000 |
| GST | NO GST | NO GST | 18 % GST | 18 % GST | 18 % GST | 18 % GST | 18 % GST | 18 % GST | 18 % GST | 18 % GST |
NOTE: - For Thermal Analysis, standard ramp is 10 ℃/min. Heating rates less than standard rate will be charged double.
Applications
TGA / TG-MS analysis
Sample Details
Powder form
Sample should be in pure form