How can I change units in TGA (unit conversion in dTG) ?

How to quantify carbon deposition on CuZnAl catalyst?

Dear All, I want to quantify carbon deposition on the surface of the CuZnAl catalyst. I have tried thermogravimetric analysis, but I've got weight gain as the active Cu- get oxidised. Does anyone...

01 March 2021 1,907 3 View

Why do a weight decrease for thermal degradation in nitrogen gas condition?

Hi all The question is related to TGA(Thermogravimetric analysis). Thermal degradation easily understood but why do samples weight decrease? altough just binding is broked, the weight of...

26 February 2021 1,100 5 View

Why would the TGA curve show weight gain?

Hello, I have several TGA curves of different compounds showing an odd weight gain/bump. The attached file is an example of some of these curves. I read oxidation can cause this if the purge gas...

21 January 2021 957 3 View

What is the reason of weight gain in TGA curve of a HDPE polymer sample ?

HDPE samples were aged at higher temperatures in the presence of water and CO2 than the TGA test was performed in Nitrogen? Weight gain is seen in the curve? What could be the possible reason for...

16 January 2021 5,644 2 View

How to analyse tga curve, when weight loss is not matching with constituents present in structure?

In TGA curve I am getting 2 step decomposition in which the 1st one coming around 185 to 195 degree centigrade. The weight loss calculated is not matching with the constituent present. Its a metal...

20 November 2020 714 5 View

What should I interpret from the following TGA curves?

I have coated my adsorbent with SiO2 layer using Stober's method. I have performed the TGA for both the samples and as you can see from the images attached, they are completely different. From...

31 October 2020 9,390 9 View

How can I analyze the TGA graph to get the weight percentage of organic matter?

Dear everyone, This is the first time I analyze TGA graph of my materials including protein and cooper phosphate crystals. And I would like to measure the weight percentage/ loading percentage of...

09 September 2020 1,062 3 View

How we can select Autoclave parameters based upon DSC analysis?

I have a DSC curve for the resol resin matrix attached with the file. The heating rate at DSC was about 10k/min. How do I choose the Autoclave parameters for curing of Glass fibre resol...

09 September 2020 4,732 5 View

Dear RG community, please could anyone help me determine if Kaolinite is present in the attached XRD, TGA...results?

My soil sample is an A-7-5 tropical red earth, classified as SC using USCS classification scheme. In the attached XRD results I couldn't find 7.2Angstrom peak for Kaolinite clay mineral, only...

26 August 2020 187 5 View

Does higher weight loss signifies lower combustion temperature?

Hi, i am working on solution combustion synthesis of Y3Al5O12 powders with different oxidizer to fuel ratio. I would like to know if higher weight loss signifies lower combustion temperature? And...

25 August 2020 847 3 View

Matthias Jaunich

Hello,

what about:

calculating the percentage in the numerator by:

mass lost divided by the Initial mass and multiplied by 100%

and

calculating the denominator by multiplying by the heating rate?

This should give you a reasonable result but please check this again.

regards

Thank you Mr. Höhne,

this is much more convenient.

Ashraf Muhammad

Sir Hohne, it is not working