Can you Please help me in interpretting this DSC graph?

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Omar M S

There is no diagram

Santosh M. Bobade

I think, there is nothing more than loss of mass in your spectrum. you try to identify the product of etching. How Cu react with etchant? This will give you idea about the product that can form on the surface of plate. In addition, there may be loss of hydrate as well. try to map this way.