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. 2018 Nov 13;8:16740. doi: 10.1038/s41598-018-34813-w

Figure 2.

Figure 2

The rate of mass loss percentage, −d(M(t)/M0)/dt, versus 1000/T for coumarin-6 source powder. T0 (≅175 °C) indicates a threshold of sublimation loss, and T1 (≅224 °C) is associated with the melting point for coumarin-6 powder. The inset demonstrates the TGA curve with a heating rate of dT/dt = 10 °C/min.