Figure 4 | Scientific Reports

Figure 4

From: Stability of copper acetate at high P-T and the role of organic acids and CO2 in metallic mineralization

Figure 4

Laser Raman spectra of the vapour and solution. (a) The C-H symmetry stretching vibration is obvious (2945.6), illustrating the copper acetate still exist. The two peaks can be observed (1382.9 and 1410.9), is the peak of CO2 and C=O of Cu(Ac)2, respectively. (b–e) The C-H symmetry stretching vibration is unobvious or vanishing, illustrating the copper acetate does not exist almost. The unique peak can be observed (1383.6, 1389.1, 1388.6 and 1389.2), showing the peak of CO2 (PeakFit V4.12, https://peakfit.updatestar.com).

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