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Heritage Science
Fig. 3 | Heritage Science

Fig. 3

From: Hidden in plain sight: revisiting the synthesis, characterisation, degradation and the intricate relationship between Scheele’s green and Emerald green

Fig. 3

Raman (top) and FTIR (bottom) spectra of the copper arsenite green pigments synthesised, A Emerald Green, Gmelin,1965, from Scott [7], B1 Trippkeite, particle 1, Pertlik [8] in 1M acetic acid, B2 Trippkeite, particle 2, Pertlik [8] in 1M acetic acid, C Trippkeite, Pertlik [8] in water, D1 Method #11, Sharples [5], D2 Method #10, Sharples [5], D3 Method #11 modified with sodium arsenite, Sharples [5], E Scheele’s, Riffault et al. [43], G Scheele’s, Saxena and Bhatnagar [11] and H Scheele’s, Parker [9]. Y-axis for Raman has arbitrary units and absorbance for FTIR

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