BMC Chemistry

Table 3 IR (Infra-Red) absorption data of standard black-ivory and black-vine samples.

From: Characterization of black pigment used in 30 BC fresco wall paint using instrumental methods and chemometry

Black-Ivory [cm^-1]	Attribution	Black Vine [cm^-1]
	M-O (FeO)	420
	M-O (FeO)	451
	M-O (FeO)	462
550	PO₄^3-
582	PO₄^3-
625	CO₃^2-	626
724	CO₃^2-	725
873	CO₃^2-
1018	CO₃^2-	1017
1107	CO₃^2-

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ISSN: 2661-801X

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