Table 2 Radiocarbon measurements of modern lead white pigments prepared according to different production processes.
From: Unexpected presence of 14C in inorganic pigment for an absolute dating of paintings
Sample | Pigment/Composition | Production mode | Fermentation environment | Date of production | pMC | Radiocarbon date (calAD) | Lab ref N° |
|---|---|---|---|---|---|---|---|
LW(YS) | Lead white Cerussite | Corrosion | Yeast and sugar | 2015 | 102,03 ± 0,22 | 1955–1956 (22.6%) 2013–2016 (77.4%) | SacA52822 |
LW(HM)-2 | Lead white Cerussite + Hydrocerussite | Corrosion | Horse manure | 2016 | 101,70 ± 0,30 | 1955–1956 (28.2%) 2013–2016 (71.8%) | SacA51770 |
LW(I) | Lead carbonates | Industrial | No | ≈2000–2010 | 6.44 ± 0.14 | 22030 ± 180 | Sac 47186 |
LW(Min) | Cerussite | Natural mineral | No | - | 0.70 ± 0.04 | 39840 ± 490 | SacA49227 |
