Fig. 2: Optical microscopy and SR-µ-XRPD mapping of newly formed lead-based crystalline phases in PaDry medium after 60 days and three years.
From: Early formation and detection of lead-based products from PbO-oil paint systems
A Optical microscopy images acquired on a fresh PaDry paint drop inside a concave depression glass slide, cured for 60 days at room temperature conditions. Tracking of paint curing over the period of first four days is shown in SI (Movie S1.); B SR-µ-XRPD distribution map of LF in three years old sample (map size: 1592 × 1194 µm2, step size: 2 × 2 µm2, the map location is represented by the turquoise rectangle in A), t = 60 d. Extracted average SR-µ-XRPD patterns of LF are given in Fig. S4A, lead stearate in Fig. S4B and of a mixed lead soap/carboxylate (palmitate and stearate) in Fig. S4C.
