Fig. 7
PXRD patterns of ZnO in linseed oil (B/P = 30) after treatment in Weather-O-Meter for: (a) 500 h with 40% (v/v) 13CO2(g) and RH = 70–80%; (b) 300 h and RH = 80% measured from the top side; and (c) measured from the bottom side. Legend: asterisk = ZnO; open circle = ZnC2O4·2H2O; open diamond = ZnC2O4; black down triangle = Zn4(CO3)(OH)6·H2O