Red lead production. 19th-century artwork showing workers in China producing red lead. This form of lead oxide,also called triplumbic tetroxide,is prepared by calcination of lead (II) oxide. It is used as a pigment on manuscripts and in paintings. This is the completion of the stage involving pounding of the powder. This artwork is an opaque watercolour. It dates from circa 1820 | |
Lizenzart: | Lizenzpflichtig |
Credit: | Science Photo Library / British Library |
Bildgröße: | 4923 px × 3921 px |
Modell-Rechte: | nicht erforderlich |
Eigentums-Rechte: | nicht erforderlich |
Restrictions: | - |