The Chemistry of Art > 1. Pigments in Painting > Early Uses of Pigments >
The early uses of pigments for Cave drawings, Self-decoration including cosmetics and Preparation of the dead for burial
Cave drawings:
- Naturally occurring pigments, sometimes mixed with saliva, were drawn directly on cave walls
- Common colours used were red, white, brown, yellow, black
- Ochre (reds and yellows) colours were due to iron (III) oxide in anhydrous or hydrated form
- Red = Fe2O3 (anhydrous)
- Yellow = Fe2O3. H2O (hydrated)
- Brown = FeO(OH) or Limonite
Self – decoration:
- Cinnabar and vermillion (HgS or mercury (II) sulfide) were used by the Romans as blush and lipstick
- Health risks of long term use include
- Highly toxic by ingestion, inhalation and skin contact
- Cumulative poison leads to CNS and kidney damage
Preparation of Dead/ Burial:
- Bodies in ancient Egypt were painted as they were in life
Example: Kohl (Mn02) used to line eyes
- Organs removed and replaced with fluid containing a mixture of resins
- Containers of cosmetics were often entombed with the body