Table 1 Composition of Egyptian blue trials
From: Assessment of process variability and color in synthesized and ancient Egyptian blue pigments
SAMPLE | Heat treat (hours @1000 °C) | SiO2 | CaCO3 | CaO | CuO | Cu3(CO3)2(OH)2 | Cu₂CO₃(OH)₂ | Na2CO3 |
|---|---|---|---|---|---|---|---|---|
Cuprorivaite | N/A | 66.6 | 16.7 | 16.7 | ||||
LC1 | 11 (1 + 10) | 74.7 | 11.2 | 14.1 | ||||
LC2 | 11 (1 + 10) | 76.5 | 7.0 | 12.8 | 3.6 | |||
LC3 | 11 (1 + 10) | 66.2 | 7.3 | 22.9 | 3.7 | |||
LC4 | 11 (1 + 10) | 68.6 | 18.4 | 13.0 | ||||
A1 | 11 (1 + 10) | 83.8 | 12.6 | 3.7 | ||||
AR1, AR3 | 10 | 83.8 | 12.6 | 3.7 | ||||
A2 | 10 | 83.9 | 8.4 | 3.7 | 4.0 | |||
AR2, AR4 | 10 | 83.9 | 8.4 | 3.7 | 4.0 | |||
M1 | 1 | 82.1 | 12.3 | 5.6 | ||||
MR1, MR4 | 10 | 82.1 | 12.3 | 5.6 | ||||
M2 | 1 | 83.4 | 7.7 | 5.0 | 3.9 | |||
MR2, MR3 | 10 | 82.3 | 8.2 | 5.6 | 3.8 |
