Table 2 GAB constants obtained from the fit of water vapour sorption isotherms to the experimental data
From: Mechanical and moisture-related properties of selected dried tempera paints
Vm | c | k | R2 | |
|---|---|---|---|---|
Pigments | ||||
Yellow ochre | 0.70 (0.04) | 16.2 (3.4) | 0.81 (0.03) | 0.978 |
Azurite | 0.152 (0.01) | 15.2 (3.8) | 0.81 (0.03) | 0.97 |
Hydrocerussite | 0.028 (0.009) | 8.3 (5) | 0.67 (0.17) | 0.89 |
Cerussite | 0.024 (0.001) | 5.1 (1.9) | 1 (fixed) | 0.96 |
Binder | ||||
Rabbit skin glue adsorption | 3.44 (0.06) | 3.7 (1.6) | 0.96 (0.04) | 0.99 |
Egg yolk | ||||
Adsorption | 2.75 (0.13) | 2.95 (0.3) | 0.96 (0.01) | 0.99 |
Desorption | 2.78 (0.13) | 75 (55) | 0.99 (0.02) | 0.99 |
Egg tempera | ||||
Yellow ochre | 0.74 (0.08) | 13.6 (4.1) | 0.73 (0.06) | 0.94 |
Azurite | 0.25 (0.03) | 17.3 (5.2) | 0.71 (0.06) | 0.95 |
Hydrocerussite | 0.21 (0.01) | 7.4 (0.6) | 0.85 (0.01) | 1.00 |
Cerussite | 0.25 (0.01) | 12.1 (0.7) | 0.81 (0.01) | 1.00 |
Distemper | ||||
Azurite | 0.25 (0.02) | 17.9 (5.2) | 0.88 (0.03) | 0.97 |