Table 3 Extraction method, extraction pH, and final pH for brazilwood lake pigments, as well as L*, a*, b* color values for brazilwood lake paints of different colors applied on parchment
Color | Extraction method | Extraction pH | Final pH | Colorimetry | Source | ||
|---|---|---|---|---|---|---|---|
L* | a* | b* | |||||
Translucent rose | Egg white | 9.3 | 4.1 | 57.4 53.7 | 38.5 57.4 | 27.1 31.5 | Ms. Sloane 1754 V1 |
Egg white | 9.0 | 4.3 | 70.5 68.9 | 25.4 27.5 | 28.7 30.2 | Ms. Sloane 1754 V2 | |
Egg white | 9.0 | 5.3 | 76.5 34.9 | 17.3 47.3 | 6.1 13.6 | Ms. Illuminandi V2 | |
Egg white | 9.0 | 5.8 | 73.6 36.9 | 23.7 53.4 | 3.6 10.3 | Ms. Lebègue V20 | |
Egg white, gum Arabic, water | 8.4 | 4.9 | 75.3 41.7 | 20.3 49.9 | 5.7 3.9 | Ms. Montpellier V1.8.3 | |
Rose | Lye | 9.6 | 6.8 | 62.6 26.2 | 25.1 19.2 | 1.8 3.3 | Ms. Illuminandi V1 |
Vinegar | 2.6 | 4.8 | 44.3 20.1 | 35.8 18.2 | 0.9 3.8 | Ms. Alphabetum V1 | |
Egg white | 7.2 | 7.2 | 73.9 48.1 | 23.6 50.2 | 0.2 -7.4 | Ms. Strasbourg V1 | |
Red | Urine | 4.2 | 4 | 69.2 32.7 | 22.2 36.3 | 9.2 13.7 | Ms.Trésorier V1 |
Urine | 5.4 | 5.4 | 58.1 28.9 | 32.1 33.6 | 8.2 13.0 | Ms.Trésorier V3 | |
White wine | 3.0 | 2.7 | 69.5 40.5 | 18.4 35.7 | 7.7 5.9 | Ms. Lebègue V304 | |
Urine | 7.4 | 6.7 | 62.9 41.4 | 23.9 37.8 | 8.7 9.2 | Ms. Montpellier V1.8.2 | |
Lye | 10.6 | 5.7 | 31.0 17.9 | 25.8 13.6 | 4.7 4.6 | Ms. Strasbourg V2 | |