Page 469 - Copper and Bronze in Art: Corrosion, Colorants, Getty Museum Conservation, By David Scott

TABLE 26 X-RAY DIFFRACTION DATA FOR SOME COPPER ARSENITE PIGMENTS
(EMERALD GREEN)

SCHWEINFURT GREEN COPPER COPPER COPPER
+ CuO ACETATE-ARSENITE ACETATE-ARSENITE ACETATE-ARSENITE
As 2 0 3
Dilute CH3COOH C 4 H 6 As 6 Cu 4 0 16 (ICDD 31-448) (ICDD 31-448)
(ICDD 1-51) continued

d-spacing Intensity d-spacing Intensity d-spacing Intensity d-spacing Intensity
10.5 100 10.0 100 9.71 100 2.63 9
9.21 100 6.76 25 2.62 40
6.67 10 5.36 5 2.58 20
4.68 50 4.86 9 2.55 35
4.48 50 4.55 12 4.70 11 2.49 25
3.91 50 3.99 12 4.53 100 2.48 2
3.46 50 3.48 8 3.93 95 2.46 9
3.35 30 3.71 5 2.43 5
3.27 30 3.30 4 3.48 80 2.41 60
3.04 70 3.06 20 3.38 55 2.38 12
2.667 80 2.68 24 3.28 70 2.36 6
2.403 20 2.40 4 3.18 8 2.31 7
2.254 10 3.09 45 2.26 14
1.772 5 3.07 60 2.25 65
1.698 10 1.69 8 3.06 80 2.18 17
1.623 10 1.62 4 2.98 10 2.15 5
1.566 10 1.55 8 2.73 55 2.12 10
1.457 10 1.45 4 2.71 80 2.11 16
2.69 19 2.07 12
2.68 100 2.00 16
2.67 20

A P P E N D I X D
452