Page 448 - Copper and Bronze in Art: Corrosion, Colorants, Getty Museum Conservation, By David Scott

TABLE 9 X-RAY DIFFRACTION DATA FOR SOME NEUTRAL
AND BASIC COPPER FORMATES

I. NEUTRAL COPPER FORMATES

Cu(HCOO ) 2 -2H 2 0 Cu(HCO( Cu(HCO( Cu(HCO(
» 2 Cu(HCOO ) 2 3)2 Cu(HCOO ) 2
(ICDD 16 •954) (ICDD 1/ 1-804) (ICDD Τ1-708) (ICDD 32 -331) (ICDD 3 2-332) (ICDD 46 -867)
d-sp 1 d-sp 1 d-sp 1 d-sp 1 d-sp 1 d-sp 1

4.88 100 7.08 100 4.9 100 5.24 100 7.09 50 5.21 100
4.68 65 5.23 10 4.6 70 3.969 2 5.56 70 4.8 88
4.56 85 4.54 30 4.29 45 3.444 3 4.81 100 3.468 37
4.31 10 3.01 10 3.6 12 3.348 4 4.47 40 3.229 36
4.22 4 2.86 30 3.39 12 3.282 10 4.15 2 3.065 43
3.63 10 2.68 40 2.84 18 3.184 2 3.79 5 2.877 28
3.56 10 2.59 10 2.61 70 3.063 25 3.64 2 2.482 29
3.51 6 2.39 15 2.44 12 2.8553 6 3.546 50 2.34 34
3.41 20 2.36 10 2.2 12 2.6688 2 3.519 7 2.075 32
3.33 18 2.27 10 2.12 6 2.5579 20 3.474 50 2.06 31
3.28 4 2.14 10 2.02 6 2.5061 6 3.299 60
3.14 6 2.1 25 1.95 12 2.4894 10 3.235 30
3.05 8 1.81 10 1.81 12 2.4212 8 2.884 20
2.836 20 1.59 10 1.75 12 2.275 2 2.781 8
2.622 40 1.44 10 1.64 6 2.2254 7 2.748 10
2.6 20 1.27 10 1.53 6 2.1994 2 2.718 3
2.559 6 2.1324 7 2.643 6
2.439 10 2.1002 3 2.555 4
2.341 6 2.0741 5 2.538 6
2.303 6 2.046 1 2.517 4
2.281 6 1.996 7 2.484 25
2.239 6 1.9815 < 1 2.366 4
2.208 18 1.905 7 2.339 40
2.128 6 1.8681 2 2.288 5
2.081 6 1.861 8 2.249 2
2.02 6 1.8175 < 1 2.144 1
1.955 10 1.799 12 2.081 20
1.905 6 1.765 < 1 2.073 8
1.874 4 1.7406 5 2.06 10
1.848 6 1.7208 5 1.983 2
1.819 10 1.7039 3 1.922 3
1.757 8 1.6822 5 1.886 6
1.73 6 1.6695 2 1.867 1
Key continued
d-sp d-spacing
I intensity