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Figure 4
Microspectroscopy FTIR (125 scans, 4 cm−1 resolution) of the green chromatic layer, where Cu2Cl(OH)3 (structure of paratacamite) bands at 3444, 3355, 3335, 997, 947, 920, 897, 847 and 830 cm–1 are determined. The bands at 2954, 2920, 2850, 1650, 15409, 1465 and 1240 cm–1 correspond exactly with bands found in the spectrum obtained after two years of ageing of egg yoke.

Journal logoJOURNAL OF
SYNCHROTRON
RADIATION
ISSN: 1600-5775
Volume 9| Part 4| June 2002| Pages 215-222
doi:10.1107/S0909049502007859
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