50.0 MB (2.8 MB compressed)
3398 x 5139 pixels
28.7 x 43.4 cm ⏐ 11.3 x 17.1 in (300dpi)
TURTLE ROCK SCIENTIFIC / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY TURTLE ROCK SCIENTIFIC / SCIENCE SOURCE / SCIENCE PHOTO LIBRARY
Copper complex. When excess ammonia (NH4OH) is added to a solution of copper(II) sulfate (CuSO4) in water, a deep blue solution of tetraaminediaquacopper(II) complex ((Cu(NH3)4(H2O)2)2+) forms. Here 0.05M copper sulfate and 2M ammonia solutions were used.
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