30.2 MB (2.3 MB compressed)
3971 x 2657 pixels
33.5 x 22.6 cm ⏐ 13.2 x 8.9 in (300dpi)
TREVOR CLIFFORD PHOTOGRAPHY / SCIENCE PHOTO LIBRARY TREVOR CLIFFORD PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Preparing copper sulphate solution. Student preparing a standard solution of copper sulphate (CuSO4). Here, he his mixing a measured amount of copper sulphate crystals with water to make the solution.
Model release not required. Property release not required.