Later, additional reactants are injected into the solution to induce precipitation of the materials of interest. A 3-dimensional representation of the diffraction patterns obtained during the precipitation. As the X-ray absorption increases significantly when the precipitation takes place, the diagrams have been scaled using background counts in order to be able to compare them. In the figure the precipitation is clearly visible as diffraction peaks from BaSO 4 appear. Time resolved x-ray diffraction spectra of the formation of pyrite and subsequent transition to hematite.
Solution is exhausted through the port on the left-hand side.
The authors are grateful for assistance both at the beamline and with data reduction from Jon Hanson of BNL chemistry. The work at the APS was made possible by the generous help of J. Pluth, N. Lazars, G. Shen, Y. Wang, P. Eng, M. Rivers and S. Sutton. In 1989 however, Bedard proposed a new family of such matrials based on sulfide chemistry. This is the largest known cluster in the main group metal-sulfide system. 10- clusters is realized via hydrothermal treatment of elemental In and elemental S in the presence of dimethylamine.