Dissolve 40g of Sodium Dichromate dihydrate (other receipe requested 60g ofSodium Dichromate dihydrate) in 130cc of water, and add 7.5 g of Lithium carbonate in small portions. When the bubbling of carbon dioxide has stopped, add 8g of Sodium Hydroxide and stir until it has dissolved. cover the solution and let it cool and stand. If it fails to deposit crystals spontaneously within a day, add seed s obtained by evaporating a drop of it. Notice like alum the substance is a double compound.
During the solution making process a glass mason jar broke from overheating the jar, a 250 ml beaker replaced it. The 60g Sodium dichromate dihydrate recipe did not provide crystals of good quality, so for our purposes -possible x-ray diffraction , we chose to use the above recipe with 40g of the same material.The crystals of this recipe did not grow as large as we wished, therefore seed crystal were formed, and we continued the experiment to produce samples ready for display and possible x-ray diffraction.
