My project requires me to determine the amount of residual palladium (Pd) left in solution. I plan to do this using a colormetric assay, using stannous chloride (SnCl2) to detect the amount of palladium.
At the moment I am having issues preparing the SnCl2 solution, as the powder will not dissolve in the solution (2M HCl) after mixing at room temperature.
I have dissolved 29.9 g SnCl2 in 500 ml 2M HCl
SnCl2 can be purchased. It can be dissolved in Dimethylether of DPG.
Or you can make it by yourself from Tin Ingots or Tin Powder by dissolving these in conc. HCL aqueous solution, with a bit of conc. HNO3 added, with the formation of H2, what is sent to a vent with dry N2.
Perhaps of some interest for your query: https://www.researchgate.net/post/SnCl22H2O_is_not_dissolving_in_cold_and_hot_water_Solution_becomes_turbid_after_some_time_Please_suggest_how_to_remove_turbidity
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