The synthetic method of tetraammine palladium sulfate
A tetraammine palladium sulfate and synthesis method technology, applied in chemical instruments and methods, ruthenium/rhodium/palladium/osmium/iridium/platinum compounds, inorganic chemistry, etc., can solve the difficult reaction, difficult to clean, difficult to separate and other problems, to achieve the effect of high reaction yield, high product purity and simple operation
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Embodiment 1
[0025] The synthetic method of tetraammine palladium sulfuric acid, weigh 10.00g (94.0mmol) palladium powder with beaker, add 200mL aqua regia in batches, cover watch glass and let palladium powder dissolve at 115 ℃ for 1h, then take Continue heating and add 10mL of hydrochloric acid with a mass fraction of 37% dropwise to facilitate the escape of nitrogen oxides. During the heating process, the liquid level is maintained at 20mL (the purpose of maintaining the liquid level is to prevent the palladium compound from being precipitated and then oxidized into Palladium oxide), if the liquid level drops, then add pure water to keep the solution volume constant), until no more yellow-brown gas escapes in the beaker, stop heating, and finish nitrating; after nitrating is completed, boil the solution volume to 10mL, Add 20mL of 30%wt sodium hydroxide solution, stir evenly; use a sand core funnel to suction filter, and wash the filter residue several times with pure water, recover the ...
Embodiment 2
[0029] Weigh 150.00 (1409.6mmol) palladium powder into a 1000mL beaker, add 500mL aqua regia in batches, cover the watch glass and heat at 130°C for 0.5h to dissolve the palladium powder, then take off the watch glass and continue heating and add dropwise from time to time Mass fraction is 10mL of hydrochloric acid of 37% to be beneficial to the escape of nitrogen oxides (during the heating process, the liquid level remains on 200mL, and keeping the liquid level is to prevent the palladium compound from being precipitated and then oxidized into palladium oxide). Add pure water to keep the volume of the solution constant, if the liquid level drops, add pure water to keep the volume of the solution constant), until no more yellow-brown gas escapes in the beaker, stop heating, and finish nitrating; The volume of the solution was boiled to 100mL, and 200mL of 30%wt sodium hydroxide solution was added, and stirred evenly; the filter residue was washed several times with pure water, ...
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