Urgent help, waiting online: How to determine the palladium content in palladium chloride?
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This post was last edited by Guanzhong Caizi on 2010-11-1 21:23. As I have to work with this substance, I would like to know how to determine the palladium content in palladium chloride. I hope those who have experience in testing can provide some guidance; thank you :victory:. By the way, I also want to ask everyone: can Pd be converted into palladium oxide when heated in air? ? If possible, what temperature is needed? First, thanks to everyone who came by to take a look :hug:. It’s for work purposes – I need it by tomorrow; anyone who knows how to handle this could please give some advice {:1_90:}
Pd must be heated to 800°C to be oxidized. Its nature is relatively stable. Since it is the one with the lowest melting point among the platinum group metals, yet it also possesses high stability, it is now used as an investment precious metal. Its compounds dissolve in aqua regia. As for testing for palladium chloride, I don’t know either. Those who know, please share!
It is best to use atomic absorption spectroscopy for determination, as it offers high accuracy and is simple and convenient. Alternatively, the oxime weight method using butanedinitrile can also be tried (it has also been traditionally used as a standard method for determining palladium), but its drawback is that it is time-consuming and complex. There are also EDTA complexometric titration, spectrophotometry, etc.
I think the detection of these heavy metals is done using atomic absorption or ICP
For pure palladium chloride, testing is carried out in accordance with national standards (which can be found on Jiujiu). If the concentration is low, there are many methods available to be found on Sina Ask. http://ishare.iask.sina.com.cn/search.php?key=%EE%D9%BA%CF%BD%F0%D6%D0%EE%D9%B2%E2%B6%A8&from=file&format=
This post was last edited by Master WuXiang on 2012-8-9 at 16:16. It’s understandable, but lies should be avoided. Well done! Well done!