NurdRage - 2012-10-27
We process the products of dissolving platinum in aqua regia to make chloroplatinic acid. First we reacted 31.1g of platinum with aqua regia as seen here: http://www.youtube.com/watch?v=APxL87X92t4 That solution contains unreacted nitric acid so we must destroy that. To do this we first reduce volume of the platinum containing solution by evaporating or boiling. Once it's down to less than 100mL and cooled to room temperature we add in 100mL of 15M hydrochloric acid. Then we boil the solution. The solution should be covered with an empty round bottom flask to prevent splashing out of the valuable platinum. As it boils the leftover nitric acid is reacted with the hydrochloric acid to produce nitrogen dioxide, nitrosyl chloride and chlorine gases. A yellow orange or brown gas coming from the solution indicates the reaction is occurring. We keep boiling until the solution is back down to 100mL and then allow to cool. If the gases were observed then another 100mL of hydrochloric acid should be added again and the boiling down repeated. This process should be performed as often as necessary until no gases are observed. Once all the traces of nitric acid are destroyed the solution is reduced down to ~ 50mL and allowed to dry. Since chloroplatinic acid is extremely hygroscopic I recommend using a desiccator bag or a vacuum desiccator to dry it. Eventually it will crystallize to an orange solid. Break it up and store it in air-tight containers away from light. You now have purified chloroplatinic acid hexahydrate.
Thanks for the upload. I really enjoy thse videos while they have all sorts of extra info about adjacent topics.
Have a good one!
Jeff
Hey, I love it everytime NurdRage posts a new video, so yer not alone!
Well thank you NurdRage, you distracting me from my chemistry revision >_<
An informative and entertaining video as always. Thanks!
Nurdrage, your videos are always great. Thank you for sharing.
Since you're working with platinum, I think it would be cool to see some of its catalyzing properties. Like turning methyl alcohol vapors into formaldehyde. Love your channel.
what is the black compound at the end (after the picture of the final hexachloroplatinic acid)?
Hi NurdRage, just so you know I've been watching most of your vids for quite some time it's because I'm into Chemical reactions just like watching a magic show. Btw I'm a Geek and a gamer but not a Science nerd.
I personally enjoyed your vedio very much and you had done a great work up hear showing us such an awesome treatment
It would be great if you could post a video of chloroplatanic acid process in the vaccum deccicator.
And i would like to know how much time would we needs the chemical to be crystaline by using a vaccum dessicator
We so much miss you great work!
The pure stuff!
It's k, it's awesome when a complete stranger tries to help
How can i get rid of nitric acid ?
Do you have another recommendation ?
aqua regia = nitric asid ( 1 scale ) + HCI (10 scale )
hi? thanks for video...
one question...how long to dry in the desiccator? and change the color and volume?
thank you!
I can also give you advice, I've work in the lab for the past 2 years. Lab Work is all about planning ahead. Write every single detail in a paper, make sure is right, and follow your plan. Good luck!
please upload the other compound data/synthesis, platinum group metal chemistry doesn't have enough videos/data online
That's a really beautiful solution, so many colours
This platinum video series is very very interesting. If you could take a few moments though in each vid to explain more about say, the reaction going on, or the properties or uses of the compound you're producing, it'd be even better.
Now that i'm taking chemistry in my sophomore year i'm starting to understand what he's talking about :P
The H2PtCl6 * 6H2O in my lab is contaminated by water from the air, can I dry it in the vacuum desiccator(a vacuum oven with heat turned off in fact) while keeping the '"6H2O" in this compound ?
Can you please make a video of you dissolving this chloroauric compound in mercury?
Hi @NurdRage, I made chloroplatinic acid in order to obtain Platinum(II)Diammine Dinitrite (DNP salt). Following the procedure on Brauer's Hanbook of Preparative Inorganic Chemistry, I precipitated hexachloroplatinic acid with KCl, washed it, then I made it react with a slight excess of sodium nitrite to obtain potassium tetranitroplatinate (K2Pt(No2)4) and precipitated it with a stoichiometric amount of NH3 (using a 20% aq solution). After washing it, it shoud be soluble in aqueos ammonia but it isn't. What do you think I miss?
Thank you
It's a platinic relationship.
The Lightning Stalker I... just, I'm not even mad. Thank you.
The Lightning Stalker are you still alive
The reports of my death have been greatly exaggerated.
great performance. really would like to talk about your alchemy. think we can help each other
make and use some Mercury(II) fulminate that would be pretty cool
Hey, Nurdrage! Can I ask for some advice? I'm in my second year studying chemistry, and while I do good on theoretical stuff, I find myself weak in the lab, although I love it. The problem is that in the classes I focus so much on not making mistakes that I don't really learn anything, but lab work is not you can practice on your own because it's.. you know... lab! I can't do it at home! Any suggestions?
Still really want to see what future reactions you use that Chloroplatinic Acid for!
that was awesome. thanks!
Wait, you didn't crush out expecations this time :o
When doing reactions like this that produce NO2 as a by product, can you pass the NO2 through H2O2 to create Nitric acid as an added bonus? I am thinking of your nitric acid video with copper, sulfuric acid and a nitrate salt in the vacuum flask with the tube running out.
even though i dont understand any of this, is still feel like im learning something. :D
This was fun now I have have nifty things to show to my friends
I have yet to be in a chemistry class at my school, but all of your videos are really interesting Nurd.
This is the kind of stuff teachers should show in high school it actually brings everything together.
Impressive, as always.
Thanks for warning me. That was a close call!
3:31 was the best part!
I love it when your videos start with a warning.
totally reversible, you can either use a more reactive metal like copper or aluminum or the same process he explained in his chloroauric acid reduction video where he dripped sodium metabisulfite into the solution to precipitated the gold out of solution.
Hey @NurdRage, if it ain't a problem, could you help me with a chem reaction? Need it for school, and my notebook is at my friend's, tried googling it, got no helpful results. Here's the reaction C4H9Cl dissolving( i think it's dissolving because it's on top of the --> arrow thingy) in NaOH. C4H9Cl is given in it's structure formula ( english ain't my main language, so i don't know how to phrase it differently..) if it means anything special :P . Thanks a bunch
How do we apply these platinum compounds?
Good day. What is your recommended temperature for dissolution and what for evaporation? thank you very much
thanks! I do plan ahead, but what I'm worried about is gaining skills...
hey, where do you get or what program u used to label your vails?
I appreciate your use of closed captions as I cannot use the sound while I'm at work :)
Is the stuff you made more valuable than the platinum you made it from?
After all that I was relatively certain this was a rick roll.
Never going to give you up, never going to let you down.
He is like a real life alchemist, changes one substance into another.
salvador2413 - 2012-11-25
Thank you NurdRage! Today was my first day of being exposed to your videos, and i am impressed. I have always been so intrigued with Chemistry but unfortunately I followed the path of psychology. You've taught me way more than any of my chemistry teacher I've had. You have profound knowledge of your field and I have great respect for you! Also, what a great way to give back your knowledge to society! By the way...your voice over rocks!...Evil chemist for the win! :)