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blogfast25
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And I'm fairly sure silver nitrate fetches a better price than silver phosphate, silver for silver...
[Edited on 28-10-2013 by blogfast25]
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Pyro
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all I want is about 50eur for the lot, that will cover my initial silver cost.
Woelen, If it is Ag3PO4 that has been made with the H3PO4 mist, it will contain HNO3. If I were to sell it I would purify it first.
3AgNO3+H3PO4->3HNO3+Ag3PO4
I will wash it and let you know how it smells then
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woelen
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Reality unfortunately is less clean than your reaction equation. I'm quite sure you will have stuff like Ag2HPO4, AgH2PO4 and coprecipitated AgNO3 in
the mix as well. I do not know the solubilities of these acidic phosphates.
The only usefulness of your lot is its silver content. For the rest it is an ill-defined mix and if someone purchased it, then that person needs to do
a lot of processing to release the silver from it. I personally would prefer either pure silver, or a soluble silver salt like AgNO3.
[Edited on 28-10-13 by woelen]
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Pyro
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Ah, damn it. I guess the only way is to make it into silver again.
Oh well, looks like I have to do some actual work 
thanks for the help
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blogfast25
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Quote: Originally posted by Pyro  | Ah, damn it. I guess the only way is to make it into silver again.
Oh well, looks like I have to do some actual work
thanks for the help |
Woelen's 100 % right Pyro: you can't expect to sell an 'accidental' product of uncertain composition; it's not fair on the buyer either.
Have some fun making a silver mirror, then redissolve as AgNO3. Making good quality AgNO3 I've been told is not as easy as it looks (even without P
fires to boot!)
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Pyro
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It's easy with a good dessicator
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AJKOER
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I suspect that the acid fumes from the fire reacted with CaCl2 releasing HCl. This reacted with your AgNO3 forming AgCl and releasing HNO3 (which you
still smell).
However, AgCl is very photo sensitive (see Wikipedia http://en.wikipedia.org/wiki/AgCl ) as is the phosphate (http://en.wikipedia.org/wiki/Silver_phosphate ). So, I do not believe you still have AgCl or any Ag3PO4 or other silver salt. In a very hot fire,
it is gone (Silver vaporized, gases like Cl2 formed).
What I suspect you now have is CaO with traces of Ca(NO3)2 (see http://en.wikipedia.org/wiki/Ca(NO3)2 ) containing HNO3 fumes as the latter calcium
salt is very hygroscopic.
I hope I am wrong.
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Pyro
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The Ag wasn't exposed directly to the fire. I boiled it with NaOH and hydroquinone for a good hour last week, all I got was a black sludge that didn't
react with HNO3. so I disposed of it.
but thanks for the effort!
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