Has anyone tried this? Aluminum Oxide

[cashr23523]

I was reading up on some ways to dispose of Copper Chloride on the forum. If I add aluminum to my copper chloride solution that should drop the copper out and leave me with Aluminum Chloride correct? So that is a good way to retrieve your copper. I saw this on Wikipedia.

2 AlCl3 + 3 H2O → Al2O3 + 6 HCl

According to the article after heating the solution to 300 degrees celcius it creates aluminum oxide and HCL. Looks like a good way to retieve some HCL if it works safely.

I've always thought it is best to stay away from oxides especially in a gaseous form but aluminum xide appears to be inert and, unreactive and un hazardous according to the article. So has anyone tried this or are there some potential hazards that I am not aware of?

 

[goldsilverpro]

I was reading up on some ways to dispose of Copper Chloride on the forum. If I add aluminum to my copper chloride solution that should drop the copper out and leave me with Aluminum Chloride correct? So that is a good way to retrieve your copper. I saw this on Wikipedia.

2 AlCl3 + 3 H2O → Al2O3 + 6 HCl

According to the article after heating the solution to 300 degrees celcius it creates aluminum oxide and HCL. Looks like a good way to retieve some HCL if it works safely.

I've always thought it is best to stay away from oxides especially in a gaseous form but aluminum xide appears to be inert and, unreactive and un hazardous according to the article. So has anyone tried this or are there some potential hazards that I am not aware of?

How are you going the heat that solution to 572F ?

 

[cashr23523]

I personally dont have the equioment but I thought there was some hotplates that heated up that high.

 

[skippy]

You need serious pressure to get a solution that hot!

 

[goldsilverpro]

It's the solution and not the hotplate. The solution's temperature can't exceed it's boiling point, unless under pressure. The BP of water is 212 F. This solution would be somewhere in this ballpark.

 

[cashr23523]

<akes sense. Thanks for clearing that up.

 

[Sucho]

It's the solution and not the hotplate. The solution's temperature can't exceed it's boiling point, unless under pressure. The BP of water is 212 F. This solution would be somewhere in this ballpark.

you are right GSP..there are some effect that causes increasing boiling point of a solution, but in a very small scale.(e.g. ebulioscopic increasing of boiling point, kryoscopic decreasing of freezing point etc.)
in your scale you need large increase of pressure..
if you want to learn more, check Gibbs energy, Rault law, Henry law etc.

 

[turtlesteve]

In my opinion this will be completely unworkable. The Al2O3 will precipitate as Gibbsite or Boehmite, which forms a thick jelly-like sludge, not a clean powder. Moreover, this will start to occur as the excess acid in the solution is neutralized, and will complicate separation of the precipitated copper.

Steve