After you added the HCL acid to the solution you made basic with lye, where you precipitated the hydroxides, unless you you took the ph back down below neutral to acidic again, you just neutralized the solution and made salt water with the precipitated hydroxides suspended in it. If you would have waited and let it sit, they should have settled and the liquid would be clear. But it seems you did bring the pH down below 7 which is why it turned orange. When you had the orange solution you could have used a bit of ammonium thiocyanate to test for the presence of iron 2 & 3 ions in solution. You could also have used dimethylglyoxime to test for the presence of nickel. And actually before you raised the pH, when the metal was initially dissolved into the HCL acid, you could have taken a portion of the solution to play around with and test separately. You could do a single displacement reaction and use a metal lower than the suspected metals in solution for the displacement reaction. For example put a strip of magnesium in the solution and all the suspected metals that as less reactive than magnesium (according to the reactivity series of metals) should precipitate/ cement out in their metallic form leaving you with just magnesium in solution (unless there is some other unknown metal that is more reactive than magnesium already dissolved in that solution that you were unaware of, that would stay in there). But what I would do if it is suspected that there is aluminum, nickel and iron, you could put excess Iron in the solution (iron bar) for it to precipitate all the dissolved nickel out. After you wait long enough, take out the iron bar, filter and separate the liquid from the precipitate (which should be nickel) then proceed to put in a magnesium strip to precipitate the aluminum and iron. After that cementation process is complete, you should have magnesium in solution and aluminum and iron precipitated. Separate and filter the powder from the liquid and dry it off. Let the resulting powders dry and contact oxygen in the air so that the aluminum will form oxides (that will happen instantly). You could try to do a flame test on the powder and look at the colors to vertify iron and aluminum presence but it would be better to separate them and burn them in which case I would then add those two powders to nitric acid. That should dissolve the iron but not the aluminum oxide. Which you could filter out and flame test. Now this whole process won’t tell you each and every single metal component that was originally in the initial metal, but you could at least verify if the three suspected metals you thought were present are actually in there or not.
i believe some aircraft alloys have aluminum, but i also believe those alloys have few other uses and would also contain some amount of titanium or tungsten. i will also say that i am definitely not an expert and could be wrong on any part of this, kinda curious as well honestly.
Interesting, thank you for your comment. I don’t really know too much about this either. Id imagine tungsten would be a bit infeasible to use even in small weight proportions for aircraft alloys because of its cost, but I might be wrong … maybe I’ll make a video about this lol
I think titanium is more prevalent, and either way I believe you are correct on the small proportions. Honestly a video working with titanium would be awesome, seems like an ignored metal on most channels I've seen.
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After you added the HCL acid to the solution you made basic with lye, where you precipitated the hydroxides, unless you you took the ph back down below neutral to acidic again, you just neutralized the solution and made salt water with the precipitated hydroxides suspended in it. If you would have waited and let it sit, they should have settled and the liquid would be clear. But it seems you did bring the pH down below 7 which is why it turned orange. When you had the orange solution you could have used a bit of ammonium thiocyanate to test for the presence of iron 2 & 3 ions in solution. You could also have used dimethylglyoxime to test for the presence of nickel. And actually before you raised the pH, when the metal was initially dissolved into the HCL acid, you could have taken a portion of the solution to play around with and test separately. You could do a single displacement reaction and use a metal lower than the suspected metals in solution for the displacement reaction. For example put a strip of magnesium in the solution and all the suspected metals that as less reactive than magnesium (according to the reactivity series of metals) should precipitate/ cement out in their metallic form leaving you with just magnesium in solution (unless there is some other unknown metal that is more reactive than magnesium already dissolved in that solution that you were unaware of, that would stay in there).
But what I would do if it is suspected that there is aluminum, nickel and iron, you could put excess Iron in the solution (iron bar) for it to precipitate all the dissolved nickel out. After you wait long enough, take out the iron bar, filter and separate the liquid from the precipitate (which should be nickel) then proceed to put in a magnesium strip to precipitate the aluminum and iron. After that cementation process is complete, you should have magnesium in solution and aluminum and iron precipitated. Separate and filter the powder from the liquid and dry it off. Let the resulting powders dry and contact oxygen in the air so that the aluminum will form oxides (that will happen instantly). You could try to do a flame test on the powder and look at the colors to vertify iron and aluminum presence but it would be better to separate them and burn them in which case I would then add those two powders to nitric acid. That should dissolve the iron but not the aluminum oxide. Which you could filter out and flame test. Now this whole process won’t tell you each and every single metal component that was originally in the initial metal, but you could at least verify if the three suspected metals you thought were present are actually in there or not.
i believe some aircraft alloys have aluminum, but i also believe those alloys have few other uses and would also contain some amount of titanium or tungsten. i will also say that i am definitely not an expert and could be wrong on any part of this, kinda curious as well honestly.
Interesting, thank you for your comment. I don’t really know too much about this either. Id imagine tungsten would be a bit infeasible to use even in small weight proportions for aircraft alloys because of its cost, but I might be wrong … maybe I’ll make a video about this lol
I think titanium is more prevalent, and either way I believe you are correct on the small proportions. Honestly a video working with titanium would be awesome, seems like an ignored metal on most channels I've seen.
NileRed from BestBuy🤣