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| What is this metal? |
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| Refrigerator:
--- Quote from: JohnnyMalaria on May 05, 2021, 06:57:31 pm --- --- Quote from: Refrigerator on May 05, 2021, 06:42:22 pm ---I put a piece of the metal on an old blade, gave it a bunch of heat with my butane burner and only when it got super hot did i see the slightest lick greenish/lime/cyan colour. So it's between zinc and antimony. --- End quote --- Make sure you run the control experiment with just the old blade :) --- End quote --- I did after and the greenish flame is coming from the mystery metal. I also torched the white crystals and they turned a quite ugly yellow, some barely green-ish flame could be seen when burning the stuff. I found some sodium hydroxide so i mixed up some in a test tube and it seems to react with the metal, so it seems that the mystery metal might in fact be zinc. |
| Refrigerator:
--- Quote from: drussell on May 05, 2021, 07:16:58 pm --- --- Quote from: JohnnyMalaria on May 05, 2021, 06:57:31 pm --- --- Quote from: Refrigerator on May 05, 2021, 06:42:22 pm ---I put a piece of the metal on an old blade, gave it a bunch of heat with my butane burner and only when it got super hot did i see the slightest lick greenish/lime/cyan colour. So it's between zinc and antimony. --- End quote --- Make sure you run the control experiment with just the old blade :) --- End quote --- Haha, I was just thinking the same thing. :) The look and SG of antimony and zinc are pretty close (what, 6.75 vs. 7?), but my personal guess is zinc. :popcorn: --- End quote --- Yeah internet said antimony does not react with dilute sulphuric acid so it has to be zinc. Feels a bit unusual finding just a chunk like that laying around. |
| T3sl4co1l:
Suppose it could be a sheared/broken chunk of zinc anode. Think those usually have a bit of aluminum in them for strength or something, but maybe it happened to be pure. Solidification shouldn't be too directional or slow, they're just cast in steel molds I would guess. Maybe if it's a fragment of a much larger piece, it would do. *shrug* Anyway, if zinc be the base then, have fun, you can melt that with a bit of aluminum and even less copper to make zamak I guess? :P Make a smaller anode? Do some electroplating? (Needs some additives besides just the salt and acid.) Tim |
| Refrigerator:
--- Quote from: T3sl4co1l on May 05, 2021, 08:06:25 pm ---Suppose it could be a sheared/broken chunk of zinc anode. Think those usually have a bit of aluminum in them for strength or something, but maybe it happened to be pure. Solidification shouldn't be too directional or slow, they're just cast in steel molds I would guess. Maybe if it's a fragment of a much larger piece, it would do. *shrug* Anyway, if zinc be the base then, have fun, you can melt that with a bit of aluminum and even less copper to make zamak I guess? :P Make a smaller anode? Do some electroplating? (Needs some additives besides just the salt and acid.) Tim --- End quote --- I remember taking old batteries apart for the zinc but i can't remember what i needed the zinc for. Anyways i might eventually find a use for it i think electroplating might be interesting, also tin and zinc alloy can be used for aluminum soldering. |
| JohnnyMalaria:
Find some unwanted copper, a can of Coke and make a battery :) https://scitoys.com/scitoys/scitoys/echem/batteries/batteries.html |
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