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>Though technically, the salt does not melt the ice, its dark color attracts heat, allowing the ice below it to melt, which than allows the salt to mix with the
by johnnyApplePRNG 4y ago
>Though technically, the salt does not melt the ice, its dark color attracts heat, allowing the ice below it to melt, which than allows the salt to mix with the water. And it does not refreeze because the salt dramatically lowers the freezing point of the water.
And this is why your northern car is covered in rust after a few years on the road... you're literally driving through liquid brine for a good 25% of the year.
I am surprised I have any car left to rust thinking of it that way.
- newyankee 4y agoCan rusted parts be recycled by reversing the process using energy ?
- joecool1029 4y agoYes, I don't know if it's done commercially but the general idea is to heat and melt the rusted parts in a reducing atmosphere. What can be done commercially for rusted stuff (cars and such) is to apply rust converters that convert the iron oxide layer on the outside into a stable primer so it seals the outside of the metal from oxidizing further.
- awestroke 4y agoThe problem with that is that there will probably be rust and moisture deeper down underneath the new paint that will continue the rust process, cracking the paint and allowing more water, salt and air in
- TEP_Kim_Il_Sung 4y agoMolar mass of Iron Fe =55.845 g/mol Molar mass of Rust Fe2O3 =159.7 g/mol Rust weighs in around 3x more than bare metal, so that makes this primer one expensive fuel guzzling choice.
- TomJansen 4y agoThat is why I always go to the toilet before driving
- simonh 4y agoOnce it’s been converted to primer it’s not rust anymore. Still probably heavier than the metal, but eh. Get a haircut.
- smoyer 4y agoMore but not three times as much according to your molecular weights (there are two iron atoms in the rust molecules)
- TEP_Kim_Il_Sung 4y agoYup. While I failed chemistry, I still remember most relevant stuff.
- mannykannot 4y agoThere are ways to turn rust back to iron, but what you get back is not the original strong steel piece, it is a spongy form of iron that immediately rusts in air.
- NullPrefix 4y agoCan it be smelted into proper iron?
- Haga 4y ago[dead]
- Quequau 4y agoI watch this YouTube channel "Watch Wes Work" which is a dude that runs his own auto repair service in the frozen wasteland that is Illinois. After seeing him work on older rusty vehicles, I have the desire to see one of them get driven into a large pool of Evapo-Rust and left for a week or two.
- JoeAltmaier 4y agoI'm in Iowa, and every car on the road has rust. Due to that. I spent 2 months in Foster City during the lockdown at a gig, stuck in a hotel room, driving to a large empty building to do firmware porting on a bench. One morning I walk out fiddling with my keys, went around the back of my truck and saw a pile of pipes behind it. Wha? It was the pickup truck parked 2 stalls down from me. Burned during the night. Utterly consumed. No rubber on the rims; just naked metal. The seats were just springs. The license plate a melted blob. The engine on the ground. Broken in half, the cab tilted forward at a crazy angle, the bed tilted back. Sucks to be that guy! I thought. Then turned to my truck. The left side was melted like a Dali painting, the mirror drooping down, the running boards spilling onto the pavement in strings and puddles. The lights were foamed-up weird sculptures sticking out like alien apendages. Anyway 6 months later all the parts had arrived and it was repaired and I went back out to drive it home. My baby! So now I drive a truck that's new on the left side, but a rusted Iowa clunker on the right side. Works for me; I get in the left side so I see that. Still not feeling the love, California.