• PhilipTheBucket@ponder.catOP
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    6 days ago

    Is lye a common thing for people to use as coolant? I’m not saying it’s not, I’ve just never heard of it.

    • skillissuer@discuss.tchncs.de
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      6 days ago

      mildly concentrated sodium hydroxide solutions would corrode the living fuck out of aluminum pretty quickly (https://www.calpaclab.com/aluminum-chemical-compatibility-chart/), especially when hot and circulating, so no

      could have been a kind of additive maybe? but then it won’t be a lot of it. borax forms a gel or at least high viscosity solution when mixed with glycols so both can’t be used at the same time as a coolant

      Dye might be fluorescein, it fluoresces under UV (duh) could be useful in checking what’s this thing

      • Flying Squid@lemmy.world
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        6 days ago

        It kind of sounds like they told some junior exec to come up with a quick excuse because whatever they were actually doing was a lot worse.

    • irotsoma@lemmy.world
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      6 days ago

      It’s possible they didn’t properly treat the liquid they were using as coolant and needed the lye and borax to remove scaling and that it actually wasn’t the coolant itself. That would also explain not having the proper permits for storing the chemicals if they were just being used for cleaning. Though wouldn’t be surprised if they were then just going to dump it down the drain anyway…