Scientist Dissolves Soda Can To Reveal A Thin Plastic Liner Inside
Scientist Dissolves Soda Can To Reveal A Thin Plastic Liner Inside
Canned soft drinks are actually held in plastic, not aluminum.
I thought this was common knowledge.
Yeah, same. The only beverage containers that don't contain plastic are glass, and even those the lids are either entirely plastic or plastic underneath to seal against the glass.
Water reacts with aluminum over time. The inside of aluminum cans have always been lined. Same with aluminum water bottles and cans. If your aluminum water bottle is old and makes water taste funny, get a new one--the lining is probably shot.
If the aluminum is old, it formas a patina of aluminum hydroxide/aluminum hydride/aluminium oxide that stabilizes it somewhat.
People often don't know - because water autoionizes, it is both an acid and a base. This is why so many things can readily dissolve in it.
Hard hitting science experiments from before the year 2000!
Didn’t realize this was somewhat common knowledge. Depressing.
I only found out recently too.
Not to cast doubt on this, but how are aluminum cans recycled if they're also plastic, which is somewhat notorious for not being recyclable? Honest question here, as I sip from an aluminum can.
Aluminum is recycled by melting it. Plastic burns off long before the aluminum melts. The residue might contaminate the aluminum but there are ways to remove that in the melt.
This is true, and when people talk about recycling aluminium cans they're actually only talking about recycling the aluminium in those cans. The liner is not recycled.
However it's a relatively small amount of plastic, and burning it while melting the metal does prevent it from ending up as plastic pollution. So aluminium cans are still better than non-recycled plastic packaging.
Huh, never knew that was a thing.
Same with most tin cans and whatnot.
That liner is BPA, an endocrine disruptor!
Generally no. The industry moved away from BPA in response to regulatory requirements.
Oooo, seems my knowledge is probably outdated. Thanks
Does it sound to anyone else like the video's narrator used a pitch shifter on his voice? I wonder if he's aware that a pitch transformation like that can be trivially reversed.
Ya but reversing the pitch takes effort that most people won’t go to.