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zedprime posted:Yellow cake is UnOx which is pretty fine and dandy in the heavy metal poisoning front since your body is pretty adept at peeing out metal oxides. A lot like lead, for an adult you need to be acting really stupid for heavy metal poisoning to kick in.
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Jul 5, 2023 21:32
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Kwyndig posted:Well yeah before enrichment it's just a mildly radioactive heavy metal. The half life of uranium 238 is 4 and a half billion years which puts it in the relatively stable column for a radioactive isotope. It's after it's bombarded with neutrons and forced to undergo fission that you get the fun byproducts. Even after enrichment, on its own pure U235 is still mostly just a mildly toxic heavy metal with such a long halflife it may as well be stable across human-relevant timescales. It gets a lot nastier when you consider everything required to produce enriched uranium. And storing/processing significant amounts of it.
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Jul 5, 2023 21:42
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Vavrek posted:So is the practical concern with lead more a matter of gradual accumulation, or your body reaching equilibrium with the nonzero amount of lead in the water you're drinking? Something like that? The modern expectation of lead elimination is largely for kids who can bioaccumulate enough with far smaller exposures and have a lifetime of effects. An adult can otherwise live with lead pipes and crystal glassware and just be a little closer to harmful amounts if exposed elsewhere in the environment. Most adult lead poisoning is pants on head stupidity like lead acetate sweeteners, acid leaching from lead containing, plumbing, stoneware, or crystal, or burning lead in every internal combustion engine.
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Jul 5, 2023 21:49
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FWIU current medical belief is that there is no truly 'harmless' dose of lead, just ones that are small enough to be hard to measure
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Jul 5, 2023 21:53
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Lead exposure from guns is also a thing, but it's not a huge concern for adults as long as you're properly washing up after shooting and not shooting indoors with no ventilation. You can also buy lead-free ammo, but it's expensive. I read an article about a guy who got really bad lead poisoning from working at a poorly ventilated indoor shooting range and cleaning without proper PPE. He had some pretty gnarly memory and mood problems as a result.
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Jul 5, 2023 22:55
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With lead exposure from guns, it kind of depends on the nature of the exposure. If you're not careful with those, one can bioaccumulate a very large amount of lead in a very short time frame.
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Jul 7, 2023 16:54
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Lowtax was a victim of lead exposure, true.
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Jul 7, 2023 17:02
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Bongo Bill posted:With lead exposure from guns, it kind of depends on the nature of the exposure. If you're not careful with those, one can bioaccumulate a very large amount of lead in a very short time frame. *worst* type to be exposed to. Range lead that's been sitting outside. Some bacteria eat it but they go "ew what's this" and barf it back out as an organic molecule. That's now water semi soluble and can absorb through the pores in your skin.
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Jul 7, 2023 17:25
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Marcade posted:Lowtax was a victim of lead exposure, true. 
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Jul 7, 2023 20:29
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Yellow Cake is actually very dangerous, leading cause of Czech Neck https://www.youtube.com/watch?v=k0tMvxV-GC4
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Jul 7, 2023 20:31
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OwlFancier posted:Yellow Cake is actually very dangerous, leading cause of Czech Neck Broad-stroke it for me, Latter Day Saints (LDS) have blocked it in my country.
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Jul 7, 2023 20:42
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Cake is a bad yellow drug
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Jul 7, 2023 20:45
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shalafi4 posted:*worst* type to be exposed to. After 40+ years of shooting I was concerned enough about it to ask for a lead test the last time I had bloodwork drawn, but it came back 1.2uG/dL. So I guess I can keep it up for a while. Hell, I might stop washing my hands.
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Jul 7, 2023 20:47
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Phanatic posted:After 40+ years of shooting I was concerned enough about it to ask for a lead test the last time I had bloodwork drawn, but it came back 1.2uG/dL. So I guess I can keep it up for a while. Hell, I might stop washing my hands. Oh you can go shooting a bunch and get exposed to relatively tiny amounts of it. Although depending on which state you're in that's ~1/3 of the way to being classified as "elevated lead levels" and treatment is suggested. (and it's not just California)
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Jul 7, 2023 21:01
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As someone who is not a medical professional and clearly treats heavy metals with a non modern amount of respect, I prescribe you to take a week off shooting and drink a suitcase of beer instead.
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Jul 7, 2023 21:09
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zedprime posted:As someone who is not a medical professional and clearly treats heavy metals with a non modern amount of respect, I prescribe you to take a week off shooting and drink a suitcase of beer instead. what's he gonna do for the other six days?
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Jul 7, 2023 22:43
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People that actually work in a range do have some concerns about long-term occupational exposure. One of the indoor ranges near me did a big lead remediation project a few years back and installed a bunch of ventilation to improve air quality.
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Jul 7, 2023 22:54
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I can only imagine improved ventilation at a range being shooting holes in the walls.
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Jul 7, 2023 22:56
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Marcade posted:I can only imagine improved ventilation at a range being shooting holes in the walls. Big air handlers to suck up and filter the air. They work but they're expensive and maintenance hogs. You really need them to keep an indoor range clean though.
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Jul 8, 2023 00:25
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venus de lmao posted:I read an article about a guy who got really bad lead poisoning from working at a poorly ventilated indoor shooting range and cleaning without proper PPE. He had some pretty gnarly memory and mood problems as a result. I read some speculation that it was the primers specifically since they use or at least used to use a lead based explosive similar to lead azide that generates a puff of nitrogen and lead vapor when it goes off.
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Jul 8, 2023 11:05
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OwlFancier posted:Yellow Cake is actually very dangerous, leading cause of Czech Neck It stimulates an area of the brain known as Shatner's Bassoon
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Jul 9, 2023 00:03
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coldpudding posted:I read some speculation that it was the primers specifically since they use or at least used to use a lead based explosive similar to lead azide that generates a puff of nitrogen and lead vapor when it goes off. Lead styphnate is a common one, yeah, and that's why indoor ranges have to have a good ventilation system. There's also the occupational exposure to a lot more lead residue than a typical shooter when you're cleaning a range, especially without proper PPE.
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Jul 9, 2023 00:50
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Spotted elsewhere: Cyclosophoroheneicosaose https://www.are.na/block/5491592  Described as "Biblically accurate Santa Claus".
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Jul 11, 2023 05:05
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"Be
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Jul 11, 2023 07:42
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Lemniscate Blue posted:Spotted elsewhere: Cyclosophoroheneicosaose Isn't this the active ingredient in Fabreeze?
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Jul 11, 2023 11:12
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Yeah smells love to get trapped in that ring. I think it's related to febreeze but not that exact molecule.
Armacham has a new favorite as of 11:27 on Jul 11, 2023 |
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Jul 11, 2023 11:25
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Lemniscate Blue posted:Spotted elsewhere: Cyclosophoroheneicosaose drat, and I thought the spell to create a portal would be verbal, not alchemical. No wonder I couldn’t make it work 
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Jul 11, 2023 12:20
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The chemical analogue to a yodel
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Jul 11, 2023 12:27
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rndmnmbr posted:"Be Swap out the Oxygens for Nitrogen and I’ll be scared. Also make a great thread logo.
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Jul 11, 2023 13:17
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It’d be a nitrogen portal to the afterlife, for drat sure 
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Jul 11, 2023 16:49
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Armacham posted:Yeah smells love to get trapped in that ring. I think it's related to febreeze but not that exact molecule. I always figured the "locks odors away!" thing was just legally meaningless marketing schtick, didn't realize there were molecules that could actually do that.
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Jul 11, 2023 18:00
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That's right, Fabreeze is cycloamylose.
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Jul 11, 2023 18:28
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Lemniscate Blue posted:Spotted elsewhere: Cyclosophoroheneicosaose So, genuine question from a non-chemist: what’s up with the little thing dangling off the top left?
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Jul 11, 2023 18:51
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It's a phosphate.
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Jul 11, 2023 18:55
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It's a natural product, so there's not necessarily a purpose to it. It could be a leftover from the way it's synthesized, it could make it easier for an enzyme to interact with it, there are a lot of things it could do, or it could just not interfere with what the molecule is supposed to do so it doesn't end up mattering.
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Jul 11, 2023 18:59
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mycomancy posted:That's right, Fabreeze is cycloamylose. If the infinity gauntlet was made of cornstarch
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Jul 11, 2023 21:09
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mycomancy posted:That's right, Fabreeze is cycloamylose. so that's where the "cool s" came from
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Jul 11, 2023 23:23
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Luneshot posted:So, genuine question from a non-chemist: what’s up with the little thing dangling off the top left? That is the "lock" that holds the ring together. Break it and the ring breaks. Helpful if your Santa summoning goes sideways.
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Jul 14, 2023 20:04
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shalafi4 posted:*worst* type to be exposed to. Site remediation for clays ranges is expensive. Shooting range lead cleanup to cost $780K. And that was for 2 acres.
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Jul 14, 2023 21:03
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Luneshot posted:So, genuine question from a non-chemist: what’s up with the little thing dangling off the top left? that's where you feed mana into the summoning circle
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Jul 14, 2023 22:59
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