Confused about how Osmium Tetroxide becomes toxic

I am researching it for a personal writing project of a horror novel where it is used to kill one of the main characters in a trap (I know osmium is very rare but the main villain is a jackass millionaire who wants to flex on them). I am very confused on how the substance is activated because I keep getting conflicting information online. Some sources say it is made when Osmium is heated then exposed to air while others say it’s osmium in a powdered form and exposed to air and a bunch of their ways. What’s the actual way???? If it’s the heating way is their a certain temperature? Is it when it becomes a liquid or does the solid piece of osmium release a gas when it makes contact with the air at that temperature? If it’s powered is their a certain quality the flakes need to be? How fine do they need to be smashed to? Does it need to be pure osmium for it to get it’s killing effect or what percentage is the ratio of osmium and other materials mixed with its non pure form for it to work? Sorry if this is long and ranty I’m just really frustrated since I have been researching for a good 2 hours, if theirs some additional fun facts about it please tell me I really want this to be as accurate as possible lol. Thank you for reading :D

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πŸ“…︎ Dec 30 2020
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I've long been aware of the use of osmium tetroxide as a staining agent in microscopy; but I've onlyjust learned of _these_ lovely osmium compounds: near infrared dyes.
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πŸ‘€︎ u/Ooudhi_Fyooms
πŸ“…︎ Oct 07 2020
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Osmium tetroxide is such a picky
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πŸ‘€︎ u/lynarevlis
πŸ“…︎ Aug 06 2020
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Fixatives other than Osmium tetroxide?

Is it possible to fix animal tissues for SEM using something less dangerous than osmium tetroxide?

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πŸ“…︎ Jan 16 2020
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Why does Osmium, in bulk form, not generate toxic Osmium tetroxide at room temperature?

According to all the information I can find, including some chemistry text-books and "processing guideline" manuals, bulk Osmium is considered generally safe, because it does not produce toxic osmium tetroxide at room temperature (only above 400C). Powdered osmium sponge, on the other hand, transforms into osmium tetroxide at room temperature.

My question is: Why does a block of osmium not constantly form a small amount of osmium tetroxide on its surface?

Osmium tetroxide can't form a protective layer on the surface, as it is a liquid (and it can evaporate), so why is oxidation not continually occurring?

I get that it has less surface area than a powder, but so does a chunk of iron vs iron powder, and iron chunks still rust, hence my confusion.

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πŸ‘€︎ u/Natolx
πŸ“…︎ Jun 27 2019
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TIL that osmium tetroxide will sublimate at room temperature. In elemental form, osmium has a boiling point of over 5000Β° Celsius. en.wikipedia.org/wiki/Osm…
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πŸ‘€︎ u/ClF3FTW
πŸ“…︎ Jun 29 2016
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[asksciencebot] Why does Osmium, in bulk form, not generate toxic Osmium tetroxide at room temperature?

My guess: chem

The Mods: meta

accuracy of last 100 posts: 76.0%

What do you think? upvote if I did okay, downvote otherwise. Remember, when I say 'other' I mean one of these less used catagories [meta, soc, computing, psych, maths, neuro]

check the post here:https://redd.it/c60f97

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πŸ“…︎ Jun 27 2019
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Safety advice on working with Osmium and Ruthenium Tetroxide?

Hey guys, I have been working on this project for some time with my research professor which involves oxidizing a benzene ring all the way to a carboxylic acid. We read through tons of literature and the most promising option we could find was something along the lines of Ruthenium tetroxide or Osmium tetroxide.

That being said, I'm aware of the loads of safety concerns involved with such strong oxidizers. How should I approach these safety issues? would I need a specialized fume hood or a certain respirator? These sorts of details were not included in any MSDS.

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πŸ‘€︎ u/Big_Johnny
πŸ“…︎ Apr 29 2018
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TIL There is a chemical called Osmium Tetroxide that can, upon inhalation, cause death in concentrations well below your ability to smell it. en.wikipedia.org/wiki/Osm…
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πŸ‘€︎ u/PupPop
πŸ“…︎ Feb 18 2015
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What would happen if I mix osmium tetroxide with ozone?

I'm just a student and I'm fascinated with ozone and osmium, so I came up with the question above.

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πŸ‘€︎ u/brfrozen
πŸ“…︎ Aug 26 2015
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You guys think this mod will save me from calibrating all those noisy osmium tetroxide RF heaters?
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πŸ‘€︎ u/oh_bother
πŸ“…︎ Jan 05 2011
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Why is it preferred to use Potassium Permanganate over Osmium Tetroxide when performing dihydroxylation of alkenes?

Just curious as to why? Have yet to have been introduced to any aspect of any dangers regarding Osmium Tetroxide in class so I was just wondering.

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πŸ‘€︎ u/NordicAlchemist
πŸ“…︎ Mar 30 2016
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Molecule of the Month - Osmium Tetroxide. Don't breathe it in, poison! chm.bris.ac.uk/motm/oso4/…
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πŸ‘€︎ u/marc-kd
πŸ“…︎ Oct 22 2008
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Durable clearcoat for hazardous elements?

Does anyone know of a product that doesn't ruin the surface finish, makes an item safe to handle, and is easily removed if needed (burn or dissolve)? Looking particularly at osmium beads, but wouldn't mind it for ampules as well.

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πŸ‘€︎ u/Dominwin
πŸ“…︎ Jul 01 2021
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11.32g Crystalline pellet of Osmium from Metalle Wimmer
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πŸ‘€︎ u/Urutaus
πŸ“…︎ Apr 26 2021
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Osmium Precious Metal

Has anyone in the fountain pen community ever thought that Osmium might become a highly sought after speculative store of value in the future? It’s arguably the rarest precious metal on earth and from a production standpoint it is by far the rarest precious metal.

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πŸ‘€︎ u/UnanimousTruth
πŸ“…︎ Jun 02 2021
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We got some shiny osmium crystals from Metalle Wimmer in Austria!
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πŸ‘€︎ u/TimHack
πŸ“…︎ May 16 2021
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Want a 1 inch cube of osmium? Luciteria will make you one, but it won't be cheap!
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πŸ‘€︎ u/Alfred_R_Wallace
πŸ“…︎ Apr 13 2021
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How do I safely move my elements when I’m moving?

I’ve never moved with elements before and the one element I’m most worried about is osmium I’m worried about it getting smashed somehow and it forms osmium tetroxide so how do I move the elements from one house to the new one that I’m going to be living in? I put them in a wooden shelf with no door because that’s just what I bought so I do I keep them safe do I just handle it like any other fragile object which is to put bubble wrap or packing peanuts in the box and load it up or is there a different way?

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πŸ“…︎ Apr 08 2021
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Hello I have a question about my Osmium sample

since Osmium powder forms Osmium tetroxide powdered and my osmium sample is 0.15 grams is this oxide gonna form on my sample?

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πŸ“…︎ Feb 28 2021
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What do you call a man with no arms or legs in a hole?

Phil

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πŸ‘€︎ u/Rumblebully
πŸ“…︎ Jun 30 2021
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DAD JOKES ARE NOT DIRTY.

Go post NSFW jokes somewhere else. If I can't tell my kids this joke, then it is not a DAD JOKE.

If you feel it's appropriate to share NSFW jokes with your kids, that's on you. But a real, true dad joke should work for anyone's kid.

Mods... If you exist... Please, stop this madness. Rule #6 should simply not allow NSFW or (wtf) NSFL tags. Also, remember that MINORS browse this subreddit too? Why put that in rule #6, then allow NSFW???

Please consider changing rule #6. I love this sub, but the recent influx of NSFW tagged posts that get all the upvotes, just seem wrong when there are good solid DAD jokes being overlooked because of them.

Thank you,

A Dad.

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πŸ‘€︎ u/Von_Bostaph
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Rational
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πŸ‘€︎ u/mainhoonmadrasi
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I'd ruther not say
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πŸ‘€︎ u/Un_FaZed211
πŸ“…︎ Jul 01 2021
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My wife blocked me on Facebook because I post too many bird puns.

Well, toucan play at that game.

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πŸ‘€︎ u/Zayan-ali
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There are only two white people in the movie Black Panther

Martin Freeman, and Andy Serkis.

They also play roles in Lord of the Rings.

I guess that makes them the Tolkien white guys.

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πŸ‘€︎ u/jzagri
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My 3 yr old daughter made her first pun today and I almost cried. She was eating an apple and I asked her if she liked apples.

She said apple-lutely

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What did the left eye say to the right eye when they got married?

'Eye-do'

This is my first post pls don't kill me lol.

The people in the comment section is why I love this subreddit!!

Cred once again my sis wants credit lol

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πŸ‘€︎ u/tieyz
πŸ“…︎ Jun 27 2021
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What was a very common name in the middle ages?

I heard parents named their children lance a lot.

First post please don't kill me

Edit: i went to sleep and now my inbox is dead, thank you kind strangers for the awards!

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πŸ“…︎ Jun 24 2021
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Apologies if it's a bit corn-y
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πŸ‘€︎ u/mediashiznaks
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Gottemm
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πŸ‘€︎ u/Un_FaZed211
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so many choices
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Well that didn't cross my mind
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What pan is the best to make sushi in?

Japan.

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πŸ‘€︎ u/Most-Stomach4240
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He knows too much
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πŸ‘€︎ u/Potato_salad123
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where do pirates get their hooks?

second hand stores!

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πŸ‘€︎ u/bigus-_-dickus
πŸ“…︎ Jun 25 2021
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Proud dad moment.

Keep in mind, my son is 4 years old, so everything is an original to him.

I had to work late into the evening yesterday, and he was just going to bed when I got home. I had left home for the office nearly 14 hours prior, had a long day, lots of meetings, traffic, etc.

When I walked through the door, I was exhausted, run down, and starving. My wife hugged me and asked how my day was, and I replied, "Done. It was a good day, but has got me exhausted. I just want to grab a bite and go to bed. I'm hungry."

From my son's bedroom, I hear him shout, "Hi Hungry! Nice to meet you!"

Not only did it make me laugh, but I completely forgot about how hungry and tired I was. I went to his bedroom, and we laughed together about it. It was exactly what I needed.

Edit: Thanks for all the awards, kind strangers! I'll let my son know y'all enjoyed his joke too!

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I've just deleted all the German names off my pre owned iPhone..

it's Hans free now..

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πŸ‘€︎ u/HugoZHackenbush2
πŸ“…︎ Jun 28 2021
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I've spent all morning trying to think of a quality pun, just to come up with THIS otter rubbish.
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πŸ‘€︎ u/awesome_smokey
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My 6 year old wanted me to share his joke with you all. What is a horses favorite store?

Old Neeeeiiiiighvy

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πŸ‘€︎ u/WantedDadorAlive
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3.14159265387279 snek
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πŸ“…︎ Jun 20 2021
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Did you know 10+10 and 11+11 are the same?

10+10 is twenty and 11+11 is twenty too

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Rock bottom
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πŸ‘€︎ u/Theo19555
πŸ“…︎ Jun 23 2021
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How much does it cost for a pirate to get his ears pierced?

A buck-an-ear!

I Thank ye kind Matey for the booty! I be truly overwhelmed! Thank you!

Holy cow! Thank you everyone for the upvotes and awards! I wasn’t expecting this!

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