Sciencemadness Discussion Board
Not logged in [Login ]
Go To Bottom

Printable Version  
Author: Subject: Why is osmium tetroxide volatile?
Hazard to Self

Posts: 54
Registered: 6-5-2016
Location: Europe!
Member Is Offline

Mood: Looking for a way out

[*] posted on 4-3-2017 at 08:59
Why is osmium tetroxide volatile?

I work with electron microscopes and work with this stuff every week. I'm used to the double gloves, the face shields, the fume extraction and all the other things that stop it from killing me but there's one thing about I just don't understand and that makes it even worse to handle.

What business does a soluble 254 Da metal containing molecule have in evaporating from solution? I mean looking at it on paper, it just doesn't seem like that should be possible yet the inside of the secondary container gets stained with the stuff after a few days in the fridge and the fume hood ceiling is distinctly grey.

Is there an explanation? ( one that I could understand )
View user's profile Visit user's homepage View All Posts By User
International Hazard

Posts: 4278
Registered: 1-2-2013
Location: The tiniest college campus ever....
Member Is Offline

Mood: Semi-victorious.

[*] posted on 4-3-2017 at 09:58

It's tetrahedral and non-polar, just like tin tetrachloride, which is also volatile.

Please remember: "Filtrate" is not a verb.
Write up your lab reports the way your instructor wants them, not the way your ex-instructor wants them.
View user's profile View All Posts By User
International Hazard

Posts: 5104
Registered: 1-11-2003
Location: UK
Member Is Offline

Mood: No Mood

[*] posted on 4-3-2017 at 10:25

Ditto tetramethyl lead.
View user's profile View All Posts By User
International Hazard

Posts: 2694
Registered: 3-11-2013
Member Is Offline

Mood: Big

[*] posted on 4-3-2017 at 13:14

TiCl4, CrO2Cl2, VOCl3, VO(NO3)3, Cu(NO3)2, WF6, etc are examples of the phenomenon where metals in their highest oxidation state can prefer to form molecules rather than ionic crystals
View user's profile View All Posts By User
Thread Moved
5-3-2017 at 11:20

  Go To Top