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

Printable Version  
Author: Subject: Hydrogen Sulfide Safety
DFliyerz
Hazard to Others
***




Posts: 241
Registered: 22-12-2014
Member Is Offline

Mood: No Mood

[*] posted on 16-2-2015 at 11:49
Hydrogen Sulfide Safety


I'm planning to make hydrogen sulfide not to commit suicide, but to synthesize dimethyl sulfide so I can make dimethyl sulfoxide. However, due to the lack of an actual lab, I wanted to check my procedure here before I go any further in this synthesis. I plan to have the hydrogen sulfide generated in a large Erlenmeyer flask with a rubber stopper and rubber tube leading into another flask (no stopper this time) that is full of methanol with a layer of aluminum oxide on the bottom. I'd do this outside with a fan pointing away from the recieving flask, and would also wear a half-facepiece respirator with a organic vapor/acid gas cartridge. Now, I ask: are these precautions enough? Or should I just give up on this idea?
View user's profile View All Posts By User
neptunium
International Hazard
*****




Posts: 922
Registered: 12-12-2011
Location: between Uranium and Plutonium
Member Is Offline

Mood: meta stable

[*] posted on 16-2-2015 at 12:00


so you want to start from a highly toxic gas to get a higly flamable and irritant volatile liquid (not to mention the smell) to get a chemical as cheap and readily availlable as DMSO???

http://www.ebay.com/itm/DMSO-Dimethyl-Sulfoxide-100ml-Steril...

i understand you want to learn about synthesis but what about a less risky potentially hazardous endavour?
just a thought...




Http://www.d-radlab.com/
View user's profile Visit user's homepage View All Posts By User
turd
International Hazard
*****




Posts: 800
Registered: 5-3-2006
Member Is Offline

Mood: No Mood

[*] posted on 16-2-2015 at 13:06


Quote: Originally posted by DFliyerz  
Or should I just give up on this idea?

Forget it.
https://www.sciencemadness.org/whisper/viewthread.php?tid=10...
https://www.sciencemadness.org/whisper/viewthread.php?tid=10...

And even if you manage not to kill yourself you will not obtain any useful quantities of clean DMSO.

PS: This kind of thread goes to "Beginnings".
View user's profile View All Posts By User
Dr.Bob
International Hazard
*****




Posts: 2349
Registered: 26-1-2011
Location: USA - NC
Member Is Offline

Mood: No Mood

[*] posted on 16-2-2015 at 19:09


Even parts per million will have the neighbors calling 911 and the gas company to find the gas leak. (Yes, I know that they use t-butyl thiol, but many people can't tell one sulfide from another.)

I have to agree that making DMSO from H2S seems like a bad idea, it is easy to find DMSO, and oxidizing DMS to DMSO is not a trivial reaction, it is not fast or efficient except maybe with ozone, and even that stinks badly at -78C. The DMS is volatile and evaporates easily, so it is hard to trap at RT.

I would buy some DMSO any day before trying this. I don't even like handling DMS in the hood, as it leaves a lingering odor. In ppm's, it is manageable, larger amounts stick bad.
View user's profile View All Posts By User

  Go To Top