Barking Dog

Andrea Sella of UCL chemistry shows off the notorious 'barking dog' reaction, responsible for many a scared facial expression in pre-1920's photography.

Category:

Howto & Style

Tags:

• chemistry
• CPS
• Sella
• Andrea
• Barking

[JosephKrammer]

That was more a dog fart.

[TheWiewiorski]

ooo kurrwaaa

[extramural]

@dayknowsalchemy The only thing my dentist gives me is infection.

[antiswattt]

nice.. plz tell me where i get nitrous oxide and carbon disulfide or what you used.. if it produces sulfur (:

[kkcrazykk5]

If you do it with small pipes, it gives a bark-like sound

That's why it's called that way

[pawsawsome]

lol that had nothing to do with a dog but that was halarious

[1VII2]

Yeah I didn't think it was but she said it was. Maybe she meant the carbon disulfide...

Anyway she said it was too dangerous. I was pretty upset...

[dayknowsalchemy]

nitrous oxide is just laughing gas. dentist's give it to you in the chair. carbon disulfide, on the other had, is pretty toxic i work with it all the time...but A; it stinks (byproducts..sulfer...ew) and B; yeah...totally toxic.

[1VII2]

Thanks for the reply but it's just a little late. We were forced to do the self-igniting candle instead because of the fact that nitrous oxide is toxic (or so our teacher said).

[dayknowsalchemy]

glass blowers'll make you one. or get one from a science merch vendor...don't think you need a license to do so.