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

Printable Version  
Author: Subject: Old Nassau Reaction Variation
bismuthate
International Hazard
*****




Posts: 803
Registered: 28-9-2013
Location: the island of stability
Member Is Offline

Mood: self reacting

[*] posted on 16-10-2014 at 17:58
Old Nassau Reaction Variation


So Halloween is coming up. A great reaction for Halloween is the Old Nassau Reaction also Know as the Halloween clock reaction.
http://www.youtube.com/watch?v=Tv6_IsdnaGg
So cutting to the point:
Mercury sucks. Who likes using mercury salts? They're a pain!
So why don't we use Bismuth nitrate and any alkaloid? (my tap water contains some so yours might too) It should work to the same effect as mercury salts.
I would try it myself but my lab is shut down.
am I missing anything or will this work?




I'm not a liar, I'm just an enthusiastic celebrant of opposite day.
I post pictures of chemistry on instagram as bismuthate. http://iconosquare.com/bismuthate
or this viewer if you don't have an instagram (it sucks though) http://web.stagram.com/n/bismuthate
View user's profile Visit user's homepage View All Posts By User
Brain&Force
Hazard to Lanthanides
*****




Posts: 1296
Registered: 13-11-2013
Location: UW-Madison
Member Is Offline


[*] posted on 16-10-2014 at 19:28


Well, someone would have to try it. The kinetics may vary immensely.



Raney nickel can't hydrogenate dank memes.
View user's profile View All Posts By User
Jylliana92
Harmless
*




Posts: 10
Registered: 21-10-2014
Location: The Netherlands
Member Is Offline

Mood: Eager

[*] posted on 24-10-2014 at 13:30


I'm wondering... what if I do the classic iodine clock reaction, with orange food coloring... so that the colorless solution will be orange. I'm sure the black starch complex is much stronger so you won't see the orange when it's black..



Old account: Jylliana
21/f/nl.
School Science Tech.
View user's profile Visit user's homepage View All Posts By User
bismuthate
International Hazard
*****




Posts: 803
Registered: 28-9-2013
Location: the island of stability
Member Is Offline

Mood: self reacting

[*] posted on 24-10-2014 at 17:28


Yup the iodine starch complex is incredibly dark. You couldn't see the food coloring.



I'm not a liar, I'm just an enthusiastic celebrant of opposite day.
I post pictures of chemistry on instagram as bismuthate. http://iconosquare.com/bismuthate
or this viewer if you don't have an instagram (it sucks though) http://web.stagram.com/n/bismuthate
View user's profile Visit user's homepage View All Posts By User
Brain&Force
Hazard to Lanthanides
*****




Posts: 1296
Registered: 13-11-2013
Location: UW-Madison
Member Is Offline


[*] posted on 24-10-2014 at 18:11


The Old Nassau, though, "clocks" orange, then black. Similarly, the Briggs-Rauscher clocks brown, then black, then clear again.



Raney nickel can't hydrogenate dank memes.
View user's profile View All Posts By User
Arcuritech
Harmless
*




Posts: 34
Registered: 19-8-2012
Location: Scraping fused boria from a crucible.
Member Is Offline

Mood: Shuestring budget?! All I got was an aglet!!

[*] posted on 24-10-2014 at 19:17


Quote: Originally posted by Jylliana92  
I'm wondering... what if I do the classic iodine clock reaction, with orange food coloring... so that the colorless solution will be orange. I'm sure the black starch complex is much stronger so you won't see the orange when it's black..


You would need an orange dye that won't react or form a complex with any of the many components of the iodine clock mixture.

Such an organic dye seems unlikely to exist on account of the fact that the strong colors in dyes usually originate from lots of double bonds which the iodine, iodate*, and thiosulfate could all react with.

Using a very finely powdered highly insoluble (likely inorganic) dye should solve this problem at the expense of the clarity of the start solution - the powdered suspension would render the otherwise clear solution a translucent orange, while the final solution should retain its black color.

*edit to add iodate

[Edited on 2014-10-25 by Arcuritech]




"If we knew what we were doing, it wouldn't be called research." -Albert Einstein

"There are few things -- whether in the outward world, or, to a certain depth, in the invisible sphere of thought -- few things hidden from the man who devotes himself earnestly and unreservedly to the solution of a mystery." -Nathaniel Hawthorne ("Roger Chillingworth")
View user's profile View All Posts By User

  Go To Top