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

Printable Version  
 Pages:  1  2
Author: Subject: aga Does Decarboxylation
macckone
International Hazard
*****




Posts: 1386
Registered: 1-3-2013
Location: Over a mile high
Member Is Offline

Mood: Electrical

[*] posted on 23-9-2015 at 20:07


https://www.youtube.com/watch?v=Vlh0YDRmZ0I

Bakelite?
View user's profile View All Posts By User
HeYBrO
National Hazard
****




Posts: 266
Registered: 6-12-2013
Location: 'straya
Member Is Offline

Mood: :)

[*] posted on 25-9-2015 at 04:46


Quote: Originally posted by aga  
Waiting on some DCM to arrive to try to make pthalic anhydride from some gloves.

Will make the required phenol after i've got the other reagents for phenolpthalein.


You don't need DCM, just use isoprapanol, or methanol as blogfast used i think.
View user's profile View All Posts By User
aga
Forum Drunkard
*****




Posts: 7028
Registered: 25-3-2014
Member Is Offline


[*] posted on 25-9-2015 at 10:56


DOH !

(marches off to shed to dunk gloves in methanol ...)




View user's profile View All Posts By User
j_sum1
Administrator
********




Posts: 4864
Registered: 4-10-2014
Location: Oz
Member Is Offline

Mood: Metastable, and that's good enough.

[*] posted on 25-9-2015 at 14:16


DCM is a simple distillation from paint stripper. You can even do it straight from the can.
View user's profile View All Posts By User
blogfast25
Thought-provoking Teacher
*****




Posts: 10334
Registered: 3-2-2008
Location: Old Blighty
Member Is Offline

Mood: No Mood

[*] posted on 25-9-2015 at 14:32


Quote: Originally posted by aga  
Waiting on some DCM to arrive to try to make pthalic anhydride from some gloves.



With a BP of barely 40 C you need to use iced water for any refluxers/condensers.




View user's profile Visit user's homepage View All Posts By User
The Volatile Chemist
International Hazard
*****




Posts: 1973
Registered: 22-3-2014
Location: 'Stil' in the lab...
Member Is Offline

Mood: Copious

[*] posted on 9-10-2015 at 11:42


Sheesh, that really is low. I use ice water usually, but I don't salt it (I don't know how much of a difference it would make) because my pump claims that it only works in fresh water (ie, not salt water like in marine aquariums).



View user's profile Visit user's homepage View All Posts By User
Little_Ghost_again
International Hazard
*****




Posts: 985
Registered: 16-9-2014
Member Is Offline

Mood: Baffled

[*] posted on 9-10-2015 at 11:49


Quote: Originally posted by The Volatile Chemist  
Sheesh, that really is low. I use ice water usually, but I don't salt it (I don't know how much of a difference it would make) because my pump claims that it only works in fresh water (ie, not salt water like in marine aquariums).
what about adding antifreeze or maybe some IPA to lower the temperature.



Dont ask me, I only know enough to be dangerous
View user's profile View All Posts By User
kt5000
Hazard to Others
***




Posts: 133
Registered: 27-3-2013
Location: Southwest US
Member Is Offline

Mood: Final exams

[*] posted on 14-10-2015 at 12:19


Our college lab uses a chiller filled with antifreeze that's looped out to the condensor. It seems to work quite well. IPA would be a less toxic solution, though.
View user's profile View All Posts By User
aga
Forum Drunkard
*****




Posts: 7028
Registered: 25-3-2014
Member Is Offline


[*] posted on 14-10-2015 at 12:25


Quote: Originally posted by blogfast25  
With a BP of barely 40 C you need to use iced water for any refluxers/condensers.

New Soxhlet arrived today (donated the last one to a local Uni)

The DCM does not pass through any volume of these cut up vinyl golves, so the Soxhlet did not work at all.

Probably better to boil & reflux.

Trying it with merely Cold water was Interesting - the DCM at the top was refluxing from the heat of the incoming DCM stream

Reached the 3rd bulb of the Allhin condenser.

With Ice added, it did the same, just in the first, and half of the second bulb..

Edit:

Abandoned the attempt for now.

Cleanup was a bitch - the DCM makes these gloves into a mush that sticks to the glass like crazy.

[Edited on 15-10-2015 by aga]




View user's profile View All Posts By User
kt5000
Hazard to Others
***




Posts: 133
Registered: 27-3-2013
Location: Southwest US
Member Is Offline

Mood: Final exams

[*] posted on 15-10-2015 at 15:55


I'm finding that polymer goos are a pain to clean up as well. I've dusted off my plans to extract something useful from that paint stripper. It left a mess in the test tubes. I can't imagine trying to scrub it out of a boiling flask. Hot methanol managed to dissolve a lot of it.
View user's profile View All Posts By User
arkoma
Forum Redneck
*****




Posts: 1116
Registered: 3-2-2014
Location: Red River Bottoms
Member Is Offline

Mood: Amazed

[*] posted on 28-10-2015 at 17:14


OMG I have missed you nutters



Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts.

Mark Twain
View user's profile View All Posts By User
Oscilllator
International Hazard
*****




Posts: 659
Registered: 8-10-2012
Location: The aqueous layer
Member Is Offline

Mood: No Mood

[*] posted on 28-10-2015 at 19:00


Quote: Originally posted by arkoma  
OMG I have missed you nutters

He's Back! What took you so long?
View user's profile View All Posts By User
Syntropymancer
Harmless
*




Posts: 5
Registered: 14-12-2015
Member Is Offline

Mood: No Mood

[*] posted on 14-12-2015 at 18:08


Quote: Originally posted by UC235  
Uh, you do know that Nile Red's video is from my writeup in prepub, right? That last bit of liquid might not have been phenol at all, but phenyl salicylate or xanthone. Did the temperature rise a lot when it passed over?


And most, not all, of his videos are redone versons of both yours and myst, nothing against him he makes good videos, but I think he should be more apt to cite you guys
View user's profile View All Posts By User
 Pages:  1  2

  Go To Top