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

Printable Version  
Author: Subject: Best way to clean tar (chemically)
schrodingers_hat
Harmless
*




Posts: 9
Registered: 5-10-2013
Member Is Offline

Mood: No Mood

[*] posted on 21-6-2014 at 09:54
Best way to clean tar (chemically)


What ways do you experts have in mind to chemically clean tarry and other unwanted byproducts from glassware (by chemically, I mean no scrubbing or physical removal of the substance)

Do you just barrage it with strong acids or bases and polar and non polar substances until something does the trick, or is there a more methodical formula?
View user's profile View All Posts By User
leu
National Hazard
****




Posts: 368
Registered: 13-10-2005
Member Is Offline

Mood: No Mood

[*] posted on 21-6-2014 at 09:59


Using:

http://www.sciencemadness.org/talk/search.php?fid=2

would have found:

http://www.sciencemadness.org/talk/viewthread.php?tid=7277&a...

as well as many other threads concerning cleaning glassware :) The end results from the effort applied :cool:




Chemistry is our Covalent Bond
View user's profile View All Posts By User
arkoma
Forum Redneck
*****




Posts: 1249
Registered: 3-2-2014
Location: Red River Bottoms
Member Is Offline

Mood: Six years of Madness

[*] posted on 21-6-2014 at 10:02


cleaning a round bottom flask through a 24mm neck is a pain in the arse no matter HOW you slice it.



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

Mark Twain


Visiting my beloved Mojave
View user's profile View All Posts By User
mnick12
National Hazard
****




Posts: 404
Registered: 30-12-2009
Location: In the lab w/ Dr. Evil
Member Is Offline

Mood: devious

[*] posted on 21-6-2014 at 10:14


Potassium hydroxide in ethanol is an excellent way to dissolve organic residue. Let it soak for one or two days, but just be careful because it will slowly etch the glass.
View user's profile View All Posts By User
hissingnoise
International Hazard
*****




Posts: 3924
Registered: 26-12-2002
Member Is Offline

Mood: Pulverulescent!

[*] posted on 21-6-2014 at 10:23


I'd have thought hot toluene would do the trick?

View user's profile View All Posts By User
schrodingers_hat
Harmless
*




Posts: 9
Registered: 5-10-2013
Member Is Offline

Mood: No Mood

[*] posted on 21-6-2014 at 10:42


Thanks for all the suggestions!
View user's profile View All Posts By User
plante1999
International Hazard
*****




Posts: 1937
Registered: 27-12-2010
Member Is Offline

Mood: Mad as a hatter

[*] posted on 21-6-2014 at 10:49


I really like boilling hot chromosulphuric acid to clean stained glass. It brings it like new.



I never asked for this.
View user's profile View All Posts By User
arkoma
Forum Redneck
*****




Posts: 1249
Registered: 3-2-2014
Location: Red River Bottoms
Member Is Offline

Mood: Six years of Madness

[*] posted on 21-6-2014 at 11:39
This Just In


Was distilling Juniper berries this morning---lots of splooge in my flask. Used a phosphoric acid bathroom cleaner with a few drops of dawn dish soap added--Voila--clean glass.



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

Mark Twain


Visiting my beloved Mojave
View user's profile View All Posts By User
Texium (zts16)
Administrator
********




Posts: 3170
Registered: 11-1-2014
Location: San Marcos, TX
Member Is Offline

Mood: Graduated

[*] posted on 21-6-2014 at 19:37


I have a nice curvy flask cleaning brush that works very well for cleaning both round-bottom and Erlenmeyer flasks. It's really flexible, so it'll go into the flask easily and will conform to the shape of the sides to get all surfaces. Here's where I got it:
http://www.cynmar.com/ProductDetail/12030242_Bristle-Flask-B...
They have a few different sizes

Also, arkoma, what were you doing with the juniper berries? I have a ton of juniper trees around my house, and if there's anything cool that can be made with them I'd be very interested in doing that.

[Edited on 6-22-2014 by zts16]




Come check out the Official Sciencemadness Wiki
My YouTube Channel
My blog
(it doesn't like Chrome)
View user's profile Visit user's homepage View All Posts By User
hyfalcon
International Hazard
*****




Posts: 1004
Registered: 29-3-2012
Member Is Offline

Mood: No Mood

[*] posted on 22-6-2014 at 00:20


Look up Gin additive.
View user's profile View All Posts By User

  Go To Top