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

Printable Version  
Author: Subject: Acid resistant paint for themometer??
Justin
Hazard to Self
**




Posts: 84
Registered: 6-5-2010
Member Is Offline

Mood: No Mood

[*] posted on 2-9-2010 at 20:22
Acid resistant paint for themometer??


I searched the forum for an answer but i didnt find one, my dilemma is that i was recently distilling fuming HNO3 and it ate the paint off my thermometer, luckily it has grooves in the glass for the increment, so alittle paint in the grooves and it would be like new again, i don't plan on distilling corrosive acids much at all, but i would be nice if it would hold up too HNO3 for that rare occasion when i need more fuming HNO3 from the 70% that i have. Anyone know of a good paint for this application??
View user's profile View All Posts By User
psychokinetic
International Hazard
*****




Posts: 558
Registered: 30-8-2009
Location: Nouveau Sheepelande.
Member Is Offline

Mood: Constantly missing equilibrium

[*] posted on 2-9-2010 at 22:00


Perhaps an etched thermometer would be more appropriate for heavy acid work?

Sorry I didn't actually answer your question, however.




“If Edison had a needle to find in a haystack, he would proceed at once with the diligence of the bee to examine straw after straw until he found the object of his search.
I was a sorry witness of such doings, knowing that a little theory and calculation would have saved him ninety per cent of his labor.”
-Tesla
View user's profile View All Posts By User
Contrabasso
National Hazard
****




Posts: 277
Registered: 2-4-2008
Member Is Offline

Mood: No Mood

[*] posted on 3-9-2010 at 12:37


Pay the money and get a real Quickfit branded coned thermometer to suit your needs. Or use a ground jointed thermometer pocket with some thermal transfer oil.
View user's profile View All Posts By User
denatured
Hazard to Others
***




Posts: 151
Registered: 7-8-2004
Location: -
Member Is Offline

Mood: HCl 50%?

[*] posted on 3-9-2010 at 14:02


You can try painting it with whatever paint you have then paint it with epoxy glue, not sure though if it will hold long enough.
View user's profile View All Posts By User
BromicAcid
International Hazard
*****




Posts: 3141
Registered: 13-7-2003
Location: Wisconsin
Member Is Offline

Mood: Rock n' Roll

[*] posted on 3-9-2010 at 16:32


I've had the same problem in the past and I just use a pain marker and run it real quick over the graduations then use my finger and run it over the same marks to wipe off the excess and get it in the grooves. It makes the numbers visible once again. Has to be repeated every few times but since thermometers usually go on the pot side contamination to the distillate is non-existent and any contamination to the pot is minimal (due to the quantity of the material involved). Cheap and effective.



Shamelessly plugging my attempts at writing fiction: http://www.robvincent.org
View user's profile Visit user's homepage View All Posts By User
Justin
Hazard to Self
**




Posts: 84
Registered: 6-5-2010
Member Is Offline

Mood: No Mood

[*] posted on 4-9-2010 at 09:40


Ya i had a 10/30 ground glass thermo that went up too 400C and i made the stupidest mistake of placing it in 250C+ H2SO4, popped the damn bulb,luckily i was in full gear cuz that fountain of H2SO4 scared the s**t outta me!!! Hell i could throw some sulfuric on some pants put em in the wash and sell em for $100 bucks a pair with the "holy" jeans style over here in the states. THe sharpie idea came to mind too bromic, may just use a sharpie or try denatureds idea. I need to get another ground glass thermo and a adapter because my teflon thermo adapter leaks around the o-ring when i pull a vacuum on my setup, and i wasnt pulling much with my pos used gast diaphram that needs a overhaul, i just use it for filtration mainly, i need to get a aspirator. Anyone else had a leaky thermo joint?? i figured ground glass would be the only way too fix it, i tried grease and all and it still leaks!!!
View user's profile View All Posts By User

  Go To Top