Lampwork Etc.
 
Send a PM to CorriDawn!

LE Live Chat

Enter Live Chat

No users in chat


The Flow

Beads of Courage


 

Go Back   Lampwork Etc. > Library > Tips, Techniques, and Questions

Tips, Techniques, and Questions -- Technical questions or tips

Reply
 
Thread Tools
  #1  
Old 2007-11-19, 11:48am
wendbill's Avatar
wendbill wendbill is offline
More ideas than talent
 
Join Date: Sep 17, 2005
Location: Melbourne, Oz
Posts: 2,565
Default How do you dispose of exhausted etch liquid?

How do you get rid of exhausted etch liquid?

I assume given all the warnings for use on the bottle you can't just dispose of it in normal household rubbish or tip it down the drain.
__________________
Wendy


To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
Reply With Quote
  #2  
Old 2007-11-19, 2:18pm
LyndaJ's Avatar
LyndaJ LyndaJ is offline
Senior Member
 
Join Date: May 21, 2006
Location: Cincinnati
Posts: 2,807
Default

Most etch liquid is trifluoriacetic acid. It nasty stuff

Here a link to the msds
http://www.jtbaker.com/msds/englishhtml/t5525.htm

and here's the paragraph on disposal
13. Disposal Considerations
Whatever cannot be saved for recovery or recycling should be managed in an appropriate and approved waste facility. Although not a listed RCRA hazardous waste, this material may exhibit one or more characteristics of a hazardous waste and require appropriate analysis to determine specific disposal requirements. Processing, use or contamination of this product may change the waste management options. State and local disposal regulations may differ from federal disposal regulations. Dispose of container and unused contents in accordance with federal, state and local requirements.
__________________
Lynda
Cheetah, 5 lpm and 7lpm conc/generator (8-9 psi), natural gas (booster), started 11/06
"The time you enjoy wasting is not wasted time." -- Bertrand Russell
Reply With Quote
  #3  
Old 2007-11-19, 3:22pm
cadia's Avatar
cadia cadia is offline
birdergirl ~o~
 
Join Date: May 17, 2006
Location: Unorganized Territory
Posts: 2,002
Default

Wouldn't dumping a bunch of baking soda in the bottle neutralize the acid making it less hazardous?
__________________

To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

~raised by wolves~sleeps with foxes~cooks for crows~feeds the bears~scrabbles with squids~antisymmetrical~politically agnostic.

To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.

Torchering glass since spring '06~ gold cricket & oxycon!~
Reply With Quote
  #4  
Old 2007-11-19, 6:12pm
wendbill's Avatar
wendbill wendbill is offline
More ideas than talent
 
Join Date: Sep 17, 2005
Location: Melbourne, Oz
Posts: 2,565
Default

Would it?
__________________
Wendy


To view links or images in signatures your post count must be 5 or greater. You currently have 0 posts.
Reply With Quote
  #5  
Old 2007-11-19, 6:38pm
LyndaJ's Avatar
LyndaJ LyndaJ is offline
Senior Member
 
Join Date: May 21, 2006
Location: Cincinnati
Posts: 2,807
Default

It would neutralize the acid so it wouldn't corrode your pipes, but the fluoride in it is the problem. We used to use it to superclean lab glassware in college, and there were lots of rules and regulations about its disposal.
__________________
Lynda
Cheetah, 5 lpm and 7lpm conc/generator (8-9 psi), natural gas (booster), started 11/06
"The time you enjoy wasting is not wasted time." -- Bertrand Russell
Reply With Quote
  #6  
Old 2007-11-19, 6:39pm
Judi_B's Avatar
Judi_B Judi_B is online now
.
 
Join Date: Sep 08, 2005
Location: Mt. Pleasant, South Carolina
Posts: 1,323
Default

Do NOT dump baking soda in the jar! You would get volcano type action and spattering. How much do you need to dispose of? I can probably come up with a safe way to neutralize it. Etch All Dip-n-Etch is a 20% solution of ammonium bifluoride.
__________________
Judi
Reply With Quote
  #7  
Old 2007-11-19, 7:00pm
Judi_B's Avatar
Judi_B Judi_B is online now
.
 
Join Date: Sep 08, 2005
Location: Mt. Pleasant, South Carolina
Posts: 1,323
Default

Here is a link to the material safety data sheet for Etch All cream. I couldn't find one for the liquid, but it would be very similar:
http://www.alpineglass.com/shop/imag...lCreamMSDS.pdf

The disposal section states that moderate amounts can be flushed down the sanitary sewer system with plenty of water - flush with water or neutralize with lime.

I would make a saturated solution of baking soda in water about twice the volume of the etch all (just keep dumping baking soda into the water until it doesn't dissolve anymore). Wear eye protection and gloves. Slowly add the etch-all to the baking soda solution a little at a time. It will fizz and bubble. When it's all neutralized you can pour in down the drain slowly with lots of water.
__________________
Judi
Reply With Quote
  #8  
Old 2007-11-19, 11:54pm
Chuckie's Avatar
Chuckie Chuckie is offline
Looking for my waistline
 
Join Date: Sep 13, 2005
Location: Greer, SC
Posts: 3,025
Default

You probably don't want to flush the stuff into your system if you are on a septic tank.
Reply With Quote
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump




All times are GMT -7. The time now is 11:39am.


Powered by vBulletin® Version 3.7.5
Copyright ©2000 - 2018, Jelsoft Enterprises Ltd.
Your IP: 54.196.190.32