nimbus8 - 27-5-2013 at 13:42
Hey everyone, so in my glassware there are several unknown contaminates and some unknown plasticizers.(long story dont ask not worth talking about)
Is there any universal cleaning method to guarantee removal of all of the contaminates? Preferably it becomes so clean that it is foodsafe.
Would a strong oxidative cleaner work like hydrogen peroxide or bleach?
papaya - 27-5-2013 at 14:00
Combining washes with several different methods? Easier to try than ask..
nimbus8 - 27-5-2013 at 14:03
But theres no guarentee that it will remove absolutely everything.
What do people do in laboratories when dealing with glassware with an unknown contaminate?
Wizzard - 27-5-2013 at 14:20
Is it toxic? I clean my dirtiest stuff with fire (600*C), 300*C sulfuric, then fire again, then a round or two in the dishwasher.
I don't work with much really toxic stuff, though. My worst clean job was the plant matter oils which burned into and out of some glassware. Took many
rounds of fire and sulfuric. But it's perfectly clean now.
nimbus8 - 27-5-2013 at 14:31
No none of it is toxic, it is all plant and plastic residues, but i want to get it so that it can be used for food safe purposes if need be.
binaryclock - 27-5-2013 at 17:45
600c fire, 300c sulfuric??? Wow.. I just rinse my stuff with water and acetone :p
papaya - 28-5-2013 at 01:01
Once I cleaned very sticky oil-rubber like dirt which seemed impossible to remove with NaOH dissolved into bleach - even without heating.