Best way to handle bromine + methanol etchant?

[MetaStable14]

Good evening all,

I recently acquired materials necessary to etch one of the alloys my company works with. These materials can be quite dangerous (bromine and methanol). I have a functioning fume hood to work with but what I don't know how to do is dispose of the used etchant. My company environmental health and safety guy has not been very helpful on this topic yet. I'll apply a small amount of the etchant to a sample but then how do I properly clean off the sample? I would think it is near impossible to capture that run-off in a waste container. Do I just rinse those tiny amounts down the drain? I've handled hazardous acids before but this is my first time working with bromine and I want to be safe.

Thanks for any and all help.

 

[EdStainless]

What Br level are you talking about? And what is the actual amount (mg or g)?
What Br compound are you working with?
If it is a small amount rinse it down the drain.


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P.E. Metallurgy, Plymouth Tube

 

[dbooker630]

You may want to confirm whether your lab sink drains to a sanitary or a storm sewer. States may have differing regulations, but our state EPA ordered us to replumb so that rinsing from etchants goes to sanitary and not the storm sewer.