Getting rid of clear etchant

[Bill_F]

OK so being the good citizen I am, I head down to the local dump to get rid of my PCB etchant in the correct way. I find out that they take all kinds of chemicals but not this one. So I ask what can I do with it. He tells me I'll have to call out a chemical removal company and that will cost big money.
Typical, threaten you with legal action if you put stuff like this in with the rest of the rubbish THEN make it impossible to get rid of it any other way.
Anyway, I know that baking soda works to neutralize and solidify Ferric Chloride allowing you to put it out with the rest of the rubbish but what about this clear stuff? I have about a 1 1/2 liters of the stuff. Any suggestions.

Thanks,
Bill

[AL]

Bill,

What is the etchant called?  Not Ferric Chloride?  Find out exactly what chemicals are in the etchant then look up the MSDS sheet on line.   If you don't know - that stands for Material Safety Data Sheet.  These should contain all the information you need.  Just type in the name of the chemical followed by MSDS in Google and you should get some hits.  If you need help let me know and I'll see if I can find some info for you.

Another thing to check is for local Household Hazardous Waste disposals.  Some big cities have these on a regular basis to get rid of commom household chemicals.  They are usually in a large parking lot somewhere that can facilitate a good deal of traffic.  These are free to the public.

AL

[Paul Perry (Frostwave)]

http://www.uwm.edu/Dept/EHSRM/HAZMAT/SOPoxidizer.html

well, here's one source says you can flush it OK. (assuming it is ammonium or sodium persulphate). Thre's doubtless enough organic material down there to reduce it back to sulphate

[downweverything]

yeah i thought you could flush it, but puting in the sink was not recommended because it can start to etch the pipes, not to mention metal sinks and drains.  i really dont know though

[Bill_F]

http://www.uwm.edu/Dept/EHSRM/HAZMAT/SOPoxidizer.html

well, here's one source says you can flush it OK. (assuming it is ammonium or sodium persulphate).

I just checked and it is sodium persulphate

Thanks everyone for your help.

Bill