Hello All, Thanks to Dave Freeman for the acid disposal idea. Here are a few more ideas.
It is very important that you dilute the acid with LOTS of water, a ratio of 10 parts water to 1 part acid might be a good place to start. The more water you use, the better. If you add baking soda to undiluted acid, you will get a near explosive reaction, so MAKE SURE you dilute the acid with enough water. In addition to wearing eye protection, wear rubber gloves, old shoes and old long pants. In the event you spill some of the acid solution, you don't want to ruin your clothes. A rubberized or plastic apron like the ones sold at lapidary stores is a good idea too.
Another thing. Don't dump an entire container of the baking soda into your acid solution all at once. Add a little bit at a time to give you an idea of how much the combination will react and expand.
Best, John Gwiliam
At 01:26 PM 10/17/03 -0600, David Freeman wrote:
Dear Harlan, List;
One can dilute acids with baking soda. Always wear eye protection and glasses, and do it in a well ventilated space, or better yet, out of doors.
One of my favorite environmental phrases is "the solution to polution is dilution" which in this case....well, my muratic acid for cleaning the calache off my petrified wood, etc, is encouraged by the local city admin. guy as it helps clean the nasty alkaline deposits off the sewer pipes. Our water, as is most water in the western US has hard stuff in it that gets disolved by a little acid now and then.
dilute the water with acid, and add baking soda, done deal. Check with a ph strip, and flush.
Dave F.
harlan trammell wrote:
call a local college and ask their chemistry department head what THEY do w/ used up lab chemicals.
>From: [EMAIL PROTECTED] >To: [EMAIL PROTECTED] >Subject: [meteorite-list] nitric acid disposal >Date: Thu, 16 Oct 2003 16:03:36 EDT > >A while back I thought I'd try my hand at doing some iron-etching. After a >few less than impressive attempts, and with the increasing realization that >nitric acid is tremendously nasty stuff, I'm now wanting to get rid of the >(almost) gallon I have. My local city Household Hazmat Disposal Center won't deal >with it, as it's not "household" waste, and the Business Hazmat Disposal Center >won't deal with it because I'm not a business. > >I'm wondering if I could carefully effect some sort of dilution-process and >dispose of it myself, and I welcome any advice or suggestions, on-list or off. >Thanx.... > > Gregory
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