[meteorite-list] nitric acid disposal
From: Howard Wu <freewu2000_at_meteoritecentral.com>
Date: Thu Apr 22 10:28:31 2004 Message-ID: <20031017214530.17638.qmail_at_web60003.mail.yahoo.com> --0-1221113269-1066427130=:15775 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit I have given this some thought last night and have come up with a better protocaol for Nitric acid disposal. 1) Best to turn fuming nitric acid to nitric acid 5% or less first adding acid to water as we all know. 2) Baking soda or washing soda does fizz alot then that leaves sodium residue which isn't bad down the drain if that is where it's going. 3) Another inexpensive alkali is household ammonia NH4OH. Adding diluted nitric acid to an excess amount of dilute ammonia (carefully as all these reactions are exothermic.) woulld leave you with an ammonium nitrate solution( with ammonia test pH to alkaii )that is commonly used as fertilizer. This can be dumped on the ground around plants. I haven't tried this but it is theoretically sound. Still it is best to use up the acid like for processing gold in black sands. Best idea for the brave: and a little sulfuric acid then pour on sawdust or cotton. Use to make model of your own impact crater. Nitric acid will totally gone. Howard Wu Howard Wu John Gwilliam <jkg_at_theriver.com> wrote: 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: Sharkkb8_at_aol.com >To: >> meteorite-list_at_meteoritecentral.com >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 >> >> >>------------------------------------------------------------------------ >>Add MSN 8 Internet Software to your current Internet access and enjoy >>patented spam control and more. Get two months FREE! >> >>______________________________________________ Meteorite-list mailing >>list Meteorite-list_at_meteoritecentral.com >>http://www.pairlist.net/mailman/listinfo/meteorite-list > > > > >______________________________________________ >Meteorite-list mailing list >Meteorite-list_at_meteoritecentral.com >http://www.pairlist.net/mailman/listinfo/meteorite-list ______________________________________________ Meteorite-list mailing list Meteorite-list_at_meteoritecentral.com http://www.pairlist.net/mailman/listinfo/meteorite-list --------------------------------- Want to chat instantly with your online friends? Get the FREE Yahoo!Messenger --0-1221113269-1066427130=:15775 Content-Type: text/html; charset=iso-8859-1 Content-Transfer-Encoding: 8bit <DIV> <DIV>I have given this some thought last night and have come up with a better protocaol for Nitric acid disposal.</DIV> <DIV> </DIV> <DIV>1) Best to turn fuming nitric acid to nitric acid 5% or less first adding acid to water as we all know.</DIV> <DIV> </DIV> <DIV>2) Baking soda or washing soda does fizz alot then that leaves sodium residue which isn't bad down the drain if that is where it's going.</DIV> <DIV> </DIV> <DIV>3) Another inexpensive alkali is household ammonia NH4OH. Adding diluted nitric acid to an excess amount of dilute ammonia (carefully as all these reactions are exothermic.) woulld leave you with an ammonium nitrate solution( with ammonia test pH to alkaii )that is commonly used as fertilizer. This can be dumped on the ground around plants. </DIV> <DIV> </DIV> <DIV>I haven't tried this but it is theoretically sound.</DIV> <DIV> </DIV> <DIV>Still it is best to use up the acid like for processing gold in black sands.</DIV> <DIV> </DIV> <DIV>Best idea for the brave: and a little sulfuric acid then pour on sawdust or cotton. Use to make model of your own impact crater. Nitric acid will totally gone.</DIV> <DIV> </DIV> <DIV>Howard Wu</DIV> <DIV> </DIV> <DIV>Howard Wu<BR><BR><B><I>John Gwilliam <jkg_at_theriver.com></I></B> wrote:</DIV> <BLOCKQUOTE class=replbq style="PADDING-LEFT: 5px; MARGIN-LEFT: 5px; BORDER-LEFT: #1010ff 2px solid"><BR>Hello All,<BR>Thanks to Dave Freeman for the acid disposal idea. Here are a few more ideas.<BR><BR>It is very important that you dilute the acid with LOTS of water, a ratio <BR>of 10 parts water to 1 part acid might be a good place to start. The more <BR>water you use, the better. If you add baking soda to undiluted acid, you <BR>will get a near explosive reaction, so MAKE SURE you dilute the acid with <BR>enough water. In addition to wearing eye protection, wear rubber gloves, <BR>old shoes and old long pants. In the event you spill some of the acid <BR>solution, you don't want to ruin your clothes. A rubberized or plastic <BR>apron like the ones sold at lapidary stores is a good idea too.<BR><BR>Another thing. Don't dump an entire container of the baking soda into your <BR>acid solution all at once. Add a little bit at a time to give you an idea <BR>of how much the combination will react and expand.<BR><BR>Best,<BR>John Gwiliam<BR><BR><BR>At 01:26 PM 10/17/03 -0600, David Freeman wrote:<BR>>Dear Harlan, List;<BR>>One can dilute acids with baking soda. Always wear eye protection and <BR>>glasses, and do it in a well ventilated space, or better yet, out of doors.<BR>>One of my favorite environmental phrases is "the solution to polution is <BR>>dilution" which in this case....well, my muratic acid for cleaning the <BR>>calache off my petrified wood, etc, is encouraged by the local city admin. <BR>>guy as it helps clean the nasty alkaline deposits off the sewer <BR>>pipes. Our water, as is most water in the western US has hard stuff in it <BR>>that gets disolved by a little acid now and then.<BR>>dilute the water with acid, and add baking soda, done deal. Check with a <BR>>ph strip, and flush.<BR>>Dave F.<BR>><BR>>harlan trammell wrote:<BR>><BR>>>call a local college and ask their chemistry department head what THEY do <BR>>>w/ used up lab chemicals.<BR>>><BR>>> >From: Sharkkb8_at_aol.com >To: <BR>>> meteorite-list@meteoritecentral.com >Subject: [meteorite-list] nitric <BR>>> acid disposal >Date: Thu, 16 Oct 2003 16:03:36 EDT > >A while back I <BR>>> thought I'd try my hand at doing some iron-etching. After a >few less <BR>>> than impressive attempts, and with the increasing realization <BR>>> that >nitric acid is tremendously nasty stuff, I'm now wanting to get <BR>>> rid of the >(almost) gallon I have. My local city Household Hazmat <BR>>> Disposal Center won't deal >with it, as it's not "household" waste, and <BR>>> the Business Hazmat Disposal Center >won't deal with it because I'm not <BR>>> a business. > >I'm wondering if I could carefully effect some sort of <BR>>> dilution-process and >dispose of it myself, and I welcome any advice or <BR>>> suggestions, on-list or off. >Thanx.... > > Gregory<BR>>><BR>>><BR>>>------------------------------------------------------------------------<BR>>>Add MSN 8 Internet Software to your current Internet access and enjoy <BR>>>patented spam control and more. Get two months FREE! <BR>>><HTTP: 2746??PS="" 8HMAENUS g.msn.com> <BR>>>______________________________________________ Meteorite-list mailing <BR>>>list Meteorite-list_at_meteoritecentral.com <BR>>>http://www.pairlist.net/mailman/listinfo/meteorite-list<BR>><BR>><BR>><BR>><BR>>______________________________________________<BR>>Meteorite-list mailing list<BR>>Meteorite-list@meteoritecentral.com<BR>>http://www.pairlist.net/mailman/listinfo/meteorite-list<BR><BR><BR><BR>______________________________________________<BR>Meteorite-list mailing list<BR>Meteorite-list_at_meteoritecentral.com<BR>http://www.pairlist.net/mailman/listinfo/meteorite-list</BLOCKQUOTE></DIV><p><hr size=1><font face="Arial" size="2">Want to chat instantly with your online friends? <a href="http://uk.rd.yahoo.com/mail/tagline_messenger/*http://uk.messenger.yahoo.com/"><b>Get the FREE Yahoo! Messenger</b></a></font> --0-1221113269-1066427130=:15775-- Received on Fri 17 Oct 2003 05:45:30 PM PDT |
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