evaporate water when all NaCl is converted. a thin electroplate of platinum on copper is a good all around electrode. Only a few pennies worth of platinum used. I think commercially they use graphite or lead-- Nickel also comes to mind. Chemistry is an interest not a forte. I always look up before I use. See what your books your local library has on electrochemistry. Library at nearest university would be best and local library may have lending arrangement with them. hot melt glue makes a good sealer for copper fastened to whatever.
-----Original Message----- From: Martin Klingensmith [mailto:[EMAIL PROTECTED] Sent: Saturday, June 09, 2001 3:28 PM To: biofuel@yahoogroups.com Subject: RE: [biofuel] titration ph question So.. use rock salt in a fully saturated DI water solution and use what for electrodes? I'm thinking you would end up with a lot of rusty mess, and how do you extract the NaOH since it will be in the water? Thanks I will make it if I can make the process work :) -Martin Klingensmith --- kirk <[EMAIL PROTECTED]> wrote: > Salt (NaCl) and electricity yields sodium hydroxide > (NaOH) and hydrogen and > chlorine. Chlorine can be reacted with the hydrogen > to form hydrochloric > acid (HCl or muriatic acid) which can be sold to > pool maintenance, plumbers, > etc or reacted with CaCO3 (limestone or shells) to > form calcium chloride > which has uses as a de-icer etc. > Why buy when it can be made so easily? > > -----Original Message----- > From: Martin Klingensmith > [mailto:[EMAIL PROTECTED] > Sent: Saturday, June 09, 2001 2:17 PM > To: biofuel@yahoogroups.com > Subject: Re: [biofuel] titration ph question > > > Where can I get "Red Devil" lye? I can't get it > anywhere around here - and 510 grams, as long as it > is > somewhat pure, is a good price - I would think. > -Martin Klingensmith > > --- Burnett <[EMAIL PROTECTED]> wrote: > > I have had the same problems with titration. My > > digital PH meter > > (i have 2 now) have both been calibrated with a 7 > > and 10 solution. > > My Solution of 1gm caustic and 1000ml distilled > H2O > > has a PH of > > 12.2. When I put 1 ml of wvo in 99% IPA then try > to > > titrate with the > > caustic soln. I only get about 0.2ml in before I > hit > > 8.2 PH. This is > > dark brown WVO so I don't think that reading is > > right. I have done a > > test batch with 6.25grams Sodium Hydroxide and > > everything came > > out right. > > > > So my question is is the caustic soln. I made > off... > > what should the > > PH of this soln. be. > > Why don't we just measure the PH of the WVO > directly > > with digital > > PH meters? > > The Red Devil Lye runs about US 4.00 dollars for > 510 > > grams is this > > right? Can you get Sodium Hydroxide cheaper in > > another form or in > > bulk? > > > > > > At 08:14 PM 6/8/2001 +0100, you wrote: > > >Hi all. > > >Well, I thought I'd have a play about with > learning > > titration. > > >On the practical side I'm at a loss here. > > >This is what I ve done. > > >I mixed 1ml of wvo with 10ml Isopropol alcohol > > (ipa) > > >I made up a working solution of lye with > distilled > > water 1 litre and 1 gm of > > >caustic. > > >I buffered my digital ph meter at 7 and 10 > > >I'm aiming for 8.5ph after adding lye at > increments > > of 1/10th ml > > > > > >Firstly, my ipa measures 11ph > > >my distilled water about 8.4ph > > >adding lye to the mix just pushes it up. > > >What am I doing wrong now! > > >If the water is reading 8.4 this will put the lye > > concentration out. > > >Is there something wrong with my water, ipa, me? > > >Laugh a minute hey guys :O > > >Ian > > > > > > > > >Biofuel at Journey to Forever: > > >http://journeytoforever.org/biofuel.html > > >Please do NOT send "unsubscribe" messages to the > > list address. > > >To unsubscribe, send an email to: > > >[EMAIL PROTECTED] > > > > > >Your use of Yahoo! Groups is subject to > > http://docs.yahoo.com/info/terms/ > > > > > > > __________________________________________________ > Do You Yahoo!? > Get personalized email addresses from Yahoo! Mail - > only $35 > a year! http://personal.mail.yahoo.com/ > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > Please do NOT send "unsubscribe" messages to the > list address. > To unsubscribe, send an email to: > [EMAIL PROTECTED] > > Your use of Yahoo! Groups is subject to > http://docs.yahoo.com/info/terms/ > > > > --- > Incoming mail is certified Virus Free. > Checked by AVG anti-virus system > (http://www.grisoft.com). > Version: 6.0.256 / Virus Database: 129 - Release > Date: 5/31/2001 > > --- > Outgoing mail is certified Virus Free. > Checked by AVG anti-virus system > (http://www.grisoft.com). > Version: 6.0.256 / Virus Database: 129 - Release > Date: 5/31/2001 > > __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/ Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ --- Incoming mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.256 / Virus Database: 129 - Release Date: 5/31/2001 --- Outgoing mail is certified Virus Free. Checked by AVG anti-virus system (http://www.grisoft.com). Version: 6.0.256 / Virus Database: 129 - Release Date: 5/31/2001 Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
