Hello Brian et al. The standard solutions for titration are for example KOH 0,1M and KOH 0,5M which are corresponding to 5,61g and 28,05g of KOH / dm3. But the concentration of the titration solution really doesn´t matter as long as the analysis is performed correctly and that the acid number is calculated from the analysis, and that the compensation need is calculated from the acid number. Please note that NaOH has a lower mass than KOH, so the weight will be lower for the corresponding concentration. You did not say how much your sample mass was when having that result. Do that, and we will work the values out properly.
With best regards Jan Warnqvist ----- Original Message ----- From: "Brian Schneider" <[EMAIL PROTECTED]> To: <sustainablelorgbiofuel@sustainablelists.org> Sent: Tuesday, May 06, 2008 5:45 PM Subject: Re: [Biofuel] Titration > Jan, > You say that my concentration is very weak compared to the standard > solutions. Do you mean the standard solution to titrate waste oil > with, or are you just meaning weak in general? If it is weak > compared to what should be used for waste oil, what is the standard > strength? Did I miss read the information on journey to forever? > Please let me know because right now I am not going to use the waste > oil that I have because of the high titration rate and am going to > have to find a new source. > Thanks > Brian Schneider > > On May 6, 2008, at 11:07 AM, Jan Warnqvist wrote: > >> You should know that your concentration is very weak compared to the >> standard solutions. Your concentration is 0,025M / dm3, and due to its >> weakness, it will almost always produce high titration values. 1 ml >> of the >> solution assuming that your sample mass is 10,0 g corresponds to an >> acid >> number of 0,1, which is normal for refined oils. Consequently is 5 ml >> corresponding to 0,5 for acid number assuming that your sample mass >> is 10,0 >> g. 0,5 is a very good value for virgin oils. But, if your sample >> mass is >> 1,0g, then the values will become 10 times higher, of course. >> >> With best regards >> Jan Warnqvist >> ----- Original Message ----- >> From: "Brian Schneider" <[EMAIL PROTECTED]> >> To: <sustainablelorgbiofuel@sustainablelists.org> >> Sent: Tuesday, May 06, 2008 1:37 PM >> Subject: Re: [Biofuel] Titration >> >> >>> I am using the 1 gram per 1000 mL or .1% of NaOH. >>> I have tried mixing it several ways, 1 gram in 1 liter and also tried >>> Keith's suggestion of 5 grams in .5 L as stock then using 5 mL of >>> that in 45 mL of distilled water for the working solution. >>> Both give the same result. >>> What should New virgin oil titrate out as? or does it? >>> Thanks for the help >>> Brian Schneider >>> >>> On May 6, 2008, at 2:52 AM, Jan Warnqvist wrote: >>> >>>> Hello Brian et al. >>>> Which concentration of the titration solution are you using ? The >>>> figures >>>> that you stated could be correct, but only assuming that your >>>> titration >>>> solution is aimed for the purpose. >>>> >>>> Best regards >>>> Jan Warnqvist >>>> ----- Original Message ----- >>>> From: "Brian Schneider" <[EMAIL PROTECTED]> >>>> To: <sustainablelorgbiofuel@sustainablelists.org> >>>> Sent: Monday, May 05, 2008 4:35 PM >>>> Subject: [Biofuel] Titration >>>> >>>> >>>>> Hi All, >>>>> Have a quick question about titration. >>>>> I have obtained some waste oil that seems to be titrating at 12 - >>>>> 15mL. I have done this numerous times and come up with about the >>>>> same results. >>>>> That seems unusably high. So I tried to titrate new virgin oil. >>>>> When I did that it only took about .2 - .4 mL is that normal or >>>>> am I >>>>> doing something terribly wrong. >>>>> I am a little confused at this point and any help I could get would >>>>> be really appreciated. >>>>> Thanks >>>>> >>>>> Brian Schneider >>>>> -------------- next part -------------- >>>>> An HTML attachment was scrubbed... >>>>> URL: /pipermail/attachments/20080505/94b646be/attachment.html >>>>> _______________________________________________ >>>>> Biofuel mailing list >>>>> Biofuel@sustainablelists.org >>>>> http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel >>>>> >>>>> Biofuel at Journey to Forever: >>>>> http://journeytoforever.org/biofuel.html >>>>> >>>>> Search the combined Biofuel and Biofuels-biz list archives (70,000 >>>>> messages): >>>>> http://www.mail-archive.com/biofuel@sustainablelists.org/ >>>>> >>>>> >>>> >>>> >>>> _______________________________________________ >>>> Biofuel mailing list >>>> Biofuel@sustainablelists.org >>>> http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel >>>> >>>> Biofuel at Journey to Forever: >>>> http://journeytoforever.org/biofuel.html >>>> >>>> Search the combined Biofuel and Biofuels-biz list archives (70,000 >>>> messages): >>>> http://www.mail-archive.com/biofuel@sustainablelists.org/ >>> >>> -------------- next part -------------- >>> An HTML attachment was scrubbed... >>> URL: /pipermail/attachments/20080506/8d0baaf2/attachment.html >>> _______________________________________________ >>> Biofuel mailing list >>> Biofuel@sustainablelists.org >>> http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel >>> >>> Biofuel at Journey to Forever: >>> http://journeytoforever.org/biofuel.html >>> >>> Search the combined Biofuel and Biofuels-biz list archives (70,000 >>> messages): >>> http://www.mail-archive.com/biofuel@sustainablelists.org/ >>> >>> >> >> >> _______________________________________________ >> Biofuel mailing list >> Biofuel@sustainablelists.org >> http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel >> >> Biofuel at Journey to Forever: >> http://journeytoforever.org/biofuel.html >> >> Search the combined Biofuel and Biofuels-biz list archives (70,000 >> messages): >> http://www.mail-archive.com/biofuel@sustainablelists.org/ > > -------------- next part -------------- > An HTML attachment was scrubbed... > URL: /pipermail/attachments/20080506/73a19e09/attachment.html > _______________________________________________ > Biofuel mailing list > Biofuel@sustainablelists.org > http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel > > Biofuel at Journey to Forever: > http://journeytoforever.org/biofuel.html > > Search the combined Biofuel and Biofuels-biz list archives (70,000 > messages): > http://www.mail-archive.com/biofuel@sustainablelists.org/ > > _______________________________________________ Biofuel mailing list Biofuel@sustainablelists.org http://sustainablelists.org/mailman/listinfo/sustainablelorgbiofuel Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Search the combined Biofuel and Biofuels-biz list archives (70,000 messages): http://www.mail-archive.com/biofuel@sustainablelists.org/
