[Biofuel] NaOH

2005-06-13 Thread Marc Arends
Hello all, I have a questions before i want to start with making my first test batch with the single stage method. I bought NaOH from a hardware store, but it looks white so it is not pure. Does somebody know how i can mesure the moisture content of this NaOH so i can compensate for all

[Biofuel] theoretical and practical questions

2005-07-17 Thread Marc Arends
Hello All, I am a beginner with biodiesel and i did a lot of reading the last few months and i did quite some test batches with unused sunflower oil with the single stage method (as is advised). Now i have some practical questions and theoretical questions. Practical questions: When you are

[Biofuel] Biodiesel turning acid

2005-07-26 Thread Marc Arends
Hello, I made a testbatch with clean sunfloweroil and first quality test was good. I washed the solution with water and let it settle for a week. i did this 3 times and then i filtered the biodiesel. Yhe biodiesel looked crystal clear. I tested the pH and it was 2.5! What happend here? How is

[Biofuel] Re: Biodiesel turning acid

2005-07-26 Thread Marc Arends
The pH was tested with a digital pH tester. I also measured the pH of the last washing-water and that was about 7 so i think that the biodiesel is ok now. Thanks for all the repleys, Marc How did you measured the pH? Citando Marc Arends [EMAIL PROTECTED]: Hello, I made a testbatch

[Biofuel] biodiesel from linoleic acid

2005-08-03 Thread Marc Arends
Hello, For the last 2 weeks i have been trying to make biodiesel from WVO with 60% linoleic acid. I did many many test batches but never i had a good quality test as discribed here http://journeytoforever.org/biodiesel_vehicle.html#quality It never separates within 30 minutes but after a

[Biofuel] Iodine value, polymerisation and oxidation

2005-08-21 Thread Marc Arends
Hello, My WVO consist of 80% polyunsaturated oil and i calculated that this has an iodine value of 150. But when i look at the table National standards for biodiesel, found here http://journeytoforever.org/biodiesel_yield2.html#biodstds you see the iodine value of BD should be on avarage

Re: [Biofuel] Isopropyl Alcohol

2005-08-31 Thread Marc Arends
You can also use a 50:50 v/v mixture of ethanol and diethylether. We use this at my work every day and it is ok. Marc Arends original message: Hi I seem to be having trouble sourcing Isopropyl Alcohol for titration, I've tried pharmacist in my area (kent UK) but none seem to have it. Can