WVO & BIODIESEL
TEST KITS

All of the new kit components are in now and the kits are ready for immediate shipment. I have replaced the 125mL Erlenmeyer flask with a 250mL Erlenmeyer flask. And replaced the two small funnels with one larger one.

Please read the soap test procedure at Soap Test.
After reading that my simplified procedure will make more sense.

I use an Ohaus 3 beam scale.
1- put 250mL Erlenmeyer flask on scale
2- add about 100mL of Iso Alcohol (Red bottle of HEET) and 12 drops of Bromophenol Blue
3- carefully weight the flask, alcohol, and Bromophenol Blue
4- add 10 grams to the weights
5- add 10mL of biodiesel, then slowly add more until the scale is exactly balanced. (10mL weighs about 8grams. You can put in 10mL quickly and save the slow adds for the last bit.)
6- move all weights to the max position (You are done weighing and now need a stable platform)
7- SLOWLY add .01N HCL keeping track of how much you add. Swirl the flask between additions
8- when the color just changes to yellow and stays there you are done adding
9- do the math

Since I use 10g samples it simplifies to: ppm soap = mL of 0.01N HCL*304.4

Delux Titration and Soap Test Kit w/o Scale
~~$70.00~~ $65.00 On Sale!
Deluxe Titration and Soap Test Kit includes almost everything you need to perform titrations and soap tests. The Lucky 11 Gem scale has been removed.

It includes:
1ea lightly used 250 mL Erlenmeyer Flask
3ea 100 mL Graduated Beakers
1ea 1000 mL Graduated Cylinder
1ea 250 mL Graduated Cylinder
1ea funnel
5ea 3 mL disposable graduated pipettes (1 mL graduated 2 ml in bulb)
5ea 1 mL disposable graduated pipettes (3 mL graduated 2 ml in bulb)
3ea 10 mL Polypropylene syringe
3ea 5 mL Polypropylene syringe
Phenolphthalein, 50+ mL in a 59 mL dropper bottle
Bromophenol Blue, 50+ mL in a 59 mL dropper bottle
1ea empty dropper bottle for your Lye solution (Size may vary)
1ea 1 liter Nalgene bottle to store your bulk lye solution.

In addition you will need:
1 gram of the Lye, NaOH or KOH, you will be using to process your biodiesel.
2 bottles of IsoHeet (Red bottle) - available from WalMart for around $1.28 each.
2 gallons of distilled water - available from WalMart for around $.67 each.
Samples of your filtered dry Used Cooking Oil (UCO).
Samples of your demethanoled, dry, unwashed biodiesel.
Muriatic Acid - available from hardware stores and Tractor Supply Company for around $3.67 for a quart.

Centrifuge Tube, 250mL, for 3/27 (25/225) Jan Warnqvist Test
$3.00
Made by Corning. Polypropylene, 250 mL Centrifuge Tubes, with a Plug Seal Cap. They look like the skinny ones on the right. They are in stock and ready to ship. The smallest mark is at 1mL. The next is at 5mL and there are dash marks every 5mL from there.

I went to the Cole-Parmer website and checked material compatability between polypropylene and the 225mL of methanol that will go into these. It came back as an excellent match. They do not list biodiesel, but there will only be 25mL of it and it will be mixed in with 225mL of methanol so it should be fine.

Jan Warnqvist 3/27 thread.

WVO & BIODIESEL TEST KITS

WVO & BIODIESEL
TEST KITS