Hi All,
I got some WCO from a take-away shop only a couple of sample bottles and looks like it may be no good.
The WCO appears to be shortning/animal fat and soildifes at room temperature, comes in cardboard box with red writing. Oil is changed every week according the the owner, wehn I was there the previous Friday they were changing it, and it was changed this Friday.
Made up the titration fluid 1g KOH to 1lt of demineralised water OK,
did a blank tritation like Tilly showed us at Peda's, 10ml Metho, end of a tooth pick of Tumeric and mixed, 1ml of the WCO microwave until first bubble, mixed with chopstick and dropped in the titrate solution it took
9ml. Caluclated it out Base of 7.8 (90% KOH)+ 9grams = 16.8 g seemed like a lot? Did a 1 lt test batch with 220ml methonal no good at all.
Did another tritation using Phenol Red (from pool shop) this measured at 8ml. So my thought is the oil my be no good.
Any help would be appreciated or am I doing something wrong.
Regards,
John H
I got some WCO from a take-away shop only a couple of sample bottles and looks like it may be no good.
The WCO appears to be shortning/animal fat and soildifes at room temperature, comes in cardboard box with red writing. Oil is changed every week according the the owner, wehn I was there the previous Friday they were changing it, and it was changed this Friday.
Made up the titration fluid 1g KOH to 1lt of demineralised water OK,
did a blank tritation like Tilly showed us at Peda's, 10ml Metho, end of a tooth pick of Tumeric and mixed, 1ml of the WCO microwave until first bubble, mixed with chopstick and dropped in the titrate solution it took
9ml. Caluclated it out Base of 7.8 (90% KOH)+ 9grams = 16.8 g seemed like a lot? Did a 1 lt test batch with 220ml methonal no good at all.
Did another tritation using Phenol Red (from pool shop) this measured at 8ml. So my thought is the oil my be no good.
Any help would be appreciated or am I doing something wrong.
Regards,
John H
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