testing for soap
#1
04-03-2009, 09:41 AM
Join Date: Jan 2009
Location: Yucaipa, CA.
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testing for soap
Is there an easy way to test for soap? I read that you fill a jar with 1/3 bio, 1/3 water and shake, I let it settle and the bio is clear but the water is cloudy and has stayed cloudy for a week now. I am searching for bromo-blue and will do the chemical test for soap but there again, there are differant ways to do it. One way involves using scales and the other doesn't. The sixty four thousand dollar question is--if you have too much soap, what causes it and what do you do about it.
Dave
Dave
#2
04-03-2009, 10:24 AM
Post Fiend
Is there an easy way to test for soap? I read that you fill a jar with 1/3 bio, 1/3 water and shake, I let it settle and the bio is clear but the water is cloudy and has stayed cloudy for a week now. I am searching for bromo-blue and will do the chemical test for soap but there again, there are differant ways to do it. One way involves using scales and the other doesn't. The sixty four thousand dollar question is--if you have too much soap, what causes it and what do you do about it.
Dave
Dave
This is the proper way to test for soap: Testing for Soap in Unwashed Biodiesel and Glycerol - Collaborative Biodiesel Tutorial
If you have questions this is the place to go for most answers: Welcome - Collaborative Biodiesel Tutorial Website
Soap is caused by water in the oil. MOST water will settle out with a little heat, and time. Some water will remain, which will combine with some of the catylist to form soap. I use the Magnesol drywash system, so I don't add any washwater to my bio. I recover the excess methanol from my bio which causes the soap to fall out of suspension, then I filter out the soap.
