Hi there fellow biodiesel makers,
I was having a chat with a pharmacist the other night about some of the little issues faced when making biodiesel, particularly regarding what I guess is the "end point" of the titration - when the turmeric goes red and stays red. I've found that if I keep swirling my titration for long enough, enough FFAs come out of the oil and sends the Turmeric/Metho solution back towards yellow.
Can somebody please clarify whether this is on the right track for me?
As I get closer to reaching the end point of the reaction, it would seem that it takes lesser amounts of KOH or NaOH to reach the end point of the titration.
The pharmacist suggested using coloxyl (a laxative) as an emulsifier and I was wondering whether it would be possible to use the following steps to help with titration accuracy:
A) Take quantity of turmeric/metho solution
B) Put in some Coloxyl
C) Use some 0.1% KOH solution to return this concoction towards pH 7
D) Put in 1mL of WVO
E) Titrate as per normal
Would those of you with enough foresight in chemistry be able to tell me whether this is feasible? Would Coloxyl help release FFAs from the WVO?
Best regards, Steve.
I was having a chat with a pharmacist the other night about some of the little issues faced when making biodiesel, particularly regarding what I guess is the "end point" of the titration - when the turmeric goes red and stays red. I've found that if I keep swirling my titration for long enough, enough FFAs come out of the oil and sends the Turmeric/Metho solution back towards yellow.
Can somebody please clarify whether this is on the right track for me?
As I get closer to reaching the end point of the reaction, it would seem that it takes lesser amounts of KOH or NaOH to reach the end point of the titration.
The pharmacist suggested using coloxyl (a laxative) as an emulsifier and I was wondering whether it would be possible to use the following steps to help with titration accuracy:
A) Take quantity of turmeric/metho solution
B) Put in some Coloxyl
C) Use some 0.1% KOH solution to return this concoction towards pH 7
D) Put in 1mL of WVO
E) Titrate as per normal
Would those of you with enough foresight in chemistry be able to tell me whether this is feasible? Would Coloxyl help release FFAs from the WVO?
Best regards, Steve.
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