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  1. Replies
    11
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    7,097

    Re: Titration error?

    @tilly
    There appears to be confusion here.....I am not TRYING to do a 2 stage process. I have to because I am not getting full conversion - hence the reprocessing.

    I am just trying to get a full...
  2. Replies
    11
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    7,097

    Re: Titration error?

    @tilly

    Perhaps a thimble-full........

    I have titrated using Bromophenol and turmeric........3.5 appears to be the constant.

    The oil does not appear to have any water present before...
  3. Replies
    11
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    7,097

    Titration error?

    What am I doing incorrectly?

    Oil titrates at 3.5

    10L cottonseed (heated to 50c)
    110g KOH (3.5 + 7 (base))
    2L methanol
    Stirred via pump for one hour

    10/90 test produces a lot of dropout!?
  4. Replies
    37
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    21,732

    2 Stage process - dropout calculation

    Can anyone clarify the directions in Steps 5 & 6 of the following please, specifically the "unprocessed oil volume x base" part.....I am unsure of the calculation.

    As I am very new to the 2 stage...
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    3
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    2,506

    Re: 3/27 Test failure?

    Wes,
    I suspect that it was wet oil. I now just recalled that 4 of the 7 drums I collected had no lids! I have now reprocessed the batch, water washed and air dried using a bubbler. All is good!.......
  6. Replies
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    2,506

    3/27 Test failure?

    Hello all...I'll keep it short...

    10L (heated to 55c) Oil titrated at 3.5 (say 4) Titration test using 1mL oil, 27 mL methanol and 5 drops phenolphthalein and 1mL KOH/ 1L distilled water (total...
  7. Replies
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    2,341

    Oops!.....Not enough KOH!

    Very Newbie here.

    Oil titrated at 20g/l......yes, bad I know!
    170ml methanol
    1L WVO (cottonseed)

    500ml test batch perfect according to 27/3 & specific density at 0.850

    Attempted the...
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