Phosphoric Acid 75% Dosage Rate Help Needed?

Discussion in 'Grain, Hops, Yeast & Water' started by Saisonator, Jan 11, 2019.

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  1. Jan 11, 2019 #1

    Saisonator

    Saisonator

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    Hi, I wondered if anybody has the dosage rates for removing alkalinity CaCO3, using 75% Phosphoric Acid.
    Thanks
     
  2. Jan 11, 2019 #2

    strange-steve

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    I think from Bru'n Water 0.1ml/L removes about 60ppm alkalinity.

    If you have the KH test kit it might be worth testing that to confirm.
     
  3. Jan 11, 2019 #3

    Saisonator

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    Thanks Steve, I will try reducing my 170 ppm water with 0.2ml/L phosphoric acid. Will do a 5 Litre sample with 1 ml of phosphoric acid and see what I get.

    I will be using Brewers Friend water calculator so this is really just to test my acid and confirm it is of an accurate concentration.
     
  4. Jan 11, 2019 #4

    Argentum

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    I don't know if this will be of any help here, but at somewhere right near 73.5% concentration, Phosphoric Acid can quite effectively use data commonly seen for 88% Lactic Acid. At 75% you are not far off from this.

    Likewise, Phosphoric Acid at 68% can utilize data seen for 80% Lactic Acid.
     
    Last edited: Jan 11, 2019
  5. Jan 11, 2019 #5

    Saisonator

    Saisonator

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    Thanks that roughly tallies up with Steves 0.1ml/L removing 60ppm.
     

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