Home Forums Growing Spirulina How to substitute k2hpo4 and nano3

This topic contains 2 replies, has 3 voices, and was last updated by  sphyrna 3 months, 2 weeks ago.

  • Author
  • #2541


    Hi…i’m Faisal from Indonesia.
    I’m a newbie in growing spirulina.
    In my country it’s expensive to buy k2hpo4 and nano3 for the zarrouk medium, but I can easily find kh2po4 and kno3.
    How to substitute 0.5 gram/liter k2hpo4 with kh2po4 (how much gram/liter)?
    And how to substitute 2.5 gram/liter NaNO3 with KNO3 (how much gram/liter)?

    It is safe to consume the spirulina if I use fertilizer as the medium source?

    Thank you

  • #2548


    Hi! I am Soya,if you still unable to find any solution to your question you can search in google and from other sites, but if you have any problem in McAfee antivirus and want instant support, i have some sites that they will definitely help you regarding Antivirus.visit at below link for McAfee
    help Mcafee Customer Service and mcafee helpline

  • #2830


    1 – K2HPO4 = 173,9 mol/gr, PO4 = 94,9 mol/gr==> PO4 %54,57 = 0,5 gr x 54,57 / 100= 0,27 gr-PO4
    2 – KH2PO4 = 135,9 mol/gr, PO4 = 94,9 mol/gr==> PO4 %69,83 = 0,39 gr x 69,83 / 100=0,27 gr-PO4

    so calculate the other, NaNO3.

You must be logged in to reply to this topic.