Mixing a 5% solution?

Discussion in 'Color: Film, Paper, and Chemistry' started by HumbleP, Jan 19, 2013.

  1. HumbleP

    HumbleP Member

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    Hi,
    I need to make a 5% solution of Sodium Thiocyanate.
    I have Sodium Thiocyanate 98% powder.
    If anyone with chemistry experience can let me know the measurements would be much appreciated.
    I looked up how to make a solution and quickly got confused.

    Many thanks,
    Peter
     
  2. Bruce Osgood

    Bruce Osgood Membership Council

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    To make a 5% solution dissolve 5g of substance with Isopropyl alcohol to make 100 mL. You have 100mL of 5% solution.
     
  3. HumbleP

    HumbleP Member

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    Thanks for the reply. So just to confirm...
    I'm making the solution as part of a C-41 Bleach recipe I'm mixing:
    (Pot. Ferricyanide 90g, Pot. Bromide 20g, diSodium Phosphate 6.8g, Sod. Thiocyanate 5% Solution + Water to 1 litre)

    So is it okay to include the Isopropyl alcohol to this mix?
     
  4. Photo Engineer

    Photo Engineer Subscriber

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    Thiocyanate will not dissolve in i-propyl alcohol. Use water instead.

    PE
     
  5. HumbleP

    HumbleP Member

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  6. Bruce Osgood

    Bruce Osgood Membership Council

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    There you go. I tried.