Home Cosmetic Science Talk Formulating How would I calculate amount by weight, of a powder in a liquid

  • How would I calculate amount by weight, of a powder in a liquid

    Posted by Jwalter007 on July 14, 2017 at 7:22 pm

    I need to add .2% of a color powder to an amount of liquid.
    How would I calculate the amount, in grams, of the color powder that would be required to go into 8oz of a liquid.
    Thank you.

    markbroussard replied 6 years, 8 months ago 4 Members · 4 Replies
  • 4 Replies
  • belassi

    Member
    July 14, 2017 at 8:52 pm

    convert ounces to grams then multiply by 0.002

  • drbobverdient-biz

    Member
    July 14, 2017 at 11:09 pm

    You need to know the specific gravity/density of the liquid to convert volume in ounces to grams and use above math.

  • Jwalter007

    Member
    July 17, 2017 at 2:26 pm

    Great.
    The liquid is milk
    I found a website that lists the weight of 8oz of milk as 245g.
    In searching, I learned that the specific density of milk changes with temp.
    So I assume I could actually just weigh the 8oz of milk and multiply that by .002…

    Thank you both.
    Jason

  • markbroussard

    Member
    July 18, 2017 at 2:05 am

    Yes, measure out 8oz of milk and weigh it.

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