How to Use Turmeric to Test PH

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Turmeric can be used to find out if a liquid or solution is acidic or alkaline (basic). Acidity and alkalinity are measured using a logarithmic scale referred to as pH. To test pH, turmeric is used to make test paper strips. The liquid being tested can be blotted onto a paper strip using a dropper, or the strip can be dipped into the liquid. With a few basic household materials, turmeric paper test strips can be easily made in your own home.

Things You'll Need

  • Paper
  • Ground turmeric
  • Distilled water
  • Coffee filters
  • Jar
  • Ceramic bowl
  • Boil one ounce of coarse ground turmeric in a 1/2 pint of distilled water. Boil for 30 minutes.

  • Pour the turmeric water through a coffee filter to strain.

  • Fill a ceramic bowl with the turmeric water.

  • Submerge paper into the turmeric water. Any kind of soft, absorbent paper will work, from coffee filters to drawing paper. Make sure the paper is evenly coated.

  • Hang the paper to dry. Let the paper dry in an area where there are no vapors or fumes of any kind.

  • Cut the paper into thin strips.

  • Test your liquid or solution for pH. The strip will turn red in the presence of acids and will stay yellow in the presence of bases.

  • Store paper strips in sealed, glass jars.

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