Purpose

To describe the preparation of 2N NaOH for use in adjusting pH.

References

None

Materials

  • NaOH
  • DI Water

Equipment

  • Stir bar and Stir plate
  • Clean 500 ml Bottle with cap
  • 500 ml Graduated cylinder
  • Balance and weigh boats

 

Procedure

  1. Weigh 40 g NaOH and add to a clean 500 ml bottle.
  2. Add 500 ml DI water and a stir bar. Stir on a stir plate for 30 minutes or until solids are dissolved.
  3. Label the container with the contents, date and a batch number.
  4. Store the closed container at room temperature for up to one year.