piwine
Potassium Acid Phthalate (N/10 solution): 4 oz (118 mL)
Description
Potassium Acid Phthalate, N/10 solution, 4 oz bottle (118 mL). A primary standard used to check the strength of Sodium Hydroxide or other basic solutions. While considered a standard, we recommend replacing at least every 24 months.
Click Here for Instructions to standardize sodium hydroxide with potassium acid phthalate