ph strips

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  1. K

    Phenolphthalein, pH strips, and Olive Oil Liquid Soap

    I am pulling out my hair trying to get my olive oil liquid soap right. Here's my recipe: 24 oz. olive oil 5 oz. potassium hydroxide 5 oz. water 10 oz. glycerin All went well, soap diluted just fine and was clear as a bell. I tested the pH in three different ways: pH strips...