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What is a buffer solution, why is it used and how to prepare it? Watch further in our video to understand all the secrets of making cosmetics with your own hands.
A great article about the importance of pH and buffer solutions in the BEURRE blog - beurre.ua/ua/pH-adjust
Preparation of 50 g of citrate buffer solution with pH 6.5. Ingredients:
- sodium citrate - 22.8% or 11.4 g (beurre.ua/ua/sodium-citrate)
- citric acid - 2.2% or 1.1 n (beurre.ua/ua/kyslota-lymonnay...)
- distilled water - 75% 37.5 g (beurre.ua/ua/distilled-water)
- NaOH 10% solution - to the required pH (beurre.ua/ua/natryj-gydrookys..., it can be 10-20-30-40 or another number of drops, depending depending on the pH to which you will bring your solution.