In this project, I had made soap with oil, water and NaOH, and it so easy.
I’m sure that everyone can do it.
Step 2: Calculate the NaOH That We Should Use It.
First looking for this reaction. In this Saponification
reaction show that we have to use 3 moles of NaOH to make an Irreversible reaction
then looking for the molecular weight of oil. In this formula, I use coconut oil and olive oil (12:8) because coconut oil is made soap has good cleaning and coconut oil can help to relieve dry skin.
molecular weight of coconut oil => 279.6
molecular weight of coconut oil => 330.5
coconut oil 20 g. = 0.0715 mole
mole = mass (g.) / Molar mass (g./mol)
= 0.0715 x 40
2.8612 x 3 = 8.58 g. (NaOH 8.58 g. per Oil 20 ml.)
Step 3: Prepare Ingredients.
- Coconut oil 12 g.
- Olive oil 8 g.
- NaOH 8.58 g.
- Water 15 ml.
- Stirring Rod
Step 4: Make It.
1. Add NaOH to water and stir.
2. Then pour it into a beaker of mixed oil.
3. Wait for 3 minutes (for Saponification).
4. Stewed it for 2 hours.
5. After that, put a soap out of the beaker and leave it for 2 days.