YOU DO NOT NEED MUCH TO MAKE LAUNDRY BAR SOAP

I made this with just: 1. Oil: that provided the fatty acid: you can use either Palm Kernel Oil or bleached Palm Oil. It is adviceable to blend the oils so the soap will foam well and last. Use 70 percent bleached Palm Oil and 20percent good quality Palm Kernel Oil. (I will teach you later how to test for good quality Palm Kernel Oil). Use 1:4 ratio of caustic soda to oil. 2. Caustic soda: source of alkali. Use 1:2 caustic soda to water ratio and dissolve the caustic soda. Soak for two days. 3. Soda ash: to increase the size. Your soap can contain between 30 to 40 percent soda ash by volume of oil. 4. Liquid detergent: this is to prevent your soap mixture from separating. I reduces the surface tension and helps your mixture to be homogenous. Check my other write up on how to make a good liquid detergent. 5. Colour and perfume are optional. You don't need silicate and calcium carbonate as your soap will already be very hard. I didn't add any colour. For laundry soap, the question is does it foam? Does it last? Hope it doesn't itch? Is the texture marketable? Is it big with profit? Keep your chemical inventory low. Optimize size, quality, and profit.

DON'T ADD SODA ASH TO BATHING SOAP. STOP IT!

Soda ash is sodium carbonate and too much sodium in soap makes the soap harsh on the skin. Soda ash is a weak base added to increase the size of laundary soaps. A bathing soap (Toilet soap) must have more of potassium salt and little of sodium. Factory formulated Toilet Soaps contain Potassium Hydroxide and this gives you that gentle feel in the bath room ~ unlike sodium soaps that we use for laundary. By standard, a Toilet soap should have pH of about 9 while Laundary is 10. Total Fatty Matter in Toilet Soap should be up to 75percent. The standard is indeed high for Toilet soap because it is used to take care of the largest organ of the body ~ the skin. While fillers, bulking agents, foaming agents and hardeners, like soda ash, kaolin, SLS/Sulphonic acid, Silicate, and Calcium Carbonates, are permitted in laundary soaps, you must never put them in bathing soap. A bathing soap must be as natural as possible. An improperly prepared bathing soap may not have effect today but that is cancer (especially cervical) and other dermatological disorder waiting for the future. Use only oils and alkali to make your bathing soaps. Add perfumes and colours that are not carcinogenic. Palm Kernel Oil alone is not suitable for bathing soap ~ you need superfat. Blend the oil with Palm Oil, Coconut Oil or Sheabutter. Caustic soda alone is not suitable add potassium hydroxide. Formulate it well. The glycerol must be intact. Give it time to cure. A toilet soap must be gentle, soft, and supple. From: Odfid Technical Center