| 配方类型： |
ELEMENTARY Preparations |
| 配方说明： |
soaps are made fron a fat or fatty acid and an alkali. they
lathetr and produce a foam which entraps dirt and grease. there are
many kinds of soaps.
cleaners contain a solvent, such as naphtha, with or without a soap.
abrasive cleaners are soap pastes containing powdered pumice, stone,
ailica, etc. |
| 配方组成： |
glycern/4
water/11
red oil (oleic acid)/4
solid caustic potash/1
concentrated liquid soap |
| 配制方法： |
dissolve the caustic soda in water, add the glycerin, and bring dto a boil in an enameled pot. remove from the heat, add the red oil slowly, while stirring. if a more neutral soap is wanted, use more red oil. |
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