| 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： |
water/1 pt
gasoline/1/2 fal
ammonia/5 oz
fine-shaved white soap/12 oz
solidified gasoline |
| 配制方法： |
heat the water, add the soap, mix and, when cool,add the ammonia.
then slowly work in the gasoline to form a semisolid mass. |
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