| 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： |
oxalic acid/1/4
prussian blue/1
distilled water/32
liquid laundry blue |
| 配制方法： |
dissolve by mixung in a crock or wooden tub. |
|
