| 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： |
B) strong liquid ammonia(28%)/0.25
A) kerosene/2.00
denatured nalcohol/0.25
oleic acid/1.00
paint-brush cleaner |
| 配制方法： |
stir slowly b into a until a smootdh muxture resukts. to clean brushes, pour into a can and leave the brushes in it overnight. in the morming, wash out with warm water. |
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