| 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： |
copal gum/10 oz
paper is coated with or dipped in the following solution and then hung
alcohol/30 fl oz
castor oil/1 fl oz
tp to dry.
glalline paper |
| 配制方法： |
dissolcve by letting stand overnight in a covered jar and stirring the next day. |
|
