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.