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.