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:

water/1 pt
gasoline/1/2 fal
ammonia/5 oz
fine-shaved white soap/12 oz
solidified gasoline

配制方法:

heat the water, add the soap, mix and, when cool,add the ammonia.
then slowly work in the gasoline to form a semisolid mass.