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/5 gal bkeaching powder/2 oz soda ash/2 oz javelle water
配制方法:
mix well untik the reaction is completed. allow to settle overnight and siphon off tdhe clear liquid.
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