“Hard soap”的意思、由来-开放百科全书

词条

Hard soap

释义

References

Hard soap or curd soap is a kind of soap; examples are Aleppo soap, Castile soap, and Marseille soap or savon de Marseille. During the preparation of the soap, common salt (sodium chloride) is added to the liquid soap mass. This leads to the soap mass separating from glycerin, resulting in a harder soap. It can be made using sodium hydroxide.^[1]

References

1. ^Hard Soap, Merriam-Webster Dictionary

1 : Soaps

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