Gerund: refers to the act or process of removing minerals.
demineralizinggerund / present participle
UK
/ˌdiːˈmɪn.ər.ə.laɪ.zɪŋ/
Used attributively or predicatively to describe agents or processes that remove minerals.
The demineralizing effect of the solution was evident after a few hours.
Деминерализующий эффект раствора стал очевиден через несколько часов.