sodium metasilicate

noun
sodium meta·​sil·​i·​cate | \ -ˌme-tə-ˈsi-lə-ˌkāt How to pronounce sodium metasilicate (audio) , -ˈsi-li-kət\

Definition of sodium metasilicate

: a toxic corrosive crystalline salt Na2SiO3 used especially as a detergent or as a substitute for phosphates in detergent formulations

First Known Use of sodium metasilicate

circa 1926, in the meaning defined above

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