prov:value
| - While the term ???sodium silicate??? is used herein, this term is not limited to only Na2O???MSiO2, but includes, for example without limitation, sodium orthosilicate, sodium tetrasilicate, sodium metasilicate, sodium silicate, Na4O4???MSiO2(or Si), Na2O???MSiO3, Na2???MSi4O9, and other comparable silicates whether in dry or solution form.
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