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          Sodium metasilicate
          Product name: Sodium metasilicate
          CAS NO: 6834-92-0
          Molecular weight: 122.07118 
          EC NO: 229-912-9
          Molecular formula: Na2SiO3
          InChI: InChI=1/2Na.HO3Si/c;;1-4(2)3/h;;4H/q2*+1;-2
          Structural formula:
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