Sodium borate Na2B4O7 purity 99.5% Sodium borate index: GR Specification Purity,% 99.5 Phosphate (PO4),% ≤0.001 Clarify test ≤0.005 Sulfate(SO4),% ≤No...

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potassium carbonate k2co3 99.5% sodium formula sodium chemical formula

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