Sodium Metasilicate Pentahydrate for sale
Sodium metasilicate pentahydrate Physical and chemical properties: white square crystals or spherical particles. The relative density is 0.7-1.0, and the melting point is 72.2°C. It is easily soluble in water and dilute lye, insoluble in alcohol and acid, and the aqueous solution is alkaline. It is easy to absorb moisture and deliquescence in the exposed air. It has detergent emulsification, dispersion, wetting, permeability and pH buffering capabilities. The concentrated solution has corrosive effects on plants and skin.
Standard for pentahydrate:BS3984-1982
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Indicator name
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Value
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Sodium content(Na2O)%
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≥28
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Silicon content(SiO2) %
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≥27
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Water insoluble matter %
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2
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Iron content (Fe)mg/kg
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≤0.2
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