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Sodium metasilicate


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For those interested in green cleaning, some manufacturers sell “phosphate-free” TSP powder, available in home centers and hardware stores. The phosphate-free formulation contains sodium metasilicate.


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When mixed with water, sodium metasilicate makes a highly effective cleaner that can remove dirt and marks from walls in preparation for painting, and attack stubborn soils on siding when cleaning the exterior of a home. Follow label directions for proper use – even a small amount of phosphate-free TSP powder dissolved in water produces a powerful cleaner.

Sodium metasilicate is highly alkaline. Dust from the powder can irritate the nose, eyes and lungs. When mixed with water to form a cleaning solution, prolonged exposure to this compound can cause skin irritation. Wear protective gloves, eye protection and long sleeved shirts and pants while using this product. Wear a dust mask while mixing the powder with water if dust irritates nasal passages.

Store the compound in original containers in a dry location. Sodium metasilicate is highly poisonous when ingested. Store it out of the reach of children or pets.


Sodium metasilicate:  Created on November 3rd, 2009.  Last Modified on November 3rd, 2009


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