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  •  Science >> Scienza >  >> Chimica
    Why does washing soda need to be dissolved in water before it is used clean the floor?
    Washing soda, which is sodium carbonate (Na₂CO₃), needs to be dissolved in water before being used to clean floors for several reasons:

    1. Increased Cleaning Power:

    * Solubilità: Washing soda is a solid, and its cleaning power comes from the release of carbonate ions (CO₃²⁻) in solution. Dissolving it in water allows these ions to be readily available to interact with dirt, grease, and grime on the floor.

    * Increased Contact Area: When dissolved, the sodium carbonate molecules disperse throughout the water, increasing their contact area with the surface being cleaned. This enhances the cleaning action.

    2. Safety and Handling:

    * Dust Prevention: Solid washing soda can be dusty, which can irritate the skin and respiratory system. Dissolving it in water reduces the dust hazard.

    * Dilution: Dissolving washing soda in water allows for easier control of the concentration, ensuring a safe and effective cleaning solution.

    3. Enhanced Efficiency:

    * Easier Application: A dissolved solution is easier to apply evenly on the floor compared to trying to spread solid washing soda.

    * Improved Rinsing: The dissolved solution can be more easily rinsed from the floor, leaving behind a cleaner surface.

    Nota importante: When using washing soda for cleaning, it's crucial to use it in the right concentration and to thoroughly rinse the floor after cleaning. Excessive use can damage certain floor surfaces.

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