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  2. In-tank toilet cleaning tablet - Wikipedia

    en.wikipedia.org/wiki/In-tank_toilet_cleaning_tablet

    In-tank toilet cleaners (also known as toilet water tablets or drop-in toilet bowl cleaners) are tablets or cartridges that add chemicals to toilet tank water to reduce toilet bowl stains. They are commonly used to prevent toilet bowl stains from calcium , limescale , mold , etc. [ 1 ] Most contain chlorine bleach as its main active ingredient ...

  3. Cleaning agent - Wikipedia

    en.wikipedia.org/wiki/Cleaning_agent

    Toilet bowl cleaning often is aimed at removal of calcium carbonate deposits, which are attacked by acids. Powdered cleaners contain acids that come in the form of solid salts, such as sodium hydrogen sulfate. Liquid toilet bowl cleaners contain other acids, typically dilute hydrochloric, phosphoric, or formic acids. These convert the calcium ...

  4. Calcium Lime Rust - Wikipedia

    en.wikipedia.org/wiki/Calcium_Lime_Rust

    Calcium deposits, primarily composed of calcium carbonate (CaCO 3), react with weak acids to form calcium salts that are soluble in water. The general reaction can be represented as follows: CaCO 3 + 2H + → Ca 2+ + CO 2 + H 2 O. Here, H + represents the hydrogen ions provided by the acid

  5. Toilet rim block - Wikipedia

    en.wikipedia.org/wiki/Toilet_rim_block

    Toilet rim blocks are marketed as disinfectants and deodorizers, while allegedly also helping to prevent the buildup of limescale in the toilet bowl.. The composition of toilet blocks can vary, but they may contain (among other components): borax (an ingredient of many detergents), hydroxyethylcellulose (a gelling agent), troclosene sodium (a disinfectant), sodium dodecylbenzenesulfonate (a ...

  6. Urinal deodorizer block - Wikipedia

    en.wikipedia.org/wiki/Urinal_deodorizer_block

    Urinal deodorizer blocks (commonly known as urinal cakes, urinal cookies, urinal biscuits (or jocularly piscuits), urinal donuts, toilet lollies, trough lollies, urinal pucks, hockey pucks, toilet pucks, or urinal peons (alternately urinal pee-ons)) are small disinfectant blocks or tablets that are added to urinals.

  7. Kale is one of the most popular greens today. But is it healthy?

    www.aol.com/kale-one-most-popular-greens...

    One cup of raw kale, for instance, contains protein, fiber, magnesium, phosphorus, zinc and especially high amounts of calcium and potassium, according to the U.S. Department of Agriculture.