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  2. Mineral water - Wikipedia

    en.wikipedia.org/wiki/Mineral_water

    Mineral water is water from a mineral spring that contains various minerals, such as salts and sulfur compounds. It is usually still, but may be sparkling ( carbonated / effervescent ). Traditionally, mineral waters were used or consumed at their spring sources, often referred to as "taking the waters" or "taking the cure," at places such as ...

  3. Tap water - Wikipedia

    en.wikipedia.org/wiki/Tap_water

    Even though the water distribution system is supposed to deliver the treated water to the consumers' taps without water quality degradation, complicated physical, chemical, and biological factors within the system can cause contamination of tap water. [5] Tap water can sometimes appear cloudy and is often mistaken for mineral impurities in the ...

  4. Hard water - Wikipedia

    en.wikipedia.org/wiki/Hard_water

    Hard water is water that has a high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone, chalk or gypsum, [1] which are largely made up of calcium and magnesium carbonates, bicarbonates and sulfates. Drinking hard water may have moderate health benefits.

  5. Which drinking water is healthiest? The pros and cons of tap ...

    www.aol.com/lifestyle/drinking-water-healthiest...

    While some bottled water is from a spring or filtration system, research shows that nearly 65% of bottled water sold in the U.S. comes from municipal tap water. But Rumpler says there can be ...

  6. Aqueous solution - Wikipedia

    en.wikipedia.org/wiki/Aqueous_solution

    An aqueous solution is a solution in which the solvent is water. It is mostly shown in chemical equations by appending (aq) to the relevant chemical formula . For example, a solution of table salt , also known as sodium chloride (NaCl), in water would be represented as Na + (aq) + Cl − (aq) .

  7. Fluoride - Wikipedia

    en.wikipedia.org/wiki/Fluoride

    Its salts and minerals are important chemical reagents and industrial chemicals, mainly used in the production of hydrogen fluoride for fluorocarbons. Fluoride is classified as a weak base since it only partially associates in solution, but concentrated fluoride is corrosive and can attack the skin. Fluoride is the simplest fluorine anion.

  8. Ammonia solution - Wikipedia

    en.wikipedia.org/wiki/Ammonia_solution

    In drinking water, chloramine is preferred over direct chlorination for its ability to remain active in stagnant water pipes longer, thereby reducing the risk of waterborne infections. Ammonia is used by aquarists for the purposes of setting up a new fish tank using an ammonia process called fishless cycling. [17]

  9. Drinking water - Wikipedia

    en.wikipedia.org/wiki/Drinking_water

    Other typical uses for tap water include washing, toilets, and irrigation. Greywater may also be used for toilets or irrigation. Its use for irrigation however may be associated with risks. [32] Globally, by 2015, 89% of people had access to water from a source that is suitable for drinkingcalled improved water sources. [32]