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2. Sodium bicarbonate - Wikipedia

   en.wikipedia.org/wiki/Sodium_bicarbonate

   Sodium bicarbonate is used in BC dry chemical fire extinguishers as an alternative to the more corrosive monoammonium phosphate in ABC extinguishers. The alkaline nature of sodium bicarbonate makes it the only dry chemical agent, besides Purple-K, that was used in large-scale fire suppression systems installed in commercial kitchens. [30]

3. Alkalinity - Wikipedia

   en.wikipedia.org/wiki/Alkalinity

   Alkalinity (from Arabic: القلوية, romanized: al-qaly, lit. 'ashes of the saltwort') [1] is the capacity of water to resist acidification. [2] It should not be confused with basicity, which is an absolute measurement on the pH scale. Alkalinity is the strength of a buffer solution composed of weak acids and their conjugate bases.

4. Hard water - Wikipedia

   en.wikipedia.org/wiki/Hard_water

   In swimming pools, hard water is manifested by a turbid, or cloudy (milky), appearance to the water. Calcium and magnesium hydroxides are both soluble in water. The solubility of the hydroxides of the alkaline-earth metals to which calcium and magnesium belong (group 2 of the periodic table) increases moving down the column. Aqueous solutions ...

5. Bicarbonate - Wikipedia

   en.wikipedia.org/wiki/Bicarbonate

   A bicarbonate salt forms when a positively charged ion attaches to the negatively charged oxygen atoms of the ion, forming an ionic compound. Many bicarbonates are soluble in water at standard temperature and pressure; in particular, sodium bicarbonate contributes to total dissolved solids, a common parameter for assessing water quality. [6]

6. Salt water chlorination - Wikipedia

   en.wikipedia.org/wiki/Salt_water_chlorination

   Salt water chlorination is a process that uses dissolved salt (1000–4000 ppm or 1–4 g/L) for the chlorination of swimming pools and hot tubs.The chlorine generator (also known as salt cell, salt generator, salt chlorinator, or SWG) uses electrolysis in the presence of dissolved salt to produce chlorine gas or its dissolved forms, hypochlorous acid and sodium hypochlorite, which are already ...

7. Alkali soil - Wikipedia

   en.wikipedia.org/wiki/Alkali_soil

   Soil alkalinity is associated with the presence of sodium carbonate (Na 2 CO 3) or sodium bicarbonate (NaHCO 3) in the soil, [5] either as a result of natural weathering of the soil particles or brought in by irrigation and/or flood water. This salt is extremely soluble, when it undergoes hydration, it dissociates in: Na 2 CO 3 → 2 Na + + CO ...