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2. Calcium hypochlorite - Wikipedia

   en.wikipedia.org/wiki/Calcium_hypochlorite

   Calcium hypochlorite is a general oxidizing agent and therefore finds some use in organic chemistry. [6] For instance the compound is used to cleave glycols, α-hydroxy carboxylic acids and keto acids to yield fragmented aldehydes or carboxylic acids. [7] Calcium hypochlorite can also be used in the haloform reaction to manufacture chloroform. [8]

3. Swimming pool sanitation - Wikipedia

   en.wikipedia.org/wiki/Swimming_pool_sanitation

   Total alkalinity should be 80–120 ppm and calcium hardness between 200 and 400 ppm. [ 14 ] [ failed verification ] Good hygienic behavior at swimming pools is also important for reducing health risk factors at swimming pools and spas.

4. 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 ...

5. Hypochlorite - Wikipedia

   en.wikipedia.org/wiki/Hypochlorite

   In chemistry, hypochlorite, or chloroxide is an anion with the chemical formula ClO −. It combines with a number of cations to form hypochlorite salts. Common examples include sodium hypochlorite (household bleach) and calcium hypochlorite (a component of bleaching powder, swimming pool "chlorine"). [1] The Cl-O distance in ClO − is 1.69 Å ...

6. Hot tub - Wikipedia

   en.wikipedia.org/wiki/Hot_tub

   The hardness level of the water, measured as the amount of dissolved calcium, is also important. Insufficient hardness can lead to corrosion and water foaming.The ideal range of calcium hardness levels in a hot tub or spa water should be between 150 and 250 ppm (parts per million) [citation needed]

7. Ocean temperatures around South Florida hit hot-tub levels - AOL

   www.aol.com/news/ocean-temperatures-around-south...

   The surface ocean temperature in and around the Florida Keys soared to typical hot tub levels this week, amid recent warnings from global weather monitors about the dangerous impact of warming ...