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  2. Soda lime - Wikipedia

    en.wikipedia.org/wiki/Soda_lime

    Soda lime canister used in anaesthetic machines to act as a carbon dioxide scrubber. Soda lime, a mixture of sodium hydroxide (NaOH) and calcium oxide (CaO), is used in granular form within recirculating breathing environments like general anesthesia and its breathing circuit, submarines, rebreathers, and hyperbaric chambers and underwater habitats.

  3. The 10 Best Drinking Water Test Kits You Can Order Online - AOL

    www.aol.com/news/7-best-drinking-water-test...

    Quickly and easily test for commonly found pollutants like lead and copper in your home’s drinking water.

  4. Orsat gas analyser - Wikipedia

    en.wikipedia.org/wiki/Orsat_gas_analyser

    An Orsat gas analyser or Orsat apparatus is a piece of laboratory equipment used to analyse a gas sample (typically fossil fuel flue gas) for its oxygen, carbon monoxide and carbon dioxide content. Although largely replaced by instrumental techniques, the Orsat remains a reliable method of measurement and is relatively simple to use.

  5. Lime softening - Wikipedia

    en.wikipedia.org/wiki/Lime_softening

    As lime in the form of limewater is added to raw water, the pH is raised and the equilibrium of carbonate species in the water is shifted. Dissolved carbon dioxide (CO 2) is changed into bicarbonate (HCO − 3) and then carbonate (CO 2-3). This action causes calcium carbonate to precipitate due to exceeding the solubility product.

  6. Carbon dioxide scrubber - Wikipedia

    en.wikipedia.org/wiki/Carbon_dioxide_scrubber

    A carbon dioxide scrubber is a piece of equipment that absorbs carbon dioxide (CO 2). It is used to treat exhaust gases from industrial plants or from exhaled air in life support systems such as rebreathers or in spacecraft , submersible craft or airtight chambers .

  7. Bicarbonate indicator - Wikipedia

    en.wikipedia.org/wiki/Bicarbonate_indicator

    The indicator is used in photosynthesis and respiration experiments to find out whether carbon dioxide is being liberated. [1] It is also used to test the carbon dioxide content during gaseous exchange of organisms. When the carbon dioxide content is higher than 0.04%, the initial red colour changes to yellow as the pH becomes more acidic.

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