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  2. Calcium chloride - Wikipedia

    en.wikipedia.org/wiki/Calcium_chloride

    Calcium chloride was apparently discovered in the 15th century but wasn't studied properly until the 18th century. [11] It was historically called "fixed sal ammoniac" (Latin: sal ammoniacum fixum [12]) because it was synthesized during the distillation of ammonium chloride with lime and was nonvolatile (while the former appeared to sublime); in more modern times (18th-19th cc.) it was called ...

  3. Calcium chloride transformation - Wikipedia

    en.wikipedia.org/wiki/Calcium_Chloride...

    Calcium chloride treatment is generally used for the transformation of E. coli and other bacteria. [11] It enhances plasmid DNA incorporation by the bacterial cell, promoting genetic transformation. Plasmid DNA can attach to LPS by being added to the cell solution together with CaCl 2. [12]

  4. Cement accelerator - Wikipedia

    en.wikipedia.org/wiki/Cement_accelerator

    Calcium chloride (CaCl 2) is the most efficient and least expensive accelerator [4] and was formerly very popular. However, chloride anions are very corrosive for the steel of the reinforcement bars (rebars) so its use is no longer recommended [ 5 ] and in many countries actually prohibited.

  5. Desiccant - Wikipedia

    en.wikipedia.org/wiki/Desiccant

    Other common desiccants include activated charcoal, calcium sulfate, calcium chloride, and molecular sieves (typically, zeolites). Desiccants may also be categorized by their type, either I, II, III, IV, or V. These types are a function of the shape of the desiccant's moisture sorption isotherm. Alcohols and acetones are also dehydrating agents.

  6. Water softening - Wikipedia

    en.wikipedia.org/wiki/Water_softening

    When all the available Na + ions have been replaced with calcium or magnesium ions, the resin must be recharged by eluting the Ca 2+ and Mg 2+ ions using a solution of sodium chloride or sodium hydroxide, depending on the type of resin used. [10] For anionic resins, regeneration typically uses a solution of sodium hydroxide or potassium hydroxide.

  7. Here’s Why You Shouldn’t Use Salt on Concrete - AOL

    www.aol.com/why-shouldn-t-salt-concrete...

    All that damage starts after ice melts, so adding an ice melter (which is heavy in chemicals such as sodium chloride, magnesium chloride, calcium chloride, or other elements) can cause corrosion ...

  8. Cardiac action potential - Wikipedia

    en.wikipedia.org/wiki/Cardiac_action_potential

    These calcium ions bind to and open more calcium channels (called ryanodine receptors) located on the sarcoplasmic reticulum within the cell, allowing the flow of calcium out of the SR. These calcium ions are responsible for the contraction of the heart. Calcium also activates chloride channels called I to2, which allow Cl − to enter the cell ...

  9. 6 Big Shakeups Coming to Social Security in 2025 - AOL

    www.aol.com/6-big-shakeups-coming-social...

    Nearly 72.88 million Americans rely on Social Security for monthly income. The vast majority, about 65.5 million, collect Social Security benefits. Another 4.88 million receive Supplemental ...

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