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  2. Hygroscopy - Wikipedia

    en.wikipedia.org/wiki/Hygroscopy

    Hygroscopy is the phenomenon of attracting and holding water molecules via either absorption or adsorption from the surrounding environment, which is usually at normal or room temperature.

  3. Hydroscope - Wikipedia

    en.wikipedia.org/wiki/Hydroscope

    A hydroscope is any of several instruments related to water: . One kind is an instrument for making observations below the surface of water, [1] such as a long tube fitted with various lenses arranged so that objects lying at the bottom can be reflected upon a screen on the deck of the ship that carries it.

  4. Hygroscopic cycle - Wikipedia

    en.wikipedia.org/wiki/Hygroscopic_cycle

    The Hygroscopic cycle is a thermodynamic cycle converting thermal energy into mechanical power by the means of a steam turbine.It is similar to the Rankine cycle using water as the motive fluid but with the novelty of introducing salts and their hygroscopic properties for the condensation.

  5. Desiccant - Wikipedia

    en.wikipedia.org/wiki/Desiccant

    Canisters are commonly filled with silica gel and other molecular sieves used as desiccant in drug containers to keep contents dry. Silica gel in a sachet or porous packet. A desiccant is a hygroscopic substance that is used to induce or sustain a state of dryness (desiccation) in its vicinity; it is the opposite of a humectant.

  6. Humectant - Wikipedia

    en.wikipedia.org/wiki/Humectant

    A humectant / h juː ˈ m ɛ k t ən t / is a hygroscopic (water-absorbing) substance used to keep things moist. They are used in many products, including food, cosmetics, medicines and pesticides.

  7. Iron(II) sulfate - Wikipedia

    en.wikipedia.org/wiki/Iron(II)_sulfate

    Iron(II) sulfate (British English: iron(II) sulphate) or ferrous sulfate denotes a range of salts with the formula Fe SO 4 ·xH 2 O. These compounds exist most commonly as the heptahydrate (x = 7) but several values for x are known.

  8. Standard solution - Wikipedia

    en.wikipedia.org/wiki/Standard_solution

    A standard solution created from a secondary standard cannot have its concentration accurately known without stoichiometric analysis against a primary standard. An example of a secondary standard is sodium hydroxide, a hydroscopic compound that is highly reactive with its surroundings. The concentration of a standard solution made with sodium ...

  9. Ammonium chloride - Wikipedia

    en.wikipedia.org/wiki/Ammonium_chloride

    Ammonium chloride is an inorganic chemical compound with the chemical formula N H 4 Cl, also written as [NH 4]Cl.It is an ammonium salt of hydrogen chloride.It consists of ammonium cations [NH 4] + and chloride anions Cl −.