enow.com Web Search

Search results

  1. Results from the WOW.Com Content Network
  2. Crystallization - Wikipedia

    en.wikipedia.org/wiki/Crystallization

    The second type of crystals are composed of uncharged species, for example menthol. [1] Crystals can be formed by various methods, such as: cooling, evaporation, addition of a second solvent to reduce the solubility of the solute (technique known as antisolvent or drown-out), solvent layering, sublimation, changing the cation or anion, as well ...

  3. Crystal - Wikipedia

    en.wikipedia.org/wiki/Crystal

    A crystal's crystallographic forms are sets of possible faces of the crystal that are related by one of the symmetries of the crystal. For example, crystals of galena often take the shape of cubes, and the six faces of the cube belong to a crystallographic form that displays one of the symmetries of the isometric crystal system. Galena also ...

  4. List of biophysically important macromolecular crystal ...

    en.wikipedia.org/wiki/List_of_biophysically...

    Myoglobin sketch Alpha helix. 1958 – Myoglobin was the very first crystal structure of a protein molecule. [2] Myoglobin cradles an iron-containing heme group that reversibly binds oxygen for use in powering muscle fibers, and those first crystals were of myoglobin from the sperm whale, whose muscles need copious oxygen storage for deep dives.

  5. Crystal chemistry - Wikipedia

    en.wikipedia.org/wiki/Crystal_Chemistry

    Crystal chemistry is the study of the principles of chemistry behind crystals and their use in describing structure-property relations in solids, ...

  6. Ionic crystal - Wikipedia

    en.wikipedia.org/wiki/Ionic_crystal

    In chemistry, an ionic crystal is a crystalline form of an ionic compound. They are solids consisting of ions bound together by their electrostatic attraction into a regular lattice . Examples of such crystals are the alkali halides , including potassium fluoride (KF), potassium chloride (KCl), potassium bromide (KBr), potassium iodide (KI ...

  7. Crystallography - Wikipedia

    en.wikipedia.org/wiki/Crystallography

    Crystallography ranges from the fundamentals of crystal structure to the mathematics of crystal geometry, including those that are not periodic or quasicrystals. At the atomic scale it can involve the use of X-ray diffraction to produce experimental data that the tools of X-ray crystallography can convert into detailed positions of atoms, and ...

  8. Isomorphism (crystallography) - Wikipedia

    en.wikipedia.org/wiki/Isomorphism_(crystallography)

    Forsterite. In chemistry, isomorphism has meanings both at the level of crystallography and at a molecular level. In crystallography, crystals are isomorphous if they have identical symmetry and if the atomic positions can be described with a set of parameters (unit cell dimensions and fractional coordinates) whose numerical values differ only slightly.

  9. Crystal growth - Wikipedia

    en.wikipedia.org/wiki/Crystal_growth

    To achieve a moderate number of medium-sized crystals, a container which has a few scratches works best. Likewise, adding small previously made crystals, or seed crystals, to a crystal growing project will provide nucleating sites to the solution. The addition of only one seed crystal should result in a larger single crystal.