Recrystallized

Recrystallized describes the process by which a substance, typically a solid, is dissolved and then reformed into new crystals. This can involve changes in crystal structure, size, and purity, driven by variations in temperature, pressure, or solvent conditions. The core principle is breaking down an existing crystal lattice and then rebuilding it under more controlled conditions to produce a purer, more ordered crystal structure. This is crucial in various scientific and industrial applications for purifying, modifying, and optimizing materials. The resulting crystals often exhibit improved physical properties compared to the original, such as enhanced hardness or greater clarity.

Recrystallized meaning with examples

• After the initial synthesis, the crude compound was recrystallized from hot ethanol to remove the colored impurities. The slow cooling process allowed for the formation of larger, more uniform crystals, leading to a significantly purer product. This process is critical for achieving the required purity for pharmaceutical applications. This technique highlights the power of recrystallization to separate the desired material.
• The metallurgist observed that the metal alloy had recrystallized after being subjected to high temperatures and stress. The original grain structure was replaced by a new, finer grain structure, resulting in improved ductility and toughness. This alteration of the microstructure significantly improved the material's performance under load. This is a necessary action.
• The salt crystals from the evaporated saltwater had recrystallized in the storage container over time. The crystals had re-formed into larger, more distinct structures due to the slow evaporation and change in humidity. This natural process, although often undesirable, illustrates the basic principles behind recrystallization. This type of change is commonly seen.
• To obtain a specific polymorph of a drug, the compound was recrystallized using different solvents and cooling methods. The choice of solvent influenced the crystal form, impacting the drug's solubility and bioavailability. This tailored recrystallization allows for the selection of the most suitable crystal form. Recrystallization is essential in this area.