kemikaalikeston

Kemikaalikeston is a laboratory-synthesized crystalline material that resembles a mineral in its framework and potential applications. It is not known to form naturally and is produced in controlled chemical environments. The term is used in this article to describe a family of porous, framework solids engineered for selective adsorption and catalysis.

Chemically, kemikaalikeston features a tetrahedral network based on silicon and aluminum with incorporated organic ligands and exchangeable cations. The framework yields micropores in the sub-nanometer to nanometer range and can be modified by guests or dopants to tailor acidity, hydrophilicity, and pore size.

The material was first reported in 2015 from a solvothermal synthesis using silica and alumina precursors and organic structure-directing agents, followed by calcination to yield a stable framework. Ongoing research has refined the synthesis for improved crystallinity, reproducibility, and scalability, enabling more consistent properties across batches.

Physically, kemikaalikeston forms a porous solid with properties that vary by composition but commonly exhibit Mohs hardness around 5–6, density near 2.3–2.6 g/cm3, and thermal stability up to about 700 C. It is typically colorless to pale yellow and may exhibit fluorescence under ultraviolet light when doped with certain metals. The material’s performance is highly dependent on pore architecture and framework chemistry.

Potential applications include catalysis, gas separation and storage, purification of liquids and vapors, and use as a solid-state dielectric or ion-exchange material. Safety considerations for handling include standard precautions for fine powders to minimize inhalation risk; environmental release should be managed with appropriate disposal protocols. See also zeolites, metal-organic frameworks, and porous ceramics.