NaClsta

NaClsta is a proposed class of ternary salts that combines a sodium chloride (NaCl)–type lattice with a dopant component abbreviated as STA. The term appears in early 2020s theoretical discussions of ion-conducting solids, where NaClsta is described as a sodium chloride framework incorporating the stabilizing dopant STA. The general notion is often represented as NaCl·STA, with STA denoting a stabilizing agent or polyatomic dopant.

Crystallography and synthesis reports describe NaClsta as forming halite-like, cubic crystals that exhibit lattice distortions related to the type and concentration of STA. Preparation methods cited include co-precipitation or solid-state reaction of NaCl with STA precursors under controlled atmospheres, followed by slow annealing to promote orderly crystallization. Moisture control and careful atmosphere management are emphasized to preserve phase integrity.

Properties and potential applications are described as variable, with some studies reporting improved ionic transport relative to pure NaCl at elevated temperatures, coupled with moisture sensitivity and dependence on STA composition. The scope of suggested uses includes solid-state electrolytes for batteries, chemical sensors, and selective ion membranes. However, results are preliminary, and reproducibility across independent laboratories remains limited.

Status and etymology: the name NaClsta derives from aligning NaCl with the STA dopant concept. The existence of NaClsta as a distinct, well-characterized compound remains tentative, with ongoing discussions and a need for broader verification. See also: sodium chloride, solid electrolytes, doped halides.