NaReO4

NaReO4 (sodium perrhenate) is an inorganic ceramic compound containing rhenium, a refractory metal oxide with high density and mechanical stiffness. This material is primarily of research interest rather than widespread industrial use, explored in specialized applications where rhenium's exceptional properties—including high melting point, corrosion resistance, and nuclear stability—are advantageous. Engineers would consider NaReO4 for niche roles in high-temperature environments, nuclear applications, or as a precursor compound in rhenium-based material synthesis, though cost and limited availability typically restrict it to critical defense, aerospace, or research settings.