What Is The Crystal Structure Of Na2so4?

The crystal structure of Na2SO4 is known as the "mirabilite" structure, which belongs to the monoclinic crystal system. It consists of sodium ions (Na+) and sulfate ions (SO42-) arranged in a three-dimensional framework, with water molecules occupying the interstitial spaces. The sulfate ion has a tetrahedral geometry, with four oxygen atoms surrounding the sulfur atom. The sodium ions are surrounded by eight oxygen atoms, forming a distorted cube-shaped coordination. The crystal lattice can be described as layers of sulfate ions alternating with layers of sodium and water molecules, held together by ionic interactions.