What is Na2O7S2? Important knowledge about Na2O7S2.

Na₂O₇S₂, also known as disodium heptaoxodisulphate or sodium pyrosulfate in English, is a chemical compound belonging to the inorganic group. This compound consists of 2 sodium atoms, 7 oxygen atoms, and 2 sulfur atoms. The atomic mass of this compound is 242.04 g/mol.

The molecular structure of Na₂O₇S₂ consists of two sodium atoms, seven oxygen atoms, and two sulfur atoms. The ion structure of Na₂O₇S₂ is not clearly defined.

In terms of physical properties, Na₂O₇S₂ is a solid substance, colorless and has no special odor. The PH value of Na₂O₇S₂ is not determined.

Chemically, Na₂O₇S₂ can react with some metals, acids, and non-metals to form other compounds. Specifically, Na₂O₇S₂ can react with metals like Mg, Al, Fe, Cu, Zn; acids such as HCl, H₂SO₄, HNO₃; and non-metals like O₂, S, P.

Examples of common chemical equations of Na₂O₇S₂ include:
Na₂O₇S₂ + Mg -> MgSO₄ + Na₂SO₄
Na₂O₇S₂ + 2HCl -> 2NaCl + H₂SO₄
Na₂O₇S₂ + 2H₂SO₄ -> 2NaHSO₄ + H₂O
Na₂O₇S₂ + Zn -> ZnSO₄ + Na₂SO₄
Na₂O₇S₂ + Cu -> CuSO₄ + Na₂SO₄

The synthesis of Na₂O₇S₂ is usually carried out in the lab or industrially via the thermal decomposition of sodium sulfate salts.