What is Sr2S2O7? Important knowledge about Sr2S2O7.

1. Definition of Sr₂S₂O₇
   Sr₂S₂O₇, also known as strontium pyrosulfate, is a chemical compound containing the elements strontium, sulfur, and oxygen. Its English name is “Strontium Pyrosulfate”. The molecular structure consists of 2 strontium atoms, 2 sulfur atoms, and 7 oxygen atoms. Its molar mass is 380.77 g/mol.

In this compound, the strontium atom is in the ionized state Sr₂+, while sulfur and oxygen form the pyrosulfate ion with the structure S₂O₇^2-

2. Properties of Sr₂S₂O₇
   Physical properties: Strontium Pyrosulfate typically appears as a solid, colorless, and odorless substance. Its pH is not clearly defined.
   Chemical properties: Strontium Pyrosulfate has the ability to react with other substances to form new compounds.

3. Common chemical equations:
   While not commonly encountered in specific chemical reactions, Sr₂S₂O₇ can react with metals, acids, nonmetals, and salts under appropriate conditions.

4. Synthesis of Sr₂S₂O₇
   Sr₂S₂O₇ can be synthesized in the lab through the reaction between strontium carbonate (SrCO₃) and sulfur trioxide (SO₃). On an industrial scale, it can be produced through a melting process and reaction between strontium sulfate (SrSO₄) and sulfur.