What is Ca2S2O7? Important knowledge about Ca2S2O7.

Ca₂S₂O₇, also known as calcium pyrosulfate or Calcium persulfate in English. The molecular structure of this substance consists of 2 calcium atoms, 2 sulfur atoms, and 7 oxygen atoms. Its atomic weight is 208.18 g/mol. Under standard conditions, it exists as a colorless, odorless solid compound with a neutral pH.

The chemical properties of Ca₂S₂O₇ include its ability to react with metals, acids, nonmetals, and salts. Examples of common chemical equations involving Ca₂S₂O₇ may include:

• Reaction with metals: Ca₂S₂O₇ + 2Al -> 2CaO + Al₂(SO₄)₃
• Reaction with acids: Ca₂S₂O₇ + 2HCl -> 2CaCl₂ + 2SO₃
• Reaction with nonmetals: Ca₂S₂O₇ + C -> 2CaSO₄ + CO₂
• Reaction with salts: Ca₂S₂O₇ + 2NaCl -> 2CaCl₂ + Na₂S₂O₇

In the laboratory, Ca₂S₂O₇ can be synthesized by heating CaSO₄ with CaS in air. Industrially, it is typically produced by reacting CaSO₄ and SO₂ at high temperatures.