What is Sr2Cr2O7? Important knowledge about Sr2Cr2O7.

Definition of Sr₂Cr₂O₇:
Sr₂Cr₂O₇ is also known as Strontium chromate. This is a chemical compound, consisting only of atoms of Strontium (Sr), Chromium (Cr), and Oxygen (O) in the ratio 2:2:7. The English name for this substance is Strontium chromate. The atomic mass of Sr is 87.62, Cr is 52 and O is 16. Therefore, the molecular mass of Sr₂Cr₂O₇ is 287.62+252+7*16=372.24. The molecular structure of Sr₂Cr₂O₇ can be described by its chemical formula, in which two Sr atoms are linked to two Cr atoms via seven O atoms.

Properties of Sr₂Cr₂O₇:
2.1 Physical properties: Sr₂Cr₂O₇ is solid at room temperature, yellow in color, and has no distinctive odor. It does not evaporate at normal temperatures, is insoluble in water, and has a neutral PH.
2.2 Chemical properties: Sr₂Cr₂O₇ is not easily reactive with metals, acids, nonmetals, and salts. However, it can react when heated or when in contact with strong oxidizing agents.

Chemical equation: There is no characteristic chemical reaction of Sr₂Cr₂O₇ with metals, acids, nonmetals, or salts.

Preparation of Sr₂Cr₂O₇:
4.1 Laboratory preparation: There is no method of preparing Sr₂Cr₂O₇ in the laboratory because it is not common and not easy to prepare.
4.2 Industrial preparation: Sr₂Cr₂O₇ is not usually produced on an industrial scale because it does not have widespread applications in industry.