What is As2O2S? Important knowledge about As2O2S.

1. Definition of As₂O₂S

As₂O₂S is commonly known as Thioarsenit acid, or Arsenous thiooxide. It is a compound of Arsenic, Oxygen and Sulfur. The atomic mass of As₂O₂S consists of 2 atoms of Arsenic, 2 atoms of Oxygen and 1 atom of Sulfur. The atomic mass in mol units of each atom in the molecule – Arsenic is 74.92, Oxygen is 16 and Sulfur is 32.1. Therefore, the molecular weight of As₂O₂S is about 198 grams/mol.

2. Properties of As₂O₂S

2.1 Physical properties of As₂O₂S

As₂O₂S usually appears as a solid, with a pale yellow color, odorless and has a neutral pH.

2.2 Chemical properties of As₂O₂S

As₂O₂S is very slightly soluble in water, but easily soluble in strong acid or alkali solutions. It also easily reacts with strong oxidizing agents to form other Oxygen and Sulfur compounds.

3. Common chemical equations of As₂O₂S

Currently, there are not many reports on specific chemical reactions of As₂O₂S with Metals, Acids, Nonmetals or Salts.

4. Synthesis of As₂O₂S

4.1 Laboratory synthesis of As₂O₂S

In the lab, As₂O₂S can be synthesized through the reaction of Arsenic with Hydrogen sulfide.

4.2 Industrial synthesis of As₂O₂S

On an industrial scale, As₂O₂S is usually synthesized from the refining process of Arsenic from sulfur or from the deoxygenation process of Arsenic by Sulfur.