What is Fe3H3O3? Important knowledge about Fe3H3O3.

1. Definition of Fe₃H₃O₃: Fe₃H₃O₃ is not the correct formula for a chemical substance. It might be a typing error, because there is no chemical substance with this formula. Based on this formula, one might be referring to Fe₂O₃.3H2O, also known as hydrated iron (III) oxide.

1.1 Common name: Hydrated iron (III) oxide
1.1.2 English name: Hydrated iron(III) oxide
1.2 Atomic mass: Iron is 55.845, Oxygen is 15.999, and Hydrogen is 1.007.
1.3 Molar mass: Of Fe₂O₃.3H2O is 159.688.
1.4 Ion structure: Does not form ions in its pure solid state. When dissolved in water or acid, it forms Fe₃+ and OH- ions.

2. Properties: Fe₂O₃.3H2O
   2.1 Physical properties: This is a solid substance, with a reddish-brown color, no distinct smell, and does not dissolve in water.
   2.2 Chemical properties: This substance has weak acidic properties, and it can react with bases to form salts and water.

3. Common chemical equations of Fe₂O₃.3H2O:

Fe₂O₃.3H₂O + 2OH- -> 2[Fe(OH)4]-
Fe₂O₃.3H₂O + 6HCl -> 2FeCl₃ + 6H₂O

4. Preparation of Fe₂O₃.3H2O:

Fe₂O₃.3H2O can be prepared from the reaction between Fe₂O₃ and water:
Fe₂O₃ + 3H₂O + Fe₂O₃ -> .3H2O

Industrially, Fe₂O₃.3H2O is produced from the oxidation of iron in humid air.