FeOH3s

FeOH3s is a chemical formula that represents iron(III) hydroxide. It is a precipitate that forms when soluble iron(III) salts are added to an alkaline solution. The chemical reaction for its formation is typically given as Fe³⁺(aq) + 3OH⁻(aq) → Fe(OH)₃(s). Iron(III) hydroxide is an insoluble solid that appears as a reddish-brown gelatinous precipitate.

In its pure form, iron(III) hydroxide is a weak base. It is a relatively stable compound under normal conditions but can decompose upon heating to form iron(III) oxide (Fe₂O₃) and water. This decomposition can be represented by the equation 2Fe(OH)₃(s) → Fe₂O₃(s) + 3H₂O(g).

Iron(III) hydroxide has several practical applications. It is used in water treatment as a coagulant to remove impurities. It is also employed in the production of pigments, particularly for its red-brown color. Furthermore, it plays a role in the synthesis of other iron compounds. The presence of iron(III) hydroxide can be indicative of certain geological processes and is a common observation in natural water systems. Its formation is pH-dependent, and it is generally found in alkaline or neutral environments. The exact structure and properties can vary depending on the method of preparation and the presence of impurities.