CaPOOH

CaPOOH is a shorthand designation used in some chemical literature to denote calcium hydroperoxide, with the formal composition Ca(OOH)2. In this view, calcium acts as the counterion to two hydroperoxide ligands, giving a salt-like inorganic peroxide species. The term CaPOOH appears in older or specialized inorganic peroxide discussions and is not universally adopted as a strict IUPAC name.

Structure and properties

Ca(OOH)2 comprises a Ca2+ cation coordinated by two hydroperoxide (OOH) groups. As with many metal hydroperoxides, CaPOOH is typically described as a highly reactive, moisture-sensitive oxidizer. Solid samples are often white to off-white powders; the compound is unstable at ambient temperatures and can decompose exothermically, releasing oxygen and reactive fragments. Its aqueous behavior depends on concentration and temperature, but hydroperoxide-containing species generally exhibit high oxidizing power and potential to initiate chain reactions with organic materials.

Stability and hazards

Hydroperoxide compounds are known for kinetic instability; CaPOOH can decompose upon heating, friction, or shock. It is hygroscopic and may react violently in the presence of organic substances, reducing agents, or catalysts. Proper handling requires avoidance of heat, impact, and contamination, as well as storage in cool, dry conditions away from incompatible materials.

Synthesis and use

In academic settings, calcium hydroperoxide species can be generated under controlled laboratory conditions from calcium salts and hydrogen peroxide, among other routes. However, CaPOOH is not a widely used commercial material due to its instability and handling risks. It has mainly been the subject of inorganic peroxide research, with potential as a strong oxidizer in specialized applications, rather than a general-purpose reagent.

See also

Calcium peroxide, hydroperoxides, metal peroxide chemistry.