Arsenic pentoxide
Arsenic pentoxide is an inorganic compound with formula As₂O₅, containing arsenic in the +5 oxidation state. It is a highly toxic acidic oxide.
Arsenic trioxide: Arsenic trioxide is an inorganic arsenic oxide with formula As₂O₃ and arsenic in the +3 oxidation state. It is the lower oxide and a useful comparison for arsenic pentoxide’s oxidation state and chemistry.
Wood preservation: Wood preservation uses treatments to protect timber from fungi, insects, and decay. Arsenic compounds, including arsenic pentoxide, have been used in preservative formulations.
Oxidation state: An oxidation state is a formal accounting value assigned to an atom in a compound. The name and formula reflect arsenic’s +5 oxidation state in this oxide.
Antimony pentoxide: Antimony pentoxide is an inorganic oxide with formula Sb₂O₅ and antimony in the +5 oxidation state. It shares the pentoxide pattern but replaces arsenic with its chemical-group neighbor antimony.
Arsenic acid: Arsenic acid is the oxyacid H₃AsO₄, formed when arsenic pentoxide reacts with water. Hydration connects the oxide to its corresponding acid.
Chromated copper arsenate: Chromated copper arsenate is a wood preservative containing chromium, copper, and arsenic compounds. Arsenic pentoxide has served as an arsenic source in some formulations of this preservative.
Chemical formula: A chemical formula represents the elements and relative numbers of atoms in a substance. As₂O₅ specifies two arsenic atoms for every five oxygen atoms.
Phosphorus pentoxide: Phosphorus pentoxide is the common name for phosphorus(V) oxide, typically represented by formula P₄O₁₀. It is a more familiar group-15 acidic oxide with different structure and water reactivity.
Arsenate: Arsenate is the AsO₄³⁻ ion and its salts, with arsenic in the +5 oxidation state. In water, arsenic acid can form arsenate ions as its protons dissociate.
Glass manufacturing: Glass manufacturing transforms silica-rich mixtures into glass by melting and controlled cooling. Arsenic oxides have been used as fining agents to remove bubbles from some glass melts.