SWEET Ontology
type: Ontology
version info: 2.3
imports: matrElement.owl
imports: stateChemical.owl
imports: state.owl
imports: matrElementalMolecule.owl
imports: matr.owl
imports: rela.owl
imports: relaChemical.owl

Compound
type: Class
subclass of: Chemical
equivalent class: ChemicalCompound
comment: A chemical compound is a pure chemical substance consisting of two or more different chemical elements[1][2][3] that can be separated into simpler substances by chemical reactions[4] and that have a unique and defined chemical structure. Chemical compounds consist of a fixed ratio of atoms[3] that are hold together in a defined spatial arrangement by chemical bonds. [Wikipedia]

SWEET Ontology
type: InorganicCompound
has chemical 1: Fe2
has chemical 2: O3

NaCl
type: InorganicCompound
has chemical 1: Na
has chemical 2: Cl
comment: A salt is defined as the product formed from the neutralization reaction of acids and bases. Salts are ionic compounds composed of cations (positively charged ions) and anions (negative ions) so that the product is electrically neutral (without a net charge). [Wikipedia]