Source: Schema.org v30.1 vocabulary. Official chemicalComposition property definition.
What does chemicalComposition mean?
The chemical composition describes the identity and relative ratio of the chemical elements that make up the substance.
Used on types (domainIncludes)
Expected value types (rangeIncludes)
Schema.org domainIncludes and rangeIncludes are descriptive guidance, not strict validation prohibitions. Check the official reference for updates.
Related reference
Browse all Schema.org types and properties · Google feature support status