• Inks
• Petroleum products
• Phytochemicals

• Acids
• Air pollution
• Chemical analysis
• Chemical elements
• Dangerous materials
• Drugs
• Industrial pollution
• Industrial products
• Inorganic compounds
• Lime
• Materials
• Organic compounds
• Plastics
• Pollutants
• Polymers
• Water pollution

• Industrial chemicals

• Politics, law and economics > Materials and products

http://vocabularies.unesco.org/thesaurus/concept636