Petrochemicals:

• Introduction (hydrocarbons, nomenclature);
• Primary chemicals (alkanes, alkenes/olefins, aromatics);
• Finished products;
• Renewables.

See seforim by Rabbi Cohen at ⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠⁠www.kashrushalacha.com⁠