Here are some things you can do:

• Add references: Fractional crystallization (chemistry) - Hydrolysis - Molluscicide - Perfluorocycloalkene (needs general refs) - Hair conditioner - Water softening - Tarnish - Free-radical reaction
• Copyedit: Paint thinner - Lacquer - Algaecide - Hydroxyl radical
• Update: Nematicide - Biopesticide - Glucoside
• Style: Explosive - Shampoo - Corrosion - Biodiesel - Preservative - Recrystallization (chemistry)
• Articles needing an expert: Ethyl nitrate - Ionization energy - Zwitterion - Photoredox catalysis - faujasite - Manganese-mediated coupling reactions
• Expand: Organouranium chemistry - Organolanthanide chemistry - Oxygen Scavengers - Ionization energy
• Merge: Petrochemical industry & Petrochemical - Imine Diels–Alder reaction & Aza-Diels–Alder reaction - Benzylic activation and stereocontrol in tricarbonyl(arene)chromium complexes & (Benzene)chromium tricarbonyl - Oxidation with dioxiranes & Epoxidation with dioxiranes - Carbohydrate & Carbohydrate chemistry - Macrocyclic stereocontrol & Macrocycle - Nucleophilic acyl substitution & Acylation
• Collaborate: Sodium hydroxide - Ruthenium compounds - Rhenium compounds
• Article requests: Organothallium chemistry - Selenium-77 nuclear magnetic resonance spectroscopy - Fluoride ion affinity - functional group compatibility - Diffusion-ordered spectroscopy (DOSY)
• Accuracy disputes: Diazonium compound: "Phenyldiazonium chloride is dangerously explosive, but benzenediazonium tetrafluoroborate is easily handled on the bench."
• Peer review: Monatomic ion