In Industry and Manufacturing

  • Sulfuric Acid (H₂SO₄): Used in fertilizers, chemicals, petroleum refining, metal processing.
  • Sodium Hydroxide (NaOH): Employed in paper, textiles, soap, and detergent manufacturing.
  • Ammonia (NH₃): Essential for producing fertilizers and various chemicals.
  • Ethylene (C₂H₄): Fundamental in plastics, antifreeze, and synthetic rubber production.
  • Propylene (C₃H₆): Utilized in plastics, chemicals, and synthetic materials.
  • Chlorine (Cl₂): Used in water treatment, disinfectants, and PVC production.
  • Titanium Dioxide (TiO₂): Widely used in paint, sunscreen, and food coloring.
  • Acetic Acid (CH₃COOH): Key ingredient in vinegar, used in food, beverages, and chemical synthesis.

In Agriculture

  • Ammonium Nitrate (NH₄NO₃): A highly effective fertilizer.
  • Urea (CO(NH₂)₂): Widely used nitrogen fertilizer.
  • Glyphosate (C₃H₈NO₅P): Common herbicide for weed control.
  • Potassium Chloride (KCl): Used as a potassium-based fertilizer.
  • Phosphoric Acid (H₃PO₄): Important in making phosphate fertilizers.
  • Dichlorodiphenyltrichloroethane (DDT, C₁₄H₉Cl₅): Previously used as an insecticide in agriculture.

In Medicine and Healthcare

  • Ethanol (C₂H₅OH): Disinfectant and pharmaceutical ingredient.
  • Acetylsalicylic Acid (Aspirin, C₉H₈O₄): Analgesic and anti-inflammatory.
  • Penicillin (Variable formulas): Antibiotics from Penicillium fungi.
  • Ibuprofen (C₁₃H₁₈O₂): Widely used as a pain reliever and anti-inflammatory.
  • Paracetamol (Acetaminophen, C₈H₉NO₂): Common analgesic and antipyretic.
  • Insulin (Variable formulas): Essential hormone for diabetes treatment.

In Food and Beverages

  • Sucrose (C₁₂H₂₂O₁₁): Common table sugar.
  • Sodium Chloride (NaCl): Table salt for seasoning and preservation.
  • Citric Acid (C₆H₈O₇): Preservative and flavoring agent.
  • Sodium Bicarbonate (Baking Soda, NaHCO₃): Used in baking and cooking.
  • Glucose (C₆H₁₂O₆): A simple sugar and energy source in foods.
  • Monosodium Glutamate (MSG, C₅H₈NO₄Na): Flavor enhancer in cooking.

In Energy and Fuels

  • Methane (CH₄): Main component of natural gas.
  • Ethanol (C₂H₅OH): Biofuel and gasoline additive.
  • Gasoline (Variable formulas): Fuel for internal combustion engines.
  • Diesel (Variable formulas): Used in diesel engines, heavier than gasoline.
  • Propane (C₃H₈): Used in heating, cooking, and as a fuel.
  • Butane (C₄H₁₀): Used in lighters and as a propellant.

In Cleaning and Sanitation

  • Sodium Hypochlorite (NaClO): Active ingredient in bleach.
  • Hydrogen Peroxide (H₂O₂): Disinfectant in cleaning products.
  • Acetic Acid (Vinegar, C₂H₄O₂): Cleaning agent and preservative.
  • Lye (Sodium or Potassium Hydroxide, NaOH/KOH): Used in drain cleaners and soap making.
  • Borax (Sodium Borate, Na₂B₄O₇·10H₂O): Cleaning agent and laundry booster.
  • Calcium Hypochlorite (Ca(ClO)₂): Used in pool sanitation and disinfection.

In Cosmetics and Personal Care

  • Glycerol (Glycerine, C₃H₈O₃): Moisturizer in skincare and personal care products.
  • Silicones (Various formulas):

Widely used in hair care and cosmetic products.

  • Zinc Oxide (ZnO): Active ingredient in sunscreens and skin protectants.
  • Sodium Lauryl Sulfate (SLS, C₁₂H₂₅SO₄Na): Common in shampoos and toothpaste.

In Environmental and Safety Applications

  • Carbon Dioxide (CO₂): Used in fire extinguishers and as a refrigerant.
  • Ammonium Sulfate ((NH₄)₂SO₄): Used in flame retardant materials.
  • Sodium Carbonate (Soda Ash, Na₂CO₃): Used in water softening and pH adjustment.

This expanded list covers a broad range of chemicals integral to various sectors, including their applications and chemical formulas, offering a comprehensive overview of their importance in modern society.