Chemistry
Articles about matter, substances, reactions and chemical science.
Chlorine
Chlorine: properties, history, production and uses
Chlorine dioxide
Chlorine dioxide (ClO2): properties, production, uses, and safety
Chlorine monofluoride
Chlorine monofluoride (ClF)
Chlorite
Chlorite (ClO2−): chemistry, preparation, uses and safety
Chloroacetic acid
Chloroacetic acid (monochloroacetic acid)
Chlorofluorocarbon
Chlorofluorocarbon (CFC): chemistry, uses, environmental impact and alternatives
Chloroform
Chlorous acid
Chlorous acid (HClO2): properties, preparation, and uses
Choking agent
Choking agent (pulmonary chemical weapon)
Cholesterol
Cholesterol: function, structure, health implications, and management
Choline
Chondroitin sulfate
Chondroitin sulfate: structure, biological role, and uses
Chromate
Chromate (CrO4^2−): properties, reactions, uses and safety
Chromatography
Chrome alum
Chrome alum (potassium chromium sulfate)
Chromic acid
Chromium
Chromium — properties, chemistry, uses, and safety
Chromium(II) chloride
Chromium(II) chloride: properties, synthesis, and laboratory handling
Chromium(II) oxide
Chromium(II) oxide (CrO)
Chromium(III) chloride
Chromium(III) chloride (CrCl3)
Chromium(III) oxide
Chromium(III) oxide (Cr2O3)
Chromium(III) sulfate
Chromium(IV) oxide
Chromium(IV) oxide (chromium dioxide, CrO2)
Chromium(VI) oxide
Chromium(VI) oxide (chromium trioxide)
Chromophore
Chromophore: the light‑absorbing part of a molecule
Chromyl chloride
Chromyl chloride (CrO2Cl2): properties, preparation, uses, and safety
Cinnabar
Cinnabar: the red mercury sulfide mineral and its uses
Citric acid
Citric acid: properties, biological role, uses and history
Clandestine chemistry
Clandestine chemistry: illegal synthesis, risks, and social impacts
Co-factor
Cobalt
Cobalt: Transition Metal Properties, Industrial Uses, and Biological Importance
Cobalt oxide
Cobalt(II,III) oxide
Cobalt(II,III) oxide (Co3O4): properties, structure and applications
Cobalt(II) chloride
Cobalt(II) fluoride
Cobalt(II) fluoride (CoF2) — properties, preparation and uses
Cobalt(II) hydroxide
Cobalt(II) oxide
Cobalt(II) oxide (CoO)
Cobalt(II) sulfate
Cobalt(II) sulfate (cobaltous sulfate)
Cobalt(III) fluoride
Cobalt(III) fluoride (CoF3)
Cobalt(III) oxide
Cobalt(III) oxide (Co2O3)
Coenzyme A
Cohesion (chemistry)
Cold
Cold (temperature, perception and effects)
Colloid
Colloid: Definition, Types, Properties, and Applications
Colorimeter
Colorimeter: Principles, Components, History and Practical Uses
Colorimetric analysis
Colorimetric analysis: principles, equipment, and applications
Combinatorial chemistry
Combinatorial chemistry: principles, techniques and applications
Combustion
Combustion: principles, types, uses and environmental impact