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Chemistry

Basics

This section contains 14 articles.

1. Chemistry (Level 2)
   1. Alchemy (Level 4)
   2. Chemical engineer
   3. Chemist
2. Chemical law
3. Chemical safety
   1. Dangerous goods
   2. Regulation of chemicals
      1. GHS
      2. GHS hazard pictograms
      3. NFPA 704
      4. WHMIS
   3. Safety data sheet
4. Wet lab

This section contains 19 articles.

1. Analytical chemistry (Level 4)
2. Environmental chemistry (Level 4)
3. Inorganic chemistry (Level 3)
4. Organic chemistry (Level 3)
   1. Food chemistry
   2. Medicinal chemistry (Level 4)
   3. Organometallic chemistry (Level 4)
5. Physical chemistry (Level 3)
   1. Electrochemistry (Level 4)
   2. Nuclear chemistry (Level 4)
   3. Photochemistry (Level 4)
   4. Surface science
6. Theoretical chemistry
   1. Computational chemistry
      1. Molecular modelling
   2. Quantum chemistry (Level 4)
7. Materials science (Level 4)
   1. Polymer chemistry (Level 4)
   2. Solid-state chemistry

Principles

This section contains 11 articles.

1. Chemical bond (Level 3)
   1. Electron counting
      1. Octet rule
2. Covalent bond (Level 4)
   1. Single bond
   2. Double bond
   3. Triple bond
3. Hydrogen bond (Level 4)
4. Ionic bonding (Level 4)
   1. Polyatomic ion
5. Metallic bonding (Level 4)

This section contains 20 articles.

1. Mixture (Level 4)
2. Concentration
   1. Mass concentration (chemistry)
   2. Number density
3. Dispersion (chemistry) (Level 4)
4. Colloid (Level 4)
   1. Aerosol (Level 4)
   2. Emulsion (Level 4)
   3. Foam (Level 4)
   4. Gel (Level 4)
   5. Sol (colloid)
5. Solution (chemistry) (Level 4)
   1. Aqueous solution
   2. Solid solution
   3. Solubility
      1. Miscibility
   4. Solvation
   5. Solvent
   6. Tincture
6. Suspension (chemistry) (Level 4)

This section contains 7 articles.

1. Chemical nomenclature
2. Descriptor (chemistry)
3. IUPAC nomenclature of organic chemistry
4. IUPAC nomenclature of inorganic chemistry
5. Parent hydride
6. Systematic element name
7. Trivial name

This section contains 21 articles.

1. Periodic table (Level 3)
   1. Block (periodic table)
   2. Group (periodic table)
   3. Period (periodic table)
2. Atomic mass (Level 4)
   1. Mass number
   2. Relative atomic mass
   3. Standard atomic weight
3. Atomic number (Level 4)
4. Main-group element
5. Metal (Level 3)
   1. Heavy metals
      1. Toxic heavy metal
   2. Post-transition metal
6. Metalloid (Level 4)
7. Nonmetal
8. Periodic trends
   1. Atomic radius
   2. Electron affinity
   3. Electronegativity
   4. Ionization energy

This section contains 17 articles.

1. Chemical reaction (Level 3)
2. Conversion (chemistry)
3. Product (chemistry)
4. Reactivity (chemistry)
5. Reagent
6. Substrate (chemistry)
7. Yield (chemistry)
8. Catalysis (Level 3)
9. Chemical equation (Level 4)
10. Stoichiometry
    1. Law of definite proportions
    2. Law of multiple proportions
    3. Law of reciprocal proportions
11. Chemical equilibrium (Level 4)
    1. Le Chatelier's principle
    2. Microscopic reversibility
12. Chemical synthesis (Level 4)

This section contains 29 articles.

1. Substance (chemistry) (Level 4)
   1. Congener (chemistry)
   2. Isomer
   3. Natural product
2. Amount of substance (Level 4)
   1. Avogadro constant
3. Chemical element (Level 2)
   1. Allotropy (Level 4)
4. Chemical composition
   1. Chemical formula (Level 4)
      1. Empirical formula
      2. Structural isomer
      3. Tautomer
   2. Structural formula
      1. Cyclic compound
      2. Lewis structure
      3. Open-chain compound
   3. Molecular model
      1. Ball-and-stick model
      2. Molecular graphics
      3. Ribbon diagram
      4. Space-filling model
5. Chemical compound (Level 3)
   1. Molecule (Level 3)
   2. Diatomic molecule
   3. Inorganic compound (Level 4)
   4. Organic compound (Level 4)
      1. Aroma compound
6. Material

Chemical elements

s-Block

1. Hydrogen (Level 3)
   1. Hydrogen atom
   2. Isotopes of hydrogen
      1. Deuterium
      2. Tritium
   3. Liquid hydrogen
   4. Solid hydrogen
2. Helium (Level 4)
   1. Helium atom
   2. Helium-3
   3. Helium-4
   4. Liquid helium
      1. Superfluid helium-4

This section contains 9 articles.

1. Alkali metal (Level 4)
2. Lithium (Level 4)
3. Sodium (Level 4)
4. Potassium (Level 4)
   1. Potassium-40
5. Rubidium (Level 4)
6. Caesium (Level 4)
   1. Caesium-137
7. Francium (Level 4)

This section contains 7 articles.

1. Alkaline earth metal (Level 4)
2. Beryllium (Level 4)
3. Magnesium (Level 4)
4. Calcium (Level 4)
5. Strontium (Level 4)
6. Barium (Level 4)
7. Radium (Level 4)

p-Block

This section contains 7 articles.

1. Boron group
2. Boron (Level 4)
3. Aluminium (Level 4)
4. Gallium (Level 4)
5. Indium (Level 4)
6. Thallium (Level 4)
7. Nihonium

This section contains 18 articles.

1. Carbon group
2. Carbon (Level 3)
   1. Isotopes of carbon
      1. Carbon-12
      2. Carbon-14
   2. Activated carbon
   3. Allotropes of carbon
      1. Buckminsterfullerene
      2. Carbon nanotube (Level 4)
      3. Diamond (Level 4)
      4. Fullerene
      5. Graphene
      6. Graphite (Level 4)
3. Silicon (Level 3)
4. Germanium (Level 4)
5. Tin (Level 4)
6. Lead (Level 4)
7. Flerovium

This section contains 10 articles.

1. Pnictogen
2. Nitrogen (Level 3)
   1. Isotopes of nitrogen
   2. Liquid nitrogen
3. Phosphorus (Level 4)
   1. Allotropes of phosphorus
4. Arsenic (Level 4)
5. Antimony (Level 4)
6. Bismuth (Level 4)
7. Moscovium

This section contains 15 articles.

1. Chalcogen
2. Oxygen (Level 3)
   1. Isotopes of oxygen
   2. Allotropes of oxygen
      1. Ozone (Level 4)
      2. Singlet oxygen
      3. Triplet oxygen
   3. Liquid oxygen
3. Sulfur (Level 4)
   1. Allotropes of sulfur
      1. Octasulfur
4. Selenium (Level 4)
5. Tellurium (Level 4)
6. Polonium (Level 4)
7. Livermorium

This section contains 7 articles.

1. Halogen (Level 4)
2. Fluorine (Level 4)
3. Chlorine (Level 4)
4. Bromine (Level 4)
5. Iodine (Level 4)
6. Astatine (Level 4)
7. Tennessine

This section contains 7 articles.

1. Noble gas (Level 4)
2. Neon (Level 4)
3. Argon (Level 4)
4. Krypton (Level 4)
5. Xenon (Level 4)
6. Radon (Level 4)
7. Oganesson

d-Block

1. Transition metal (Level 4)
   1. Base metal
   2. Noble metal
      1. Platinum group
      2. Precious metal

This section contains 5 articles.

1. Group 3 element
2. Scandium (Level 4)
3. Yttrium (Level 4)
4. Lutetium (Level 4)
5. Lawrencium

This section contains 5 articles.

1. Group 4 element
2. Titanium (Level 4)
3. Zirconium (Level 4)
4. Hafnium (Level 4)
5. Rutherfordium

This section contains 5 articles.

1. Group 5 element
2. Vanadium (Level 4)
3. Niobium (Level 4)
4. Tantalum (Level 4)
5. Dubnium

This section contains 5 articles.

1. Group 6 element
2. Chromium (Level 4)
3. Molybdenum (Level 4)
4. Tungsten (Level 4)
5. Seaborgium

This section contains 6 articles.

1. Group 7 element
2. Manganese (Level 4)
3. Technetium (Level 4)
   1. Technetium-99m
4. Rhenium (Level 4)
5. Bohrium

This section contains 5 articles.

1. Group 8 element
2. Iron (Level 3)
3. Ruthenium (Level 4)
4. Osmium (Level 4)
5. Hassium

This section contains 5 articles.

1. Group 9 element
2. Cobalt (Level 4)
3. Rhodium (Level 4)
4. Iridium (Level 4)
5. Meitnerium

This section contains 5 articles.

1. Group 10 element
2. Nickel (Level 4)
3. Palladium (Level 4)
4. Platinum (Level 4)
5. Darmstadtium

This section contains 5 articles.

1. Group 11 element
2. Copper (Level 3)
3. Silver (Level 3)
4. Gold (Level 3)
5. Roentgenium

This section contains 5 articles.

1. Group 12 element
2. Zinc (Level 4)
3. Cadmium (Level 4)
4. Mercury (element) (Level 4)
5. Copernicium

f-Block

This section contains 16 articles.

1. Lanthanide (Level 4)
   1. Rare-earth element
2. Lanthanum (Level 4)
3. Cerium (Level 4)
4. Praseodymium (Level 4)
5. Neodymium (Level 4)
6. Promethium (Level 4)
7. Samarium (Level 4)
8. Europium (Level 4)
9. Gadolinium (Level 4)
10. Terbium (Level 4)
11. Dysprosium (Level 4)
12. Holmium (Level 4)
13. Erbium (Level 4)
14. Thulium (Level 4)
15. Ytterbium (Level 4)

This section contains 18 articles.

1. Actinide (Level 4)
2. Actinium (Level 4)
3. Thorium (Level 4)
4. Protactinium (Level 4)
5. Uranium (Level 4)
   1. Isotopes of uranium
      1. Uranium-238
      2. Uranium-235
6. Neptunium (Level 4)
7. Plutonium (Level 4)
8. Americium (Level 4)
9. Curium (Level 4)
10. Berkelium (Level 4)
11. Californium (Level 4)
12. Einsteinium
13. Fermium
14. Mendelevium
15. Nobelium

Periods

1. Period 1 element
2. Period 2 element
3. Period 3 element
4. Period 4 element
5. Period 5 element
6. Period 6 element
7. Period 7 element
   1. Superheavy element
   2. Synthetic element (Level 4)
   3. Transuranium element
8. Extended periodic table
   1. Ununennium
   2. Unbinilium
   3. Unbiunium
   4. Unbibium
   5. Unbiquadium
   6. Unbihexium

Acids and bases

This section contains 24 articles.

1. Acid (Level 4)
   1. Acid anhydride
   2. Solid acid
2. Amphoterism
3. Base (chemistry) (Level 4)
   1. Alkali
   2. Base anhydride
   3. Non-nucleophilic base
   4. Superbase
   5. Weak base
4. Brønsted–Lowry acid–base theory
   1. Conjugate (acid-base theory)
   2. Deprotonation
   3. Hydronium
   4. Protonation
5. Lewis acids and bases
   1. Electrophile
   2. HSAB theory
   3. Nucleophile
6. Acidity function
   1. pH (Level 4)
7. Acid strength
   1. Acid dissociation constant
8. Buffer solution

This section contains 19 articles.

1. Mineral acid
2. Aqua regia
3. Boric acid (Level 4)
4. Carbonic acid
5. Hydrochloric acid (Level 4)
6. Hydrofluoric acid (Level 4)
7. Hypochlorous acid
8. Nitric acid (Level 4)
9. Perchloric acid
10. Phosphoric acid (Level 4)
11. Sulfuric acid (Level 4)
12. Organic acid
    1. Sulfonic acid
13. Superacid
    1. Carborane acid
    2. Fluoroantimonic acid
    3. Fluorosulfuric acid
    4. Magic acid
    5. Triflic acid

This section contains 2 articles.

1. Ammonia solution
2. Lye

Alloys and ceramic compounds

1. Alloy (Level 3)
   1. Intermetallic
2. Interstitial defect
3. Network covalent bonding
4. Non-stoichiometric compound

This section contains 24 articles.

1. Amalgam (chemistry) (Level 4)
2. Colored gold
3. Duralumin
4. Electrum
5. Mischmetal
   1. Ferrocerium
6. Galinstan
7. Pewter
8. Solder

This section contains 5 articles.

1. List of copper alloys
2. Brass (Level 4)
3. Bronze (Level 3)
4. Constantan
5. Cupronickel

This section contains 10 articles.

1. Cast iron (Level 4)
2. Steel (Level 3)
   1. Alloy steel
      1. Spring steel
      2. Stainless steel (Level 4)
      3. Tool steel
   2. Carbon steel
   3. Wootz steel
3. Pig iron
4. Wrought iron (Level 4)

This section contains 11 articles.

1. Boron nitride
2. Carbide
   1. Silicon carbide
   2. Cementite
   3. Tungsten carbide
3. Ferrite (magnet)
4. Gallium nitride
5. Graphite oxide
6. Rare-earth barium copper oxide
   1. Yttrium barium copper oxide
7. Silicon dioxide

Molecular compounds

1. Carbon disulfide
2. Cyanogen
3. Syngas (Level 4)

This section contains 2 articles.

1. Sulfur hexafluoride
2. Uranium hexafluoride

This section contains 9 articles.

1. Carbon monoxide (Level 4)
2. Carbon dioxide (Level 3)
3. Chlorine dioxide
4. Nitric oxide
5. Nitrous oxide (Level 4)
6. Nitrogen dioxide
7. Oxygen difluoride
8. Sulfur dioxide
9. Sulfur trioxide

This section contains 23 articles.

1. Boranes
   1. Carborane
   2. Diborane
2. Pnictogen hydride
   1. Ammonia (Level 4)
   2. Arsine
   3. Diphosphane
   4. Hydrazine
   5. Methylamine
   6. Phosphine
   7. Stibine
3. Hydrogen chalcogenide
   1. Hydrogen peroxide (Level 4)
   2. Hydrogen sulfide
   3. Hydrogen selenide
   4. Polysulfane
4. Hydrogen halide
   1. Hydrogen bromide
   2. Hydrogen chloride
   3. Hydrogen fluoride
   4. Hydrogen iodide
5. Hydrogen cyanide
6. Hydroxyl radical

This section contains 11 articles.

1. Water (Level 2)
2. Properties of water (Level 4)
3. Hydrate
4. Ice (Level 4)
   1. Ice crystal
5. Purified water
6. Water vapor (Level 4)
   1. Steam
7. Heavy water
   1. Semiheavy water
   2. Tritiated water

Organic compounds

This section contains 10 articles.

1. Polymer backbone
   1. Side chain
2. Degree of unsaturation
3. Lipophilicity
4. Skeletal formula
5. Substituent
   1. Functional group
   2. Geminal
   3. Pendant group
   4. Vicinal (chemistry)

This section contains 10 articles.

1. Carbonyl group
2. Enol
3. Organophosphorus chemistry (Level 4)
4. Organosilicon chemistry (Level 4)
   1. Silicone (Level 4)
5. Organosulfur chemistry (Level 4)
   1. Allicin
   2. Allyl isothiocyanate
   3. Dimethyl sulfoxide
   4. Thiol (Level 4)

This section contains 2 articles.

1. Ferrocene
2. Tetraethyllead

Hydrocarbons

1. Hydrocarbon (Level 4)
   1. Creosote
   2. Naphtha
   3. Oil (Level 4)
      1. Petroleum (Level 3)
   4. Petroleum jelly
   5. Tar
      1. Coal tar
      2. Pine tar
   6. Wax
      1. Paraffin wax
   7. White spirit
2. Octane rating

This section contains 19 articles.

1. Aliphatic compound
2. Alicyclic compound
   1. Cycloalkane
      1. Cyclopropane
      2. Cyclobutane
      3. Cyclopentane
      4. Cyclohexane
      5. Adamantane
3. Alkane (Level 4)
   1. Methane (Level 4)
   2. Ethane (Level 4)
   3. Propane (Level 4)
   4. Butane (Level 4)
4. Alkene (Level 4)
   1. Ethylene (Level 4)
   2. Propylene (Level 4)
5. Alkyne (Level 4)
   1. Acetylene
   2. Polyyne

This section contains 9 articles.

1. Aromatic compound (Level 4)
2. Arene substitution pattern
3. Aromaticity
   1. Antiaromaticity
   2. Hückel's rule
4. Benzene (Level 4)
5. Toluene
6. Polycyclic aromatic hydrocarbon
   1. Naphthalene

Alcohols

1. Alcohol (chemistry) (Level 4)
2. Methanol (Level 4)
3. Ethanol (Level 4)
4. Isopropyl alcohol
5. 1-Propanol
6. Fatty alcohol
   1. Cetyl alcohol
   2. Dodecanol
   3. Stearyl alcohol
7. Phenol (Level 4)
8. Polyol
   1. Diol
      1. Ethylene glycol
      2. Geminal diol
   2. Glycerol

This section contains 5 articles.

1. Sugar alcohol
2. Erythritol
3. Mannitol
4. Sorbitol
5. Xylitol

Carboxylic acids

1. Carboxylic acid (Level 4)
2. Acetic acid (Level 4)
3. Benzoic acid
4. Citric acid (Level 4)
5. Ethylenediaminetetraacetic acid
6. Formic acid
7. Lactic acid (Level 4)
8. Malic acid
9. Oxalic acid
10. Tartaric acid

Aldehydes and ketones

1. Aldehyde (Level 4)
   1. Formaldehyde (Level 4)
   2. Acetaldehyde
2. Ketone (Level 4)
   1. Acetone (Level 4)

This section contains 13 articles.

1. Amide (Level 4)
   1. Urea (Level 4)
   2. Nylon (Level 4)
   3. DEET
   4. Dimethylformamide
2. Amine (Level 4)
   1. Cadaverine
   2. Ethylenediamine
   3. Putrescine
   4. Taurine
3. Nitrocellulose
4. Pyridine
5. TNT

This section contains 12 articles.

1. Ester (Level 4)
   1. Ethyl acetate
   2. Methyl salicylate
   3. Nitroglycerin
   4. Propylene carbonate
2. Ether (Level 4)
   1. Dimethyl ether
   2. Diethyl ether
   3. Epoxide
   4. Vanillin
   5. 1,4-Dioxane
   6. Tetrahydrofuran

This section contains 12 articles.

1. Halocarbon
2. Haloalkane (Level 4)
3. Chlorofluorocarbon
   1. Dichlorodifluoromethane
4. Organochlorine chemistry
   1. Carbon tetrachloride
   2. Chloroform
   3. Chloromethane
   4. Dichloromethane
5. Fluorocarbon
   1. Carbon tetrafluoride
6. Hydrofluorocarbon

Alkaloids

1. Capsaicin
2. Imidazole
3. Purine
   1. Uric acid
   2. Xanthine
      1. Theobromine
      2. Theophylline
4. Pyrimidine
5. Scopolamine
6. Strychnine

This section contains 5 articles.

1. Phenylpropanoid
2. Cinnamaldehyde
3. Coumarin
4. Eugenol
5. Safrole

This section contains 22 articles.

1. Polymer (Level 4)
   1. Monomer
   2. Oligomer
2. Epoxy
3. PFAS
4. Phenol formaldehyde resin
   1. Bakelite
5. Polyacrylonitrile
6. Polycarbonate
7. Polyethylene (Level 4)
   1. Polyethylene glycol
   2. Polyethylene terephthalate
8. Polyisoprene
9. Poly(methyl methacrylate)
10. Polypropylene (Level 4)
    1. Polypropylene glycol
11. Polystyrene
12. Polytetrafluoroethylene
13. Polyurethane
14. Polyvinyl acetate
15. Polyvinyl alcohol
16. Polyvinyl chloride (Level 4)

This section contains 9 articles.

1. Polyphenol
2. Flavonoid
   1. Anthocyanidin
   2. Anthocyanin
   3. Anthoxanthin
   4. Catechin
3. Lignin
4. Tannin (Level 4)
   1. Tannic acid

This section contains 21 articles.

1. Isoprene
2. Resin
   1. Rosin
   2. Shellac
3. Terpene
   1. Caryophyllene
   2. Humulene
   3. Limonene
   4. Pinene
      1. Turpentine
   5. Squalene
   6. Zingiberene
4. Terpenoid
   1. Camphor
   2. Carvone
   3. Citral
   4. Citronellal
   5. Eucalyptol
   6. Linalool
   7. Menthol
   8. Thymol

Salts and ions

This section contains 9 articles.

1. Ammonium
   1. Quaternary ammonium cation
2. Ash
   1. Potash
   2. Wood ash
3. Salt (chemistry) (Level 4)
   1. Acid salt
   2. Alkali salt
4. Zwitterion

This section contains 3 articles.

1. Borohydride
   1. Lithium borohydride
   2. Sodium borohydride

This section contains 2 articles.

1. Aluminium carbide
2. Calcium carbide

This section contains 8 articles.

1. Cyanide (Level 4)
2. Potassium cyanide
3. Sodium cyanide
4. Ferricyanide
   1. Potassium ferricyanide
5. Ferrocyanide
   1. Potassium ferrocyanide
   2. Prussian blue

This section contains 23 articles.

1. Halide
2. Bromide
   1. Potassium bromide
   2. Sodium bromide
3. Chloride (Level 4)
   1. Aluminium chloride
   2. Ammonium chloride
   3. Calcium chloride (Level 4)
   4. Copper(II) chloride
   5. Iron(III) chloride
   6. Magnesium chloride
   7. Potassium chloride
   8. Sodium chloride (Level 4)
   9. Zinc chloride
4. Fluoride
   1. Boron trifluoride
   2. Calcium fluoride
   3. Sodium fluoride
5. Iodide
   1. Lugol's iodine
   2. Potassium iodide
   3. Silver iodide
   4. Tincture of iodine

This section contains 4 articles.

1. Hydride
2. Lithium aluminium hydride
3. Lithium hydride
4. Sodium hydride

This section contains 8 articles.

1. Nitride
   1. Lithium nitride
   2. Silver nitride
   3. Titanium nitride
2. Azide
   1. Lead(II) azide
   2. Silver azide
   3. Sodium azide

This section contains 10 articles.

1. Electride
2. Noble gas compound
   1. Helium compounds
      1. Disodium helide
   2. Neon compounds
   3. Argon compounds
      1. Argon fluorohydride
   4. Krypton difluoride
   5. Xenon tetrafluoride
   6. Xenon hexafluoroplatinate

This section contains 29 articles.

1. Benzalkonium chloride
2. Crystal violet
3. Merbromin
4. Potassium bitartrate
5. Sodium benzoate
6. Sodium calcium edetate
7. Tetrasodium EDTA
8. Thiomersal

This section contains 10 articles.

1. Acetate
2. Aluminium triacetate
3. Ammonium acetate
4. Calcium acetate
5. Chromium(II) acetate
6. Copper(II) acetate
7. Lead(II) acetate
8. Potassium acetate
9. Sodium acetate
10. Zinc acetate

This section contains 8 articles.

1. Calcium citrate
2. Iron(III) citrate
   1. Ammonium ferric citrate
3. Magnesium citrate
4. Potassium citrate
5. Monosodium citrate
6. Disodium citrate
7. Trisodium citrate

This section contains 3 articles.

1. Glutamate flavoring
2. Monosodium glutamate
3. Monopotassium glutamate

This section contains 24 articles.

1. Oxide (Level 4)
2. Aluminium oxide
3. Copper(II) oxide
4. Iron oxide
   1. Iron(II) oxide
   2. Iron(II,III) oxide
   3. Iron(III) oxide
5. Manganese dioxide
6. Osmium tetroxide
7. Tin(IV) oxide
8. Titanium dioxide (Level 4)
9. Zinc oxide
10. Zirconium dioxide

This section contains 5 articles.

1. Calcium oxide
2. Lithium oxide
3. Magnesium oxide
4. Potassium oxide
5. Sodium oxide

This section contains 6 articles.

1. Peroxide
   1. Barium peroxide
   2. Potassium peroxide
   3. Sodium peroxide
2. Superoxide
   1. Potassium superoxide

This section contains 76 articles.

1. Oxyanion
2. Silicate (Level 4)
   1. Sodium silicate (Level 4)

This section contains 3 articles.

1. Borate
   1. Borax
   2. Sodium metaborate

This section contains 8 articles.

1. Bicarbonate
   1. Ammonium bicarbonate
   2. Sodium bicarbonate (Level 4)
      1. Baking powder
2. Carbonate (Level 4)
   1. Ammonium carbonate
   2. Calcium carbonate (Level 4)
   3. Sodium carbonate (Level 4)

This section contains 9 articles.

1. Chlorate
   1. Potassium chlorate
2. Chlorite
3. Hypochlorite
   1. Sodium hypochlorite
4. Perchlorate
   1. Ammonium perchlorate
   2. Potassium perchlorate
   3. Sodium perchlorate

This section contains 5 articles.

1. Hydroxide
2. Calcium hydroxide
3. Magnesium hydroxide
4. Potassium hydroxide (Level 4)
5. Sodium hydroxide (Level 4)

This section contains 16 articles.

1. Chromate and dichromate
   1. Lead(II) chromate
      1. Chrome yellow
   2. Potassium chromate
   3. Potassium dichromate
   4. Sodium chromate
   5. Sodium dichromate
2. Manganate
   1. Potassium manganate
3. Permanganate
   1. Potassium permanganate
   2. Sodium permanganate
4. Vanadate
   1. Ammonium metavanadate
   2. Sodium metavanadate
   3. Sodium orthovanadate

This section contains 9 articles.

1. Nitrate (Level 4)
   1. Ammonium nitrate (Level 4)
   2. Lead(II) nitrate
   3. Potassium nitrate (Level 4)
   4. Silver nitrate
   5. Sodium nitrate (Level 4)
2. Nitrite
   1. Ammonium nitrite
   2. Sodium nitrite

This section contains 6 articles.

1. Phosphate
   1. Ammonium dihydrogen phosphate
   2. Diammonium phosphate
   3. Trisodium phosphate
2. Phosphite (ion)
   1. Basic lead phosphite

This section contains 17 articles.

1. Sodium dithionite
2. Sulfite
3. Sulfate (Level 4)
   1. Alum (Level 4)
      1. Potassium alum
   2. Aluminium sulfate
   3. Ammonium sulfate (Level 4)
   4. Calcium sulfate
   5. Copper(II) sulfate
   6. Iron(II) sulfate
   7. Iron(III) sulfate
   8. Magnesium sulfate (Level 4)
   9. Sodium sulfate (Level 4)
   10. Vitriol
   11. Zinc sulfate
4. Thiosulfate
   1. Sodium thiosulfate

This section contains 11 articles.

1. Sulfide
2. Cadmium sulfide
3. Calcium sulfide
   1. Lime sulfur
4. Iron(II) sulfide
5. Magnesium sulfide
6. Mercury sulfide
7. Molybdenum disulfide
8. Potassium sulfide
9. Sodium sulfide
10. Zinc sulfide

Analysis

This section contains 8 articles.

1. Qualitative inorganic analysis
2. Quantitative analysis (chemistry)
3. Elemental analysis
4. Combustion analysis
5. Cheminformatics
6. Instrumental chemistry
7. Electroanalytical methods
8. Radioanalytical chemistry

This section contains 11 articles.

1. Chemical test
   1. Complexometric indicator
   2. PH indicator
      1. Litmus
      2. Phenolphthalein
   3. Redox indicator
      1. Methylene blue
2. Flame test
3. Gravimetric analysis
   1. Thermogravimetric analysis
4. Titration

This section contains 22 articles.

1. Calorimetry
2. Mass spectrometry (Level 4)

This section contains 7 articles.

1. Coulometry
   1. Voltammetry
      1. Cyclic voltammetry
      2. Hydrodynamic voltammetry
      3. Polarography
2. Dielectric spectroscopy
3. Electrophoresis

This section contains 13 articles.

1. Spectroscopy (Level 4)
   1. Absorption spectroscopy (Level 4)
2. Atomic spectroscopy
   1. Atomic absorption spectroscopy
   2. Atomic emission spectroscopy
3. Fluorescence correlation spectroscopy
4. Infrared spectroscopy
   1. Fourier-transform infrared spectroscopy
5. Microwave spectroscopy
6. Raman spectroscopy
7. Ultrafast laser spectroscopy
8. Ultraviolet–visible spectroscopy
9. X-ray spectroscopy

Reactions and synthesis

This section contains 9 articles.

1. Dissociation (chemistry)
2. Isomerization
3. Radical (chemistry) (Level 4)
4. Reaction mechanism (Level 4)
   1. Arrow pushing
   2. Chain reaction
   3. Elementary reaction
   4. Reaction intermediate
5. Reversible reaction

This section contains 38 articles.

1. Organic reaction
   1. Leaving group
2. Addition reaction
   1. Cycloaddition
   2. Electrophilic addition
   3. Free-radical addition
   4. Nucleophilic addition
3. Aldol condensation
4. Caramelization
5. Diels–Alder reaction
6. Elimination reaction
   1. E1cB-elimination reaction
   2. Ei mechanism
7. Grignard reaction
8. Haloform reaction
9. Hydrogenation
10. Maillard reaction
11. Polymerization
    1. Step-growth polymerization
    2. Chain-growth polymerization
       1. Radical polymerization
       2. Ring-opening polymerization
    3. Chain transfer
    4. Emulsion polymerization
12. Rearrangement reaction
    1. 1,2-rearrangement
    2. Allylic rearrangement
    3. Olefin metathesis
    4. Pericyclic reaction
13. Substitution reaction (Level 4)
    1. Nucleophilic substitution
       1. Acyl group
       2. Nucleophilic aromatic substitution
       3. SN1 reaction
       4. SN2 reaction
       5. SNi
    2. Electrophilic substitution
14. Wittig reaction

This section contains 11 articles.

1. Redox (Level 3)
2. Half-reaction
3. Oxidation state
4. Oxidizing agent
5. Reducing agent
6. Combustion (Level 4)
   1. Fire (Level 2)
7. Corrosion (Level 4)
   1. Rust
   2. Tarnish
8. Disproportionation

This section contains 13 articles.

1. Acid–base reaction (Level 3)
2. Chemical decomposition
   1. Electrolysis (Level 4)
   2. Hydrolysis
   3. Kipp's apparatus
   4. Thermal decomposition
      1. Cracking (chemistry)
      2. Destructive distillation
      3. Pyrolysis
3. Haber process (Level 4)
4. Precipitation (chemistry)
5. Salt metathesis reaction
6. Water–gas shift reaction

This section contains 10 articles.

1. Convergent synthesis
2. Direct process
3. Divergent synthesis
4. Electrosynthesis
5. Enantioselective synthesis
6. One-pot synthesis
7. Organic synthesis
   1. Retrosynthetic analysis
   2. Semisynthesis
8. Total synthesis

Separation processes

1. Separation process
   1. Theoretical plate

This section contains 8 articles.

1. Chromatography (Level 4)
2. Column chromatography
3. High-performance liquid chromatography
4. Ion chromatography
5. Gas chromatography
6. Gel permeation chromatography
7. Thin-layer chromatography
8. Van Deemter equation

This section contains 22 articles.

1. Phase separation
2. Air separation
3. Drying
   1. Desiccant
   2. Freeze drying
   3. Vacuum drying
   4. Spray drying
4. Flash evaporation
   1. Vapor–liquid separator
5. Fractional freezing
   1. Eutectic system

This section contains 11 articles.

1. Distillation (Level 4)
2. Azeotrope
   1. Azeotropic distillation
   2. Dean–Stark apparatus
3. Continuous distillation
4. Fractional distillation
   1. Condenser (laboratory)
   2. Fractionating column
   3. Random column packing
5. Steam distillation
6. Vacuum distillation

This section contains 26 articles.

1. Absorption (chemistry)
2. Adsorption
   1. Physisorption
   2. Chemisorption
   3. Langmuir adsorption model
   4. Freundlich equation
   5. BET theory
3. Cyclonic separation
4. Dialysis (chemistry)
5. Extraction (chemistry)
   1. Liquid–liquid extraction
   2. Soxhlet extractor
6. Filtration (Level 4)
   1. Cross-flow filtration
   2. Suction filtration
   3. Membrane
   4. Microfiltration
   5. Ultrafiltration
   6. Nanofiltration
   7. Reverse osmosis
7. Recrystallization (chemistry)
   1. Fractional crystallization (chemistry)
8. Sedimentation
   1. Flocculation
   2. Settling
9. Stripping (chemistry)

Chemical engineering

1. Chemical process
   1. Process design
2. Chemical reactor
   1. Batch reactor
   2. Semibatch reactor
   3. Continuous stirred-tank reactor
   4. Plug flow reactor model
   5. Laminar flow reactor
   6. Microreactor
3. Unit operation
   1. Mass transfer
   2. Mixing (process engineering)

Theory

This section contains 24 articles.

1. Coordination complex
   1. Chelation
   2. Coordination geometry
      1. Bite angle
      2. Coordination sphere
      3. Ligand cone angle
   3. Crystal field theory
   4. Ligand
   5. Ligand field theory
2. Molecular geometry
   1. Bent molecular geometry
   2. Linear molecular geometry
   3. Octahedral molecular geometry
   4. Tetrahedral molecular geometry
   5. Trigonal planar molecular geometry
   6. Trigonal pyramidal molecular geometry
   7. VSEPR theory
3. Valence bond theory (Level 4)
   1. Modern valence bond theory
      1. Linear combination of atomic orbitals
   2. Orbital hybridisation
   3. Resonance (chemistry)
   4. Pi bond
   5. Sigma bond