Chemistry
Articles about matter, substances, reactions and chemical science.
Dry cell
Dry cell: portable electrochemical cell used in batteries
Dry cleaning
Dry cleaning: method, solvents, process, uses and environmental issues
Dubnium
Dubnium (element 105)
Duralumin
Dye
Dye: colorants for textiles and other materials
Dynamite
Dynamite: invention, composition, risks, and historical role
Dyotropic reaction
Dyotropic Reaction: Pericyclic Rearrangements with Simultaneous Dual Migrations
Dysprosium
Eau de Cologne
Eau de Cologne: history, composition, and uses
Einsteinium
Einsteinium (Es): synthetic actinide element, atomic number 99
Electrical cell
Electrical cell (electrochemical cell)
Electrochemistry
Electrocyclic reaction
Electrolysis
Electrolysis: Principles, Methods, and Industrial Uses
Electrolysis of water
Electrolysis of Water: Principles, Reactions, Uses and Development
Electrolyte
Electron affinity
Electron configuration
Electron configuration: arrangement, principles, and chemical significance
Electron shell
Electron shell: main energy levels in atoms — structure, history, and significance
An electron shell is a principal energy level in an atom where electrons are most likely found. This article covers shell structure, quantum rules, historical origin, examples, and
Electronegativity
Electronegativity: definition, scales, trends, and chemical significance
Electrophile
Electrophile (electron-accepting chemical species)
Electroplating
Element
Element: meanings in science, mathematics, technology, and culture
Elimination reaction
Elimination reaction (organic chemistry)
ELISA
ELISA: Enzyme-Linked Immunosorbent Assay — principles, types, and uses
ELISA (enzyme‑linked immunosorbent assay) is a laboratory method for detecting and quantifying proteins, antigens, or antibodies using enzyme-labeled antibodies and colorimetric, f
Emission spectrum
Emulsifier
Emulsion
Emulsion: formation, types, stability and common applications
Enamel
Enamel: Dental Tissue and Fused Glass Coatings
Enantiomer
Endothermic reaction
Enol
Enthalpy
Enthalpy of fusion
Enthalpy of fusion (latent heat of melting)
Enthalpy of vaporization
Environmental chemistry
Ephedrine
Ephedrine — natural alkaloid, stimulant and medicinal agent
Epoxide
Epoxide (oxirane): the three‑membered cyclic ether
Equilibrium constant
Equilibrium constant (chemical equilibrium)
Erbium
Erbium (Er) — properties, history, and uses
Ergastic substance
Ergastic substance: cellular non-protoplasmic materials
Erlenmeyer flask
Essential oil
Ester
Ester (organic functional group)
Ethane
Ethanol
Ethanol (ethyl alcohol): properties, production, uses, and safety
Ethylene
Ethylene (ethene): properties, production, and uses