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- D electron countDescription of the electron configuration
- D-block contractionReason behind some elements' anomalous behaviour
- Dakin oxidationOrganic redox reaction
- Dakin–West reactionReaction that converts amino acids into a keto-amides
- Dalton TransactionsDalton Transactions is a weekly peer-reviewed scientific journal covering original (primar
- Dangerous goodsSubstances harmful to people, property or the environment
- Daniell cellType of electrochemical cell
- DarmstadtCity in Hesse, Germany
- DarmstadtiumChemical element with atomic number 110 (Ds)
- Darzens halogenationDarzens halogenation is the chemical synthesis of alkyl halides from alcohols via the trea
- Darzens reactionChemical ring forming reaction
- David Adler Lectureship AwardThe David Adler Lectureship Award in the Field of Materials Physics is a prize that has be
- David EisenbergDavid S. Eisenberg (born 15 March 1939) is an American biochemist and biophysicist best kn
- Davy MedalChemistry award given by the Royal Society
- DeamidationChemical reaction
- DeaminationRemoval of an amino group from a molecule
- Dean–Stark apparatusChemical lab apparatus for collecting water from a reactor
- Debabrata GoswamiIndian chemist
- Debus–Radziszewski imidazole synthesisMulti-component reaction used for the synthesis of imidazoles
- DebyeCGS unit of electric dipole moment
- DecahydroxycyclopentaneDecahydroxycyclopentane is an organic compound with formula C5O10H10 or C5(OH)10. It is a
- DecantationProcess for the separation of mixtures
- DecarbonylationIn chemistry, decarbonylation is a type of organic reaction that involves the loss of carb
- DecarboxylationChemical reaction that removes a carboxyl group and releases carbon dioxide
- DEETInsect repellent
- DeformulationSet of analytical procedures in chemistry
- Degree of polymerizationNumber of monomeric units in a macromolecule or polymer
- Degree of unsaturationTerm which determines total number of rings and π bonds
- Dehydration reactionChemical reaction in which water is produced as a byproduct
- DehydrogenationChemical reaction involving the removal of hydrogen
- DehydrohalogenationChemical reaction which removes a hydrogen halide from a substrate
- Delta bondType of chemical bond
- Demjanov rearrangementChemical reaction
- Denise BarthomeufFrench chemist and researcher (1934–2004)
- Density of airMass per unit volume of the Earth's atmosphere
- DenticityNumber of atoms in a ligand that bond to the central atom of a coordination complex
- DeoxidizationMetallurgy/steelmaking method
- DeoxygenationChemical reaction removing oxygen atoms from a molecule
- DeprotonationRemoval of proton(s) from a molecule in an acid-base reaction
- Derek BartonEnglish chemist and Nobel Prize laureate
- Descriptor (chemistry)Type of notational prefix in chemical nomenclature
- DesiccantSubstance used to induce or sustain dryness
- DesiccatorDesiccators are sealable enclosures containing desiccants used for preserving moisture-sen
- Dess–Martin periodinaneChemical reagent
- Destructive distillationChemical process
- DesymmetrizationMolecular change in chemistry
- Detection limitLowest quantity observable with sufficient confidence above the background
- Determination of equilibrium constantsEquilibrium constants are determined in order to quantify chemical equilibria. When an equ
- DeuteriumIsotope of hydrogen with one neutron
- Di-π-methane rearrangementPhotochemical reaction
- Diagonal relationshipRelationship between elements on the periodic table
- Dialysis (chemistry)Process of separating molecules
- Diamide insecticidesClass of insecticide
- DiamineAmine with two amino groups
- Diammonium phosphateChemical compound
- DiamondForm of carbon
- Diarylide pigmentClass of organic compounds that are used as pigments
- DiastereomerMolecules which are non-mirror image, non-identical stereoisomers
- Diatomic moleculeMolecule composed of any two atoms
- DiazoChemical group (>C=N=N)
- Diazonium compoundGroup of organonitrogen compounds
- Dibenzo-1,4-dioxinDibenzo-1,4-dioxin, also dibenzodioxin or dibenzo-p-dioxin (dibenzo-para-dioxin), is a pol
- DiboraneChemical compound
- Diborane(2)Diborane(2), also known as diborene, is an inorganic compound with the formula B2H2. The n
- DibromofluoromethaneDibromofluoromethane is a mixed halomethane. It is soluble in alcohol, acetone, benzene an
- Dibutyltin dilaurateDibutyltin dilaurate (abbreviated DBTDL) is an organotin compound with the formula (CH3(CH
- DicarbonateChemical compound
- Dicarboxylic acidOrganic compound with two –COOH groups
- DicationDivalent positive ion
- DichlorodifluoromethaneChemical compound
- DichloromethaneChemical compound
- Dichloromethane (data page)Please find below supplementary chemical data about dichloromethane.
- DicoumarolDicoumarol (INN) or dicumarol (USAN) is a naturally occurring anticoagulant drug that depl
- Dielectric spectroscopyElectromagnetic measurement technique
- Diels–Alder reactionChemical reaction
- DieneCovalent compound that contains two double bonds
- Dienone–phenol rearrangementThe dienone–phenol rearrangement is a reaction in organic chemistry first reported in 1921
- Diethyl etherOrganic chemical compound
- Diethyl ether (data page)This page provides supplementary chemical data on diethyl ether.
- Diethyl selenideDiethyl selenide is an organoselenium compound with the formula C4H10Se. First reported in
- DiethylhydroxylamineDiethylhydroxylamine (DEHA) is an organic compound with the formula (C2H5)2NOH. Strictly,
- DiethylzincDiethylzinc (C2H5)2Zn, or DEZ, is a highly pyrophoric and reactive organozinc compound con
- Differential scanning calorimetryThermoanalytical technique
- Differential thermal analysisDifferential thermal analysis (DTA) is a thermoanalytic technique that is similar to diffe
- Diffusion-controlled reactionReaction rate equals rate of transport
- Diffusion-limited enzymeEnzyme rate limited by diffusion
- Diglycidyl etherDiglycidyl ethers are chemical compounds used as a reactive diluents for epoxy resin. Othe
- Dihydrogen cationMolecular ion
- Dihydrogen complexContaining intact H2 as a ligand
- Dihydrogen monoxide parodyParody where water is presented by an uncommon name
- Dihydrogen phosphateDihydrogen phosphate is an inorganic ion with the formula [H2PO4]−. Phosphates occur widel
- DihydroxylationChemical reaction where an alkene is converted to a vicinal diol
- Dihydroxymalonic acidDihydroxymalonic acid is an organic compound with formula C3H4O6 or HO-(C=O)-C(OH)2-(C=O)-
- DimerizationChemical process of joining two molecular entities by bonds of any kind
- DimethoxyethaneChemical compound
- DimethoxymethaneDimethoxymethane, also called methylal, is a colorless flammable liquid with a low boiling
- Dimethyl dicarbonateDimethyl dicarbonate (DMDC) is a colorless liquid with a pungent odor at high concentratio
- Dimethyl etherChemical compound
- Dimethyl fumarateDimethyl fumarate (DMF) is the methyl ester of fumaric acid and is named after the earth s
- Dimethyl sulfoxideOrganosulfur chemical compound used as a solvent
- Dimethyl sulfoxide (data page)This page provides supplementary chemical data on dimethyl sulfoxide.
- DimethylformamideChemical compound
- DimethylglycineDimethylglycine (DMG) is a derivative of the amino acid glycine with the structural formul
- Dinitrogen pentoxideChemical compound
- Dinitrogen tetroxideChemical compound
- Dinitrogen trioxideChemical compound
- Dinitrosyl iron complexIn biochemistry, dinitrosyl iron complexes (DNIC's) are coordination complexes with the fo
- DiolClass of organic compounds
- Dioxins and dioxin-like compoundsClass of chemical compounds
- Dioxygen in biological reactionsDioxygen (O2) plays an important role in the energy metabolism of living organisms. Free o
- DiphenylacetyleneDiphenylacetylene is the chemical compound C6H5C≡CC6H5. The molecule consists of two pheny
- DiphosphaneChemical compound
- DiphosphorusChemical compound
- Diphosphorus tetrachlorideDiphosphorus tetrachloride is an inorganic compound with a chemical formula P2Cl4. It is a
- Diphosphorus tetraiodideDiphosphorus tetraiodide is an orange crystalline solid with the formula P2I4. It has been
- DiradicalChemical species with two electrons occupying degenerate molecular orbitals
- Direct processThe direct process, also called the direct synthesis, Rochow process, and Müller-Rochow pr
- Direct reduced ironIron metal made from ore without a blast furnace
- Directed ortho metalationChemical reaction
- DirubidiumDirubidium is a molecular substance containing two atoms of rubidium found in rubidium vap
- Discovery and development of nucleoside and nucleotide reverse-transcriptase inhibitorsDiscovery and development of nucleoside and nucleotide reverse-transcriptase inhibitors (N
- Dishwasher detergentType of detergent used in a dishwasher
- Dishwashing liquidDetergent used for cleaning dishes
- Disodium citrateChemical compound
- Disodium helideChemical compound
- Disodium phosphateDisodium phosphate (DSP), or disodium hydrogen phosphate, or sodium phosphate dibasic, is
- Dispersion (chemistry)Chemical mixtures
- DisproportionationRedox reaction whose products have higher and lower oxidation states than the reactant
- Dissociation (chemistry)Separation of molecules or ionic compounds into smaller constituent entities
- Dissociation constantChemical property
- Dissociative substitutionIn chemistry, dissociative substitution describes a reaction pathway by which compounds in
- Dissolved organic carbonOrganic carbon classification
- Distance of closest approachThe distance of closest approach of two objects is the distance between their centers when
- DistillationMethod of separating mixtures
- Distilled waterWater purified by condensing it from steam
- DisulfideFunctional group with the chemical structure R–S–S–R′
- DisulfiteChemical compound
- Disulfurous acidDisulfurous acid, metabisulfurous acid or pyrosulfurous acid is an oxoacid of sulfur with
- DithiolOrganosulfur compound with two –SH groups
- DithionateThe dithionate (or metabisulfate) anion, S2O2−6, is a sulfur oxoanion derived from dithion
- Divergent synthesisMethod of chemical research
- Dividing line between metals and nonmetalsFeature of some periodic tables of the elements
- DNA nanotechnologyDesign and manufacture of artificial nucleic acid structures
- DodecaneDodecane (also known as dihexyl, bihexyl, adakane 12, or duodecane) is an oily liquid n-al
- DodecanolChemical compound
- Doebner–Miller reactionChemical reaction
- Dominique LangevinFrench physicist (born 1947)
- Domino topplingChain reaction involving standing domino tiles
- Donald J. CramDonald James Cram (April 22, 1919 – June 17, 2001) was an American chemist who shared the
- Donor numberMeasure of Lewis basicity
- Dose (biochemistry)Measured quantity of a medicine, nutrient, or pathogen which is delivered as a unit
- Dose fractionationDose fractionation effects are utilised in the treatment of cancer with radiation therapy.
- Double bondChemical bond involving four bonding electrons; has one sigma plus one pi bond
- Double layer (surface science)Molecular interface between a surface and a fluid
- Double layer forcesDouble layer forces occur between charged objects across liquids, typically water. This fo
- Double saltA double salt is a salt that contains two or more different cations or anions. Examples of
- Downs cellElectrochemical method for metallic sodium
- Dropping funnelA dropping funnel or addition funnel is a type of laboratory glassware used to transfer li
- Drug designInvention of new medications based on knowledge of a biological target
- Dry cleaningCleaning of fabrics in non-aqueous solvents
- Dry lubricantDry lubricants or solid lubricants are materials that, despite being in the solid phase, a
- DryingRemoval of water or another solvent by evaporation from a solid, semi-solid or liquid
- DubniumChemical element with atomic number 105 (Db)
- Ductile ironType of cast iron
- Dudley R. HerschbachAmerican chemist (born 1932)
- Duff reactionFormylation reaction used in organic chemistry
- DuPont Central ResearchCentral Research Department was the principal basic research organization of DuPont from 1
- Duquenois–Levine reagentMarijuana test
- DuraluminTrade name of age-hardenable aluminium alloy
- Dynamic Earth (Edinburgh)Dynamic Earth (originally known as Our Dynamic Earth) is a not-for-profit visitor attracti
- Dynamic kinetic resolution in asymmetric synthesisChemistry
- Dynamic mechanical analysisTechnique used to study & characterize materials
- Dynamic modulusDynamic modulus (sometimes complex modulus) is the ratio of stress to strain under vibrato
- DysprosiumChemical element with atomic number 66 (Dy)
