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IUPAC Compendium of Chemical Terminology

 

[A] [B] [C] [D] [E] [F] [G] [H] [I] [J] [K] [L] [M]
[N] [O] [P] [Q] [R] [S] [T] [U] [V] [W] [X] [Y] [Z]

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chi-parameter
cadium-helium laser
cage
cage compound
cage effect
Cahn-Ingold-Prelog system
calcination
calcined coke
calibration (in analysis)
calibration component
calibration curve
calibration function (in analysis)
calibration gas mixture (in atmospheric chemistry)
calibration material (in analysis)
calibration mixture (in analysis)
calibration sample (in analysis)
calixarenes
calorie
calorimetric titration
calorimetry
candela
canonical form
canonical rate constant
canonical variational transition-state theory (CVTST)
capacitance (of a plate capacitor), C
capacitance hygrometer
capillary column (in chromatography)
capillary condensation
captodative effect
capture
capture cross-section
capture gamma-radiation
carbaboranes
carbamates
carbanion
carbena
carbenes
carbene analogues
carbene metal complexes
carbene radical anions
carbene radical cations
carbenium centre
carbenium ion
carbenoids
carbinolamines
carbinols
carbinyl cations
carbocation
carbocyclic compounds
carbodiimides
carbohydrates
carbon
carbonaceous mesophase
carbon artifact
carbon black
carbon-carbon composite
carbon cenospheres
carbon cloth
carbon dioxide laser (CO2 laser)
carbon electrode
carbon felt
carbon fibre
carbon fibre fabrics
carbon fibres type HM
carbon fibres type HT
carbon fibres type IM
carbon fibres type LM
carbon fibres type UHM
carbonitriles
carbonium ion
carbonization
carbon loading (of the packing material) (in liquid chromatography)
carbon material
carbon mix
carbon whiskers
carbonyl compounds
carbonyl imides
carbonyl imines
carbonyl oxides
carbonyl ylides
carboranes
carboxamides
carboxamidines
carboxylic acids
carbylamines
carbynes
carbyne metal complexes
carbynium ions
carotenes
carotenoids
carrier
carrier (in radioanalytical chemistry)
carrier atom (in organic reaction mechanisms)
carrier-free
carrier gas
carrier protein
carry-over
carry-over effect
cascade impactor
catabolism
catabolite repression
catalase
catalymetric titration
catalysed rate of reaction
catalysis
catalysis law
catalyst
catalyst (in solvent extraction)
catalyst ageing
catalyst deactivation
catalyst decay
catalytic activity (of an enzyme), z
catalytic activity concentration, b
catalytic activity content, z/m
catalytic activity fraction (of an isozyme)
catalytic coefficient
catalytic concentration
catalytic content
catalytic cracking
catalytic current
catalytic current, limiting
catalytic dehydrocyclization
catalytic domain (of a polypeptide)
catalytic fraction
catalytic graphitization
catalytic hydrocracking
catalytic hydrodesulfurization
catalytic hydrogenolysis
catalytic methanation
catalytic reforming
catalytic thermometric titration
cataphoresis (usage discouraged)
catecholamines
catena-
catenanes (catena compounds)
cathode
cathodic transfer coefficient
cation
cation exchange
cation-exchange polymer
cation exchanger
cationic polymer
cationic polymerization
cationotropic rearrangement
cationotropy
cation radical
cavitands
cavity dumping (in photochemistry)
cDNA
ceiling value (CV)
ceilometer (in atmospheric chemistry)
cell constant (of a conductivity cell)
cell error (in spectrochemical analysis)
cell line
Celsius temperature, t, theta
centi
central atom
centre (of a Mossbauer spectrum)
centre of chirality
centrifugal (centripetal) acceleration, arot
centrifugal barrier
centrifugal flow
centrifugal force
centrifugal radius, r
cephalins (kephalins)
cephalosporins
cephams
cephems
ceramic filter
Cerenkov detector
Cerenkov effect
Cerenkov radiation
chain (in polymers)
chain axis (of a polymer)
chain branching
chain carrier
(chain) conformational repeating unit (of a polymer)
chain-ending step
chain fission yield
chain folding (in polymer crystals)
chain initiation
chain length, delta
chain-orientational disorder (in polymer crystals)
chain polymerization
chain-propagating reaction
chain reaction
chain scission (of a polymer)
chain-termination reaction
chain transfer
chair, boat, twist
chair-chair interconversion
chalcones
chamber saturation (in gas chromatography)
change of a quantity
change ratio of a quantity
channel
channel black
channel photomultiplier tube
chaperon
char
characteristic (in analytical chemistry)
characteristic group (in organic nomenclature)
characteristic length (in thin films)
characteristic mass for integrated absorbance
characteristic mass for peak absorption
characteristic mass (in electrothermal atomization), mc
characteristic potential
characteristic ratio (in polymers)
characteristic scale (in thin films)
characteristic X-radiation
characteristic X-ray emission
charcoal
charge
charge density, rho
charge-exchange ionization (in mass spectrometry)
charge-exchange reaction
charge hopping
charge-inversion mass spectrum
charge number, z
charge number (in inorganic nomenclature)
charge number (of a cell reaction), n, , z
charge-permutation reaction
charge population
charge recombination
charge separation
charge shift
charge-stripping reaction
charge-transfer adsorption
charge-transfer complex
charge-transfer device (in radiation detection)
charge-transfer reaction (in mass spectrometry)
charge-transfer (CT) state
charge-transfer step (of an electrode reaction)
charge-transfer (CT) transition
charge transfer transition to solvent (CTTS)
charring
chelate
chelating polymer
chelation
chelatometric titration
cheletropic reaction
chelotropic reaction
chemical actinometer
chemical activation
chemical adhesion
chemical adsorption
chemical amount
chemical amplification
chemical bond
chemical decomposition
chemical diffusion
chemical dosimeter
chemical element
chemical equilibrium
chemical flux, phi
chemical induction (coupling)
chemical ionization (in mass spectrometry)
chemical isotope exchange
chemical laser
chemically induced dynamic nuclear polarization (CIDNP)
chemical measurement process (CMP)
chemical modification
chemical oxygen demand (COD)
chemical potential
chemical reaction
chemical reaction equation
chemical relaxation
chemical shift (in NMR), delta
chemical shift (in photoelectron and Auger spectra)
chemical species
chemical species (of an element)
chemical substance
chemical vapour generation (in spectrochemical analysis)
chemical yield
chemiexcitation
chemiflux
chemi-ionization (in mass spectrometry)
chemiluminescence
chemiluminescence analyser
chemiluminescent methods of detection (in analysis)
chemisorption (chemical adsorption)
chemometrics
chemoselectivity (chemoselective)
chemospecificity
chemostat
chimney effect (in atmospheric chemistry)
chiral
chiral mobile phase
chiral selector
chiral stationary phase (in liquid chromatography)
chirality
chirality axis
chirality centre
chirality element
chirality plane
chirality sense
chiroptic/chiroptical
chirotopic
chloramines
chlorocarbons
chlorohydrins
chloronium ions
cholesteric phase
chromatogram
chromatograph (noun)
chromatograph (verb)
chromatographic detector
chromatography
chromophore
chromosome
chronic toxicity
CIDEP (Chemically Induced Dynamic Electron Polarization)
CIDNP (Chemically Induced Dynamic Nuclear Polarization)
CIEEL (Chemically Initiated Electron Exchange Luminescence)
cine-substitution
CIP priority
C. I. P. system
circular development
circular dichroism
circular elution
circular frequency
cis- (in inorganic nomenclature)
cis conformation (in polymers)
cis-fused
cisoid conformation
cistactic polymer
cis, trans
cis-trans isomers
class (a) metal ion
class (b) metal ion
class of helix (in polymers)
clathrates
clausius
clean surface
clean up (in spectrochemical analysis)
clearance
clearance (in toxicology)
clearing point
clinal
CLOGP values
clone
closed film
closed-shell molecular systems
closed system (in spectrochemical analysis)
closo-
cloud (in atmospheric chemistry)
cloud point
cloud-point curve
cloud-point temperature
cluster
cluster analysis
cluster ion (in mass spectrometry)
coacervation
coagulation (flocculation) (in colloid chemistry)
coal-derived pitch coke
coalescence
coalescence (in colloid chemistry)
coalification
coal tar pitch
cobalamines
codon
coefficient
coefficient of haze (COH)(in atmospheric chemistry)
coenzyme
coextraction
cofactors
coherence length (in thin films),
coherent radiation
coherent scattering
coherent source (in spectrochemistry)
coherent structure
coherent system of units (of measurement)
coherent (derived) unit (of measurement)
coincidence circuit
coincidence resolving time
co-ions
coke
coke breeze
coking
col (saddle point)
CO2 laser
cold neutrons
collection
collection efficiency (in atmospheric chemistry)
collection gas flow system (in spectrochemical analysis)
collector (in atmospheric chemistry)
collector (scavenger)
colligation
collimation
collimator
collinear reaction
collisional activation (collisionally activated dissociation)(in mass spectrometry)
collisional broadening (of a spectral line)
collisional excitation (in mass spectrometry)
collision complex
collision cross-section, sigma
collision density
collision diameter, d
collision efficiency
collision frequency
collision-induced dissociation (in mass spectrometry)
collision number
collision theory
colloid
colloidal
colloidal carbon
colloidal dispersion
colloidal electrolyte
colloidally stable
colloidal suspension
colloid osmotic pressure (Donnan pressure)
colorimeter
colour indicator
column (in chromatography)
column chromatography
column volume (in chromatography), Vc
combination electrode
combined sample
comb macromolecule
comb polymer
combustion gas
commensurate-incommensurate transition
common black film
common-ion effect (on rates)
communities (consortia, syntrophic or synergistic associations)
compact layer (in electrochemistry)
comparative molecular field analysis (CoMFA)
comparator (in radioanalytical chemistry)
compartmental analysis
compatibility
compatibilization
compatible polymer blend
compensation (in catalysis)
compensation (in stereochemistry)
compensation effect
competition
competitive binding assay
competitive inhibition (of catalysis)
complementary binding sites
complementary DNA (cDNA)
complex
complex coacervation
complex mechanism
complex-mode reaction
complexometric titration
complex reaction
component
composite
composite mechanism
composite membrane
composite reaction
composite sample
compositional heterogeneity (of polymers)
composition of pure air (in atmospheric chemistry)
compressibility factor
compression factor, Z
comproportionation
Compton effect
Compton electron
Compton scattering
computational chemistry
computer-assisted drug design (CADD)
computer-assisted molecular design (CAMD)
computer-assisted molecular modeling (CAMM)
concave isotherm (in chromatography)
concentrated phase (in polymer chemistry)
concentration
concentration-cell corrosion
concentration distribution ratio (in chromatography), Dc
concentration factor (in solvent extraction)
concentration gradient, grad C
concentration in experimental surface (or surface concentration)
concentration overpotential
concentration-sensitive detector (in chromatography)
concentration thermometric technique (in enthalpimetric analysis)
concerted process
concerted reaction
condensation (in atmospheric chemistry)
condensation nuclei (CN)(in atmospheric chemistry)
condensation polymerization (polycondensation)
condensation reaction
condensative chain polymerization
conditional (formal) potential
conditional rate constant of an electrode reaction
conditioning (in solvent extraction)
conductance, G
conducting polymer
conducting polymer composite
conduction band
conductivity, gamma, sigma
confidence level
confidence limits (about the mean)
configuration (electronic)
configuration (stereochemical)
configurational base unit (in polymers)
configurational disorder (in polymers)
configurational homosequence (in polymers)
configurational repeating unit (in polymers)
configurational sequence (in polymers)
configurational unit (in polymers)
configuration interaction (CI)
confined atomizer
conformation
conformational analysis
conformational analysis (in drug design)
conformational disorder (in polymers)
conformational repeating unit (of a polymer)
conformer
congener
conglomerate
congruent transition
coning and quartering (in analytical chemistry)
conjugated system (conjugation)
conjugate solutions
conjugation
conjugation (in gene technology)
conjugation labelling (in radioanalytical chemistry)
conjugative mechanism
conjunctive name
connectivity
conrotatory
consecutive reactions
consecutive steps
conservation of orbital symmetry
consignment (in analytical chemistry)
consistency
consolute point
constituent
constitution
constitutional heterogeneity (of polymers)
constitutional homosequence
constitutional isomerism
constitutional repeating unit (CRU) (in polymers)
constitutional sequence (in polymers)
constitutional unit
contact angle
contact ion pair
contact potential difference (Volta potential difference)
contamination
content
continuity inversion (in solvent extraction)
continuous analyser
continuous bed packing (in liquid chromatography)
continuous flow
continuous-flow cell (in spectrochemical analysis)
continuous flow enthalpimetry
continuous indication analyser
continuous phase domain
continuously curved chain (in polymers)
continuous measuring cell
continuous operation (in analysis)
continuous precipitation
continuous transition
contour length (in polymers)
contributing structure
controlled atmosphere (in atmospheric chemistry)
control material (in analysis)
control sample (in analysis)
convection (as applied to air motion)
convenience sample
conventional transition-state theory
conventional true value
conversion electron
conversion spectrum
convex isotherm (in chromatography)
co-oligomer
co-oligomerization
cooperative transition
cooperativity
coordinate covalence
coordinate link
coordination
coordination entity
coordination number
coordination polyhedron (polygon)
coordinatively saturated complex
coordinatively unsaturated complex
copolymer
copolymerization
copolymer micelle
copper vapour laser
coprecipitation
copy number (in biotechnology)
core atom (in organic reaction mechanisms)
core-shell morphology
coronands (coronates)
corrected emission spectrum
corrected excitation spectrum
corrected retention volume (in gas chromatography)
correlation analysis
correlation coefficient
correlation diagram
correlation energy
corrinoids (cobalamines, corphyrins, corrins, vitamin B12 compounds)
corrosion
corrosion cell
corrosion potential
cosolvent
cotectic
coulomb integral
Coulomb repulsion
coumarins
count
counter-current flow
counter-ions
counter tube
counting efficiency
counting loss
counting rate
coupled cluster (CC) method
coupled (indicator) reaction (in analysis)
coupled simultaneous techniques (in analysis)
coupling
coupling agent
coupling constant (spin-spin), J
covalent bond
covalent network
Cox-Yates equation
cracking
craze
crazing
cream
creaming
cream volume
cresols
critical embryo
critical energy (threshold energy)
critical excitation energy (in in situ microanalysis), Eq
critical ion-concentration in an ionomer
critical micelle concentration (cmc)
critical point 1993, 65, 2399
critical point 2004, 76, 1999 (supersedes an earlier definition)
critical pressure
critical quenching radius
critical solution composition
critical solution point
critical solution temperature
critical study
critical temperature
critical thickness (of a film)
cross-conjugation
crossed electric and magnetic fields (in mass spectrometry)
crossed molecular beams
cross-flow filtration (in biotechnology)
crossing over (in biotechnology)
crosslink
crosslinking
cross-over concentration, c*
cross reaction
crowding (in solvent extraction)
crown
crown conformation
crud (in solvent extraction)
cryogenic
cryogenic sampling
cryptand
cryptate
crystal diffraction spectrometer
crystal field (1997, 69, 1267)
crystal field (1999, 71, 1932)
crystal field splitting
crystal laser
crystallinity
crystallization
cumulative double bonds
cumulative fission yield
cumulative sample
cumulenes
cumulonimbus cloud (in atmospheric chemistry)
cumulus cloud (in atmospheric chemistry)
cupola
curie
curing
current density
current density (relative local)
current distribution
current efficiency
current migration
current yield
Curtin-Hammett principle
curve-crossing model
cut off (in aerosol sizes)(in atmospheric chemistry)
cut-off filter
CVD diamond
CW
cyanates
cyanides
cyanine dyes
cyanogenic
cyanohydrins
cybotactic region
cycles per second
cyclic acid anhydrides (cyclic anhydrides)
cyclitols
cyclization
cyclo-
cycloaddition
cycloalkanes
cycloalkyl groups
cyclodepsipeptides
cyclodextrins
cycloelimination
cyclohexadienyl cations
cyclone (collector)(in atmospheric chemistry)
cyclophanes
cyclopolymerization
cycloreversion
cyclosilazanes
cyclosiloxanes
cyclotron
cylindrical morphology
cytochrome P450
cytochromes
sigma-constant


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