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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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beta
beta-cleavage (in mass spectrometry)
beta-decay
beta-particle
backbone
back donation
back electron transfer
back extraction
backflush
background (of a radiation measuring device)
background concentration (level) (in atmospheric chemistry)
background mass spectrum
background radiation
backscatter
back scatter coefficient (in in situ microanalysis)
back scattered electrons (BSEs) (in in situ microanalysis)
backscattering spectroscopy
back washing
Baeyer strain
baffle chamber (in atmospheric chemistry)
bag filter (in atmospheric chemistry)
baghouse (in atmospheric chemistry)
Bainite transition
baking (in carbon chemistry)
Baldwin's rules
bandgap energy
bandpass filter
band spectra
bar
barbiturates
barn
Barton reaction
basal
base
base electrolyte
base kind of quantity
baseline (in chromatography)
baseline concentration (in atmospheric chemistry)
baseline error (in spectrochemical analysis)
base pairing
base peak (in mass spectrometry)
base quantity
base unit (of measurement)
basicity
basicity function
basis function
basis set
batch (in analytical chemistry)
batch injection calorimetry
batch operation (in analysis)
batch reactor
Bates-Guggenheim convention
bathochromic shift (effect)
bead-rod model
bead-spring model
beam current (in in situ microanalysis)
beam diameter (in in situ microanalysis)
beam-gas experiments
becquerel
bed volume (in chromatography)
Beer-Lambert law (or Beer-Lambert-Bouguer law)
before mass analysis (in mass spectrometry)
Bell-Evans-Polanyi principle
benchmark dose (BMD) and lower effective dose (LED)
bending of energy bands
Bent's rule
benzenium ions
benzenonium ions
benzylic groups
benzylic intermediates
benzynes
Berry pseudorotation
betaines
betweenanenes
bias
biased linear pulse amplifier
bias error
bifunctional catalysis
bilayer
bimodal distribution
bimolecular
binder
binder (in chromatography)
binder coke
binding energy
binding site
Bingham flow
binodal
bioassay
bioavailability (general)
bioavailability (in pharmacokinetics)
biocatalyst
biochemical (biological) oxygen demand (BOD)
biochip
bioconjugate
bioconversion
biodegradable polymer
biodegradation
bioelectronics
bioisostere
biological effect monitoring
biological exposure index (BEI)
biological half life
biological monitoring
biological tolerance values for working materials (Biologische Arbeitsstoff Toleranz Werte (BAT)
bioluminescence
biomarker (2001, 73, 1022)
biomarker (2004, 76, 1042)
biomass
biomimetic
biopolymers
bioreactor
biosensor
biosphere (in atmospheric chemistry)
biosynthesis
biotechnology
biotransformation
biphotonic excitation
biphotonic process
bipolymer
biradical
biradicaloid
bisecting conformation (eclipsing conformation)
bismuthanes
bismuthines
bisphenols
bivane (in atmospheric chemistry)
black film
blank value (in analysis)
blaze-angle (in spectrochemical analysis)
bleaching (in photochemistry)
block
block copolymer
block macromolecule
block polymer
blooming
blotting (in biotechnology)
blowdown (in atmospheric chemistry)
blue shift
boat
Bodenstein approximation
body burden
bohr
Bohr magneton
Bohr radius
bolometer
Boltzmann constant
bomb-digestion (in spectrochemical analysis)
bond
bond dissociation
bond-dissociation energy, D
bond-dissociation energy (BDE) (in theoretical chemistry)
bonded phase (in chromatography)
bond energy (in theoretical chemistry)
bond energy (mean bond energy)
bond-energy-bond-order method
bonding molecular orbital
bonding number
bond length
bond migration
bond number
bond opposition strain
bond orbital
bond order (1994, 66, 1090)
bond order (1999, 71, 1927)
bond ring-sector
boranes
boranylidenes
borderline mechanism
borenes
borinic acids
Born - Oppenheimer (BO) approximation
boronic acids
borylenes
boson
boundary layer (in atmospheric chemistry)
bound fraction (in radioanalytical chemistry)
bowsprit (flagpole)
branch (side chain, pendant chain) (in polymers)
branched chain (in polymers)
branched polymer
branching chain reaction
branching decay
branching fraction
branching index (in polymers)
branching ratio
branch point (in polymers)
branch unit (in polymers)
break (of a foam)
break (of an emulsion)
Bredt's rule
breeching (in atmospheric chemistry)
breeze (in atmospheric chemistry)
Bremsstrahlung
bridge
bridged carbocation
bridgehead
bridge index
bridge solution (in pH measurement)
bridging ligand
bromohydrins
bromonium ions
Bronsted acid
Bronsted base
Bronsted relation
Brooks and Taylor structure
Brownian motion
brush macromolecule
bubble column
bubbler (in atmospheric chemistry)
buffer-addition technique (in analytical flame spectroscopy)
bulk concentration (in electroanalysis)
bulk mesophase
bulk rheology
bulk sample
bulk strain
Bunnett-Olsen equations
Bunsen burner
Bunte salts
burning tension (of an electrical arc)
burning velocity (of a flame front) (in flame emission and absorption spectrometry), vb
burn-up
burn-up fraction
bypass injector (in gas chromatography)
pi-bond
sigma-bond


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