IUPAC Gold Book - Quantities

Quantities

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

quantity	symbol	referenced in	equation
saturation fraction, $s B$	$Math - math$	saturation fraction, $s B$	$s B$
scattering angle, $θ$	$Math - math$	scattering angle, $θ$	$θ$
sedimentation coefficient, $s$	$Math - math$	sedimentation coefficient, $s$	$s$
selectivity factor, $S f$	$Math - math$	selectivity factor, $S f$	$S f$
		selectivity factor, $S f$	$S f = log 10 ( f p X f m X )$
self inductance, $L$	$Math - math$	self inductance, $L$	$L$
sensitivity, $A$ in metrology and analytical chemistry	$Math - math$	sensitivity, $A$ in metrology and analytical chemistry	$A$
separation factor, $α$ in column chromatography	$Math - math$	separation factor, $α$ in column chromatography	$α$
		separation factor, $α$ in column chromatography	$α = V R 2 ' V R 1 ' = V N 2 V N 1 = t R 2 ' t R 1 ' = k 2 k 1$
separation factor, $α A , B$ in liquid-liquid distribution	$Math - math$	separation factor, $α A , B$ in liquid-liquid distribution	$α A , B$
	$Math - apply$	separation factor, $α A , B$ in liquid-liquid distribution	$α A , B = D A D B$
	$Math - apply$	separation factor, $α A , B$ in liquid-liquid distribution	$α > 1$
separation number, $SN$ in chromatography	$Math - math$	separation number, $SN$ in chromatography	$SN$
		separation number, $SN$ in chromatography	$SN = t R z + 1 − t R z w h z + w h z + 1 − 1$
	$Math - math$	separation number, $SN$ in chromatography	$TZ$
shear modulus, $G$	$Math - math$	shear modulus, $G$	$G$
shear strain, $γ$	$Math - math$	shear strain, $γ$	$γ$
shear stress, $τ$	$Math - math$	shear stress, $τ$	$τ$
shielding constant, $σ$	$Math - math$	shielding constant, $σ$	$σ$
		shielding constant, $σ$	$σ = B 0 − B B 0$
solid angle, $Ω$ , $ω$	$Math - math$	radiance, $L$	$Ω$
		radiant intensity, $I$	$I = d P / d Ω$
		radiant intensity, $I$	$I = P / Ω$
	$Math - math$	solid angle, $Ω$ , $ω$	$ω$
solvophobicity parameter, $Sp$	$Math - math$	solvophobicity parameter, $Sp$	$Sp$
		solvophobicity parameter, $Sp$	$Sp = 1 − M M hexadecane$
	$Math - math$	solvophobicity parameter, $Sp$	$S p$
specific activity, $a$ in radiochemistry	$Math - math$	specific activity, $a$ in radiochemistry	$a$
specific heat capacity, $c$	$Math - math$	specific heat capacity, $c$	$c$
specific volume, $v$	$Math - math$	specific volume, $v$	$v$
spectral fluence rate, $E λ , o$	$Math - math$	spectral fluence rate, $E λ , o$	$E λ , o$
spectral irradiance, $E λ$	$Math - math$	spectral irradiance, $E λ$	$E λ$
spectral photon exitance, $M p λ$	$Math - math$	spectral photon exitance, $M p λ$	$M p λ$
spectral photon flow, $Φ p λ$	$Math - math$	spectral photon flow, $Φ p λ$	$Φ p λ$
spectral photon flux (photon irradiance), $E p λ$	$Math - math$	absorbed (spectral) photon flux density	$q p , λ$
	$Math - math$	absorbed (spectral) photon flux density	$q n , p , λ$
	$Math - apply$	absorbed (spectral) photon flux density	$q p , λ 0 1 − 10 − A λ V$
	$Math - apply$	absorbed (spectral) photon flux density	$q n , p , λ 0 1 − 10 − A λ V$
	$Math - math$	spectral photon flux (photon irradiance), $E p λ$	$E p λ$
spectral photon radiance, $L p λ$	$Math - math$	spectral photon radiance, $L p λ$	$L p λ$
spectral radiance, $L λ$	$Math - apply$	radiance, $L$	$L = ∫ λ L λ ⁢ d λ$
		radiance, $L$	$L λ$
	$Math - math$	spectral radiance, $L λ$	$L λ$
spectral radiant energy, $Q λ$	$Math - math$	spectral radiant energy, $Q λ$	$Q λ$
spectral radiant exitance, $M λ$	$Math - apply$	radiant exitance, $M$	$M = ∫ λ M λ ⁢ d λ$
		radiant exitance, $M$	$M λ$
	$Math - math$	spectral radiant exitance, $M λ$	$M λ$
spectral radiant intensity, $I λ$	$Math - apply$	radiant intensity, $I$	$I = ∫ λ I λ ⁢ d λ$
		radiant intensity, $I$	$I λ$
	$Math - math$	spectral radiant intensity, $I λ$	$I λ$
spectral radiant power, $P λ$	$Math - math$	absorbed (spectral) radiant power density	$P λ$
	$Math - msubsup$	molar absorption coefficient, $ɛ$	$ɛ λ = 1 c l lg ( P λ 0 P λ ) = A λ c l$
		molar absorption coefficient, $ɛ$	$P λ 0$
		molar absorption coefficient, $ɛ$	$P λ$
		reflectance, $ρ$	$ρ λ = P λ refl P λ 0$
		reflectance, $ρ$	$P λ refl$
	$Math - math$	spectral radiant power, $P λ$	$P λ$
spectral sensitivity, $S λ$	$Math - fn$	spectral sensitivity, $S λ$	$S λ$
		spectral sensitivity, $S λ$	$S ac λ = Φ λ ɛ λ obs = sensitivity or actinometric factor$
specular reflectance (reflection factor), $ρ$ in optical spectroscopy	$Math - math$	specular reflectance (reflection factor), $ρ$ in optical spectroscopy	$ρ$
		specular reflectance (reflection factor), $ρ$ in optical spectroscopy	$ρ = P refl P 0$
speed, $v$ , $c$	$Math - apply$	kinetic energy, $E k$	$E k = m v 2 2$
		kinetic energy, $E k$	$v$
		speed, $v$ , $c$	$v$
	$Math - math$	speed, $v$ , $c$	$c$
		speed distribution function, $F c$	$c + d c$
spin-orbit coupling constant, $A$	$Math - math$	spin-orbit coupling constant, $A$	$A$
stoichiometric number, $ν$	$Math - apply$	cathodic transfer coefficient, $α c$	$α c ν = − R T n F ( ∂ ( ln ( \| I c \| ) ) ∂ E ) T , p , c i , ...$
		cathodic transfer coefficient, $α c$	$ν$
		mass transfer coefficient in electrochemistry	$k d = j ν n F ( c e − c 0 )$
Stokes number, $St$	$Math - math$	Stokes number, $St$	$St$
		Stokes number, $St$	$St = 2 τ ( V t − v t ) D p$
substance fraction, $x$	$Math - math$	substance fraction, $x$	$x$
surface amount, $n s$ , $n a$	$Math - math$	surface amount, $n s$ , $n a$	$n s$
	$Math - math$	surface amount, $n s$ , $n a$	$n a$
surface charge density, $σ$	$Math - math$	surface charge density, $σ$	$σ$
surface concentration, $Γ$
surface coverage, $θ$
surface density, $ρ A$ , $ρ S$	$Math - math$	surface density, $ρ A$ , $ρ S$	$ρ A$
	$Math - math$	surface density, $ρ A$ , $ρ S$	$ρ S$
surface excess, $n σ$	$Math - math$	surface excess, $n σ$	$n σ$
surface excess concentration (at an interface), $Γ$	$Math - math$	surface excess concentration (at an interface), $Γ$	$Γ$
surface tension, $γ$ , $σ$	$Math - math$	surface tension, $γ$ , $σ$	$γ$
	$Math - math$	surface tension, $γ$ , $σ$	$σ$
symmetry number, $s$	$Math - math$	symmetry number, $s$	$s$