Chemistry Reference
In-Depth Information
TABLE 5.20 (
Continued
)
QCARs with Less Numerous Physicochemical Properties Used to Predict Cation Toxicity
The heat of formation of inorganic oxides (ΔH
o
)
The heat of formation of aqueous ion (ΔH
aq ion
)
Atomic number (AN)
Difference in ionization potentials between ion oxidation number (OX) and (OX - 1) (ΔIP)
Atomic weight (AW)
Enthalpy of hydration (ΔH
h
)
Density (ρ)
Ionic Radius (IR)
Atomic Radius (AR)
Stability constant of metal ion complexes with EDTA (log K (EDTA))
Formation constants with ATP (log K (ATP))
Stability constants for AMP with divalent metal ions (log K (AMP))
Misono and Saito (1970) softness parameter of (Y')
Stability constant of metal ion complexes with AMP-2 (log K (AMP-2))
Stability constant of metal ion complexes with AMP-3 (log K (AMP-3))
Observed stability constants of metal ion-acetato complexes (log K (Ac))
Calculated constant of metal ion complexes with NH
3
(log K (NH
3
))
Enthalpy of formation of sulfides (ΔH
s
)
Stability constant of metal ion complexes with sulfate (log K (sulfate))
Selected average of metal concentration in soil (molar concentration at 10% moisture, log M
soil
)
