What is the Abraham general solvation model and how is it applied to isobutyl acetate?

Label:chem

Topic
Aims to create predictive expressions for solute transfer into isobutyl acetate using the Abraham model.
Answer
Two multi-linear equations are derived:
log P = 0.234 + 0.351E – 0.471S – 1.050A – 4.982B + 4.212V
log K = 0.173 – 0.353E + 1.183S + 2.463A + 0.936L
(N = 49, SD = 0.112 log units, R² ≥ 0.99 for both). The model uses solute descriptors (E, S, A, B, V, L) to predict water-to-solvent (log P) and gas-to-solvent (log K) partition coefficients.
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