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. Author manuscript; available in PMC: 2016 Nov 1.
Published in final edited form as: J Chem Eng Data. 2015 Nov 17;60(12):3483–3495. doi: 10.1021/acs.jced.5b00751

Table 2.

Estimates of the mass diffusion constant D and concentration relaxation time τD= L2/(π2 D) in a liquid sample of thickness L= 10 mm at 80 °C [ 17].

liquid A impurity B PVB/PVA D (10−9 m2s−1) τD (h)
naphthalene nitrogen 3.6 × 105 3.6 0.8
diethyl phthalate nitrogen 2.5 × 107 0.23 12
diethyl phthalate maleic anhydride 8.9 × 101 0.16 18
TEMAH methyl ethylamine 2.4 × 103 0.37 8