Table 1.

The experimental solubilities (x_e) of PPD in various neat solvents (S) at “T = 298.2 K to 318.2 K and “p = 0.1 MPa” ^a.

S	x e
	T = 298.2 K	T = 303.2 K	T = 308.2 K	T = 313.2 K	T = 318.2 K
Water	5.75 × 10−6	6.91 × 10−6	8.37 × 10−6	1.00 × 10−5	1.26 × 10−5
Methanol	2.59 × 10−3	3.00 × 10−3	3.57 × 10−3	4.29 × 10−3	5.18 × 10−3
Ethanol	4.75 × 10−3	5.42 × 10−3	6.19 × 10−3	7.22 × 10−3	8.22 × 10−3
EG	6.43 × 10−3	7.51 × 10−3	8.96 × 10−3	1.05 × 10−2	1.27 × 10−2
IPA	8.15 × 10−3	9.13 × 10−3	1.06 × 10−2	1.23 × 10−2	1.44 × 10−2
PG	8.74 × 10−3	9.93 × 10−3	1.13 × 10−2	1.27 × 10−2	1.50 × 10−2
1-Butanol	1.19 × 10−2	1.36 × 10−2	1.59 × 10−2	1.84 × 10−2	2.11 × 10−2
2-Butanol	1.23 × 10−2	1.41 × 10−2	1.61 × 10−2	1.88 × 10−2	2.18 × 10−2
EA	4.37 × 10−2	4.79 × 10−2	5.42 × 10−2	6.01 × 10−2	6.81 × 10−2
Transcutol	2.76 × 10−1	2.90 × 10−1	3.06 × 10−1	3.25 × 10−1	3.46 × 10−1
PEG-400	3.19 × 10−1	3.38 × 10−1	3.62 × 10−1	3.89 × 10−1	4.12 × 10−1
DMSO	4.03 × 10−1	4.19 × 10−1	4.38 × 10−1	4.55 × 10−1	4.73 × 10−1
x idl	5.50 × 10−2	6.10 × 10−2	6.75 × 10−2	7.45 × 10−2	8.22 × 10−1

^a The standard uncertainties u are u(T) = 0.20 K, u(p) = 0.003 MPa and u_r(x_e) = 1.61%.