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. 2020 Jun 13;25(12):2743. doi: 10.3390/molecules25122743

Table 1.

Experimental solubilities (xe) of piperine (PPN) in mole fraction in different “Transcutol-HP (THP) + water” mixtures (m) at “T = 298.2–318.2 K” and “p = 0.1 MPa” a.

m x e
T = 298.2 K T = 303.2 K T = 308.2 K T = 313.2 K T = 318.2 K
0.0 1.03 × 10−5 1.17 × 10−5 1.31 × 10−5 1.47 × 10−5 1.59 × 10−5
0.1 2.57 × 10−5 2.85 × 10−5 3.19 × 10−5 3.55 × 10−5 3.80 × 10−5
0.2 6.20 × 10−5 6.88 × 10−5 7.61 × 10−5 8.40 × 10−5 9.01 × 10−5
0.3 1.59 × 10−4 1.71 × 10−4 1.86 × 10−4 1.99 × 10−4 2.15 × 10−4
0.4 3.71 × 10−4 4.07 × 10−4 4.42 × 10−4 4.79 × 10−4 5.09 × 10−4
0.5 9.06 × 10−4 9.80 × 10−4 1.08 × 10−3 1.16 × 10−3 1.25 × 10−3
0.6 2.23 × 10−3 2.39 × 10−3 2.56 × 10−3 2.74 × 10−3 2.88 × 10−3
0.7 5.40 × 10−3 5.74 × 10−3 6.10 × 10−3 6.51 × 10−3 6.80 × 10−3
0.8 1.35 × 10−2 1.40 × 10−2 1.47 × 10−2 1.55 × 10−2 1.63 × 10−2
0.9 3.26 × 10−2 3.37 × 10−2 3.53 × 10−2 3.70 × 10−2 3.87 × 10−2
1.0 7.88 × 10−2 8.12 × 10−2 8.44 × 10−2 8.79 × 10−2 9.10 × 10−2
x idl 5.13 × 10−2 6.02 × 10−2 7.06 × 10−2 8.26 × 10−2 9.63 × 10−2

a The relative uncertainties ur are ur(T) = 0.010, ur(m) = 0.001%, u(p) = 0.003 and ur(xe) = 0.11.