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Official Journal of the Japan Wood Research Society

Table 2 Steady-state diffusion coefficients for trehalose, keratin, and PEG4000. Unit: × 10−9 m2 s−1

From: Diffusion of chemicals into archaeological waterlogged hardwoods obtained from the Thang Long Imperial Citadel site, Vietnam

No.

Species

U max (%)

Trehalose

Keratin

PEG4000

Longitudinal

Radial

Tangential

Longitudinal

Radial

Tangential

Longitudinal

Radial

Tangential

1

E. fordii

68

0.62

0.39

0.36

0.50

0.24

0.23

0.24

0.15

0.09

2

Dysoxylum sp.1

315

6.29

2.25

1.20

2.70

1.63

1.17

2.27

1.50

1.02

3

Garcinia sp.

330

8.93

2.34

1.72

6.66

1.80

1.55

6.07

1.70

1.19

4

Syzygium sp.

365

5.72

2.45

0.92

3.07

0.86

0.26

1.22

0.68

0.12

5

Afzelia sp.

385

12.70

2.83

1.90

10.80

2.52

1.77

8.96

2.35

1.52

6

Dysoxylum sp.2

393

3.19

1.59

0.72

3.00

1.29

0.25

2.53

0.61

0.24

7

Albizia sp.1

548

8.12

3.59

2.95

6.79

3.29

2.13

5.78

3.08

2.00

8

Albizia sp.2

621

6.40

1.75

1.68

5.61

1.57

1.27

5.02

0.86

0.83