Table 1 Analysed chemical composition (wt.%) and properties of the glasses.

From: Iodine solubility and speciation in glasses

Sample

T (°C)

P (bar)

Iodine source

starting amount I (mol%)

SiO2 (wt.%)

B2O3 (wt.%)

Na2O (wt.%)

I (wt.%)

Density (g/cm3)

Vm (cm3/mol)

Tg (K)

N4

SiO2/(SiO2 + B2O3)

notes

pristine glasses

NBS80 air

1450

   

79.23

0

19.82

0

2.370 (9)

25.51

  

1.00

 

NBS80

1400

1500

  

79.21

0

19.76

0

2.394 (2)

25.25

697.1

 

1.00

 

NBS60 air

1100

   

58.35

23.2

19.48

0

2.495 (5)

25.02

855.2

0.71

0.74

 

NBS60

1400

1500

  

57.48

22.87

19.47

0

2.512 (2)

24.85

854.7

0.74

0.74

 

NBS40 air

1100

   

32.6

50.55

16.11

0

2.317 (12)

28.03

789.2

0.4

0.43

 

NBS40

1400

1500

  

32.56

49.26

16.12

0

2.332 (1)

27.82

788.6

0.40

0.43

 

NBS20 air

1100

   

14.39

72.17

14.59

0

2.176 (4)

30.75

740.2

0.32

0.19

 

NBS20

1400

1500

  

14.59

66.92

14.49

0

2.198 (1)

30.38

718.4

0.28

0.20

 

NBS00 air

950

   

0

87.86

12.62

0

2.078 (11)

32.99

699.2

0.21

0.00

 

NBS00

1400

1500

  

0

82.93

11.74

0

2.075 (1)

32.99

 

0.23

0.00

White patina

NaIO 3 series: NBSx.y

NBS80.08

1500

1500

NaIO3

2

77.96

0

18.75

1.71 (8)

2.406 (3)

25.35

659.0

 

1.00

I2 bubbles inside the glass

NBS60.1

1500

1500

NaIO3

2

56.01

21.03

18.95

2.03 (9)

2.540 (2)

24.80

784.2

 

0.76

 

NBS40.1

1500

1500

NaIO3

2

31.89

46.43

16.16

2.37 (6)

2.344 (1)

27.97

713.5

 

0.44

 

NBS20.1

1500

1500

NaIO3

2

14.05

66.8

14.58

2.12 (6)

2.208 (1)

30.57

688.8

 

0.20

 

NBS00.1

1500

1500

NaIO3

2

0.08

84.46

12.25

2.04 (5)

2.119 (3)

32.66

590.8

 

0.00

 

I 2 series: NBSx-yI 2

NBS80-1.07I2

1200

1500

I2

2

78.95

2.66

18.85

2.22 (12)

2.373 (1)

25.77

730.2

 

1.00

 

NBS80-1.13I2

1200

1500

I2

10

76.62

2.11

18.48

2.28 (19)

2.316 (1)

26.42

  

1.00

I2 bubbles inside the glass

NBS80-0.8I2

1200

1500

I2

18.2

70.42

4.93

23.06

1.64 (70)

2.468 (10)

24.75

  

1.00

I2 bubbles inside the glass

NBS60-2.5*I2

1200

1500

I2

2.5

n.d.

n.d.

n.d.

n.d.

      

NBS60-0.9I2

1200

1500

I2

9.5

59.51

22.74

14.98

1.88 (17)

2.495 (1)

25.24

 

0.68

0.75

heterogeneous

NBS60-0.8I2

1200

1500

I2

18.1

63.7

22.18

9.13

1.64 (23)

2.460 (1)

25.53

  

0.77

heterogeneous

NBS40-2.1I2

1200

1500

I2

18.5

33.64

51.07

6.56

3.91 (3)

2.135 (1)

31.17

536.2

0.17

0.43

white crystals

NBS20-1.9I2

1200

1500

I2

2

14.07

66.87

13.89

3.57 (5)

2.212 (1)

30.74

697.2

0.26

0.20

 

NBS20-5.1I2

1200

1500

I2

10.1

13.85

63.35

10.61

8.99 (50)

2.189 (1)

31.99

590.0

0.20

0.20

Yellowish, Transparent

NBS20-4.3I2

1200

1500

I2

18

14.61

60.69

6.54

7.09 (13)

2.080 (7)

33.50

513.0

 

0.22

Orange, Transparent

NBS00-2.3I2

1200

1500

I2

2

0.07

82.33

11.25

4.17 (6)

2.100 (7)

33.32

499.0

0.22

0.00

 

NBS00-9*I2

1200

1500

I2

9

n.d.

n.d.

n.d.

n.d.

2.177 (3)

  

0.18

  
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