Toothpaste

Solid content w% ± SD

Ash content w% ± SD

Main abrasive material

Alkalinity of ash expressed in w% equiv. CaCO₃

Floating experiment

T1

15.53 ± 1.87

85.13 ± 0.72

Silica

0.65 ± 0.50

(−)

T2

13.67 ± 0.07

90.99 ± 1.18

Silica

0.88 ± 0.06

(−)

T3

43.35± 1.33

91.33 ± 0.25

CaCO₃

quant. (104.0± 0.0)

(−)

T4

20.20 ± 1.30

87.27 ±1.07

Silica

0.86 ± 0.17

(−)

T5

40.31 ± 0.23

97.26 ± 0.56

CaCO₃

quant. (100.1 ± 0.0)

(−)

T6

22.63 ± 0.42

88.73 ± 2.20

Silica

- (no alkalinity)

(−)

T7

23.81 ± 0.52

88.60 ± 3.72

Silica

1.13 ± 0.48

(−/+)

T8

16.38 ± 1.12

82.31 ± 0.97

Silica

0.95 ± 0.03(5)

(−)

T9

18.52 ± 1.04

91.85 ± 2.61

Silica

1.25 ± 0.95

(−)

T10

38.83 ± 3.02

96.04 ± 0.76

CaCO₃

quant. (105 ± 0.5)

(−)

T11

15.25 ± 0.39

90.10 ± 1.87

Silica

(−)

T12

18.93 ± 0.47

87.43 ± 3.67

Silica

1.08 ± 0.38

(−)

T13

40.13 ± 1.07

93.93 ± 1.14

CaCO₃ and others

quant. (100.2 ± 0.1)

(−/+)

T14

40.71 ± 0.33

98.39 ± 0.53

CaCO₃

quant. (107.89 ± 0.12)

(−)

T15

48.55 ± 0.28

93.68 ± 0.64

CaCO₃

quant. (100.4 ± 1.4)

(+)

T16

39.64 ± 0.90

69.50 ± 0.95

Alumina/aluminum hydroxide

0.61 ± 0.26

(−)

T17

36.67 ± 1.44

90.91 ± 2.29

CaCO₃

94.85 ± 3.20

(−)

T18

39.69 ± 2.20

95.06 ± 0.56

CaCO₃

quant. (106.4 ± 0.8)

(+)

T19

20.35 ± 2.54

80.54 ± 3.92

Silica

1.41 ± 0.59

(−)

T20

17.12 ± 0.56

87.51 ± 2.14

Silica, mica

0.92 ± 0.34

(−)

T21

43.35 ± 0.58

95.38 ± 0.77

CaCO₃

68.20 ± 5.90

(−)

T22

14.25 ± 0.31

84.79 ± 2.14

Silica

- (no alkalinity)

(+)

T23

15.67 ± 0.19

78.26 ± 3.17

Silica

- (no alkalinity)

(−)

T24

37.97 ± 0.30

95.42 ± 0.73

CaCO₃

quant. (100.26 ± 0.12)

(−)

T25

41.33 ± 2.19

97.63 ± 0.29

CaCO₃

98.30 ± 1.05

(−)

T26

24.29 ± 1.55

79.20 ± 6.58

Silica

- (no alkalinity)

T27

11.18 ±0.12

76.41 ± 0.85

Silica and alumina

- (no alkalinity)

(−)

T28

16.73 ± 1.05

85.96 ± 4.66

Silica

- (no alkalinity)

(−)

T29

18.5 ± 1.31

74.85 ± 0.74

Silica

- (no alkalinity)

(−)

T30

16.85 ± 0.28

82.66 ± 2.41

Silica

- (no alkalinity)

(−)

T31

16.99 ± 0.84

79.07 ± 4.63

Silica and others

5.3 ± 2.3

(−)

S1

27.0 ± 1.16

95.0 ± 0.96

Silica and CaCO₃

91.1 ± 0.2

(−)

S2

16.18 ± 0.54

84.43 ± 2.24

Silica

0.86 ± 0.08

(−)

H1

20.34 ± 0.59

83.31 ± 0.60

Silica and PE MP

0.95 ± 0.01

(+)