Table 2 Major functional constituents in untreated and processed coal samples.

From: An investigative and simulative study on the wetting mechanism of alkaline dust suppressant acting on long-flame coal

The fitting way

Region

Raw coal

0.05 wt%SAS60

0.05 wt% SAS60 and

1.0 wt%Na2CO3

Wave area

Percentage /%

Wave area

Percentage /%

Wave area

Percentage /%

Gaussian

A

17.81

32.21%

23.63

37.81%

28.25

31.31%

B

1.55

2.80%

1.68

2.69%

4.12

4.57%

C

33.60

60.77%

34.11

54.58%

51.35

56.92%

D

2.33

4.21%

3.07

4.91%

6.50

7.20%