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Journal of Chemistry
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2020
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Article
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Tab 5
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Research Article
Experimental Study for Influence of Surfactants Chemical Microstructures on Wetting Effect about Coal Dust in Tongchuan Mining Area
Table 5
Percentages of different carbon types in
13
C-NMR spectra of the surfactants.
No.
1
6.90
—
6.90
1.51
5.39
1.51
—
93.10
4.76
19.98
68.36
2
8.93
8.93
—
—
—
—
—
91.07
4.43
61.22
25.42
3
2.27
2.27
—
—
—
—
—
97.73
3.42
31.49
62.82
4
33.54
—
33.54
29.06
4.48
—
29.06
66.46
5.27
41.62
19.57