# Subcritical Extraction of Coal Tar Slag and Analysis of Extracts and Raffinates
## 3 Results and Discussion
### GC-MS Testing of Coal Tar Slag Extracts
\begin{table}
\begin{tabular}{c c c c c} \hline \hline
**No.** & **Compound Names** & **Proposed** & **Molecular Weight** & **Relative Content, \%** \\ \hline  & Heniccosane & C\({}_{21}\)H\({}_{44}\) & 296.60 & \\
16 & Pentacosane & C\({}_{25}\)H\({}_{25}\) & 352.70 & 3.89 \\  & Tetracontane & C\({}_{40}\)H\({}_{22}\) & 563.10 & \\  & 1,1-dicydohexyl-Heptane & C\({}_{19}\)H\({}_{36}\) & 264.50 & \\
17 & Cyclohexane, & C\({}_{14}\)H\({}_{26}\) & 194.36 & 0.19 \\  & 1-(cyclohexylmethyl)-2-methyl-, cis- & C\({}_{14}\)H\({}_{26}\) & 194.36 & \\  & Cyclohexane, 1-(cyclohexylmethyl)-4-methyl- & C\({}_{54}\)H\({}_{110}\) & 759.40 & \\
19 & Eicosane & C\({}_{20}\)H\({}_{42}\) & 282.50 & 0.78 \\  & Hexadecane, 2,6,10,14-tetramethyl- & C\({}_{20}\)H\({}_{42}\) & 282.50 & \\  & Pentatriacontane & C\({}_{35}\)H\({}_{72}\) & 492.90 & \\
20 & 2-Methylhexacosane & C\({}_{27}\)H\({}_{56}\) & 380.70 & 10.47 \\  & Octacosane, 2-methyl- & C\({}_{29}\)H\({}_{60}\) & 408.80 & \\  & 7,7-Diethylheptadecane & C\({}_{21}\)H\({}_{44}\) & 296.60 & \\
21 & Pentadecane, 6-methyl- & C\({}_{16}\)H\({}_{34}\) & 226.44 & 2.42 \\  & Hentaromatane & C\({}_{31}\)H\({}_{64}\) & 436.80 & \\  & Octacosane, 2-methyl- & C\({}_{29}\)H\({}_{60}\) & 408.80 & \\
23 & Heptadecane, 2,6,10,15-tetramethyl- & C\({}_{21}\)H\({}_{44}\) & 296.60 & 0.86 \\  & Hexadecane, 2,6,10,14-tetramethyl- & C\({}_{20}\)H\({}_{42}\) & 282.50 & \\  & Cyclohexane, octadecyl- & C\({}_{24}\)H\({}_{48}\) & 336.60 & \\
25 & Cyclohexane, nonadecyl- & C\({}_{25}\)H\({}_{50}\) & 350.70 & 0.85 \\  & 2-Cyclohexylmonadecane & C\({}_{25}\)H\({}_{50}\) & 350.70 & \\ \hline  & 11-Methyltricosane & C\({}_{24}\)H\({}_{50}\) & 338.70 & \\
27 & Carbonic acid, octadecyl vinyl ester & C\({}_{21}\)H\({}_{40}\)O\({}_{5}\) & 340.50 & 1.14 \\  & Carbonic acid, eicosyl vinyl ester & C\({}_{23}\)H\({}_{44}\)O\({}_{5}\) & 368.60 & \\  & Tetracontane & C\({}_{40}\)H\({}_{82}\) & 563.10 & \\
30 & Dotriacontane & C\({}_{32}\)H\({}_{66}\) & 450.90 & 16.35 \\  & Pentacosane & C\({}_{25}\)H\({}_{52}\) & 352.70 & \\  & Pentadecane, 2,6,10,14-tetramethyl- & C\({}_{19}\)H\({}_{40}\) & 268.50 & \\
32 & 11-Methylpentacosane & C\({}_{26}\)H\({}_{54}\) & 366.70 & 1.90 \\  & 11-Methyltricosane & C\({}_{24}\)H\({}_{50}\) & 338.70 & \\  & 3,3-Diethylpentadecane & C\({}_{19}\)H\({}_{40}\) & 268.50 & \\
33 & 3,3,13,13-Tetraethylpentadecane & C\({}_{23}\)H\({}_{48}\) & 324.60 & 0.87 \\  & Hentaromatane & C\({}_{31}\)H\({}_{44}\) & 436.80 & \\  & Dotriacontane & C\({}_{32}\)H\({}_{66}\) & 450.90 & \\
34 & Tetracontane & C\({}_{40}\)H\({}_{82}\) & 563.10 & 4.52 \\  & Pentacosane & C\({}_{25}\)H\({}_{52}\) & 352.70 & \\
35 & Pentacosane & C\({}_{25}\)H\({}_{52}\) & 352.70 & \\
37 & Dotriacontane & C\({}_{32}\)H\({}_{66}\) & 450.90 & \\  & 2-Methylheptacosane & C\({}_{28}\)H\({}_{58}\) & 394.80 & \\
37 & Dotriacontane & C\({}_{32}\)H\({}_{66}\) & 450.90 & 4.41 \\  & Tetrapentacontane & C\({}_{54}\)H\({}_{110}\) & 759.40 & \\  & Octacosane, 2-methyl- & C\({}_{29}\)H\({}_{60}\) & 408.80 & \\
40 & Pentatriacontane & C\({}_{35}\)H\({}_{72}\) & 492.90 & 1.71 \\  & Carbonic acid, octadecyl vinyl ester & C\({}_{21}\)H\({}_{40}\)O\({}_{5}\) & 340.50 & \\  & 11-Methyltricosane & C\({}_{24}\)H\({}_{50}\) & 338.70 & \\
41 & Pentatriacontane & C\({}_{35}\)H\({}_{72}\) & 492.90 & 5.33 \\  & Carbonic acid, octadecyl vinyl ester & C\({}_{21}\)H\({}_{40}\)O\({}_{3}\) & 340.50 & \\  & 2-Methylhexacosane & C\({}_{27}\)H\({}_{56}\) & 380.70 & \\
42 & Pentatriacontane & C\({}_{35}\)H\({}_{72}\) & 492.90 & 4.16 \\  & Hexacoane, 1-iodo- & C\({}_{26}\)H\({}_{53}\)I & 492.60 & \\  & 17.alpha(H),21.beta.(H)-Hopane & C\({}_{30}\)H\({}_{52}\) & 412.70 & \\  & 28-Nor-17.alpha.(H)-hopane & C\({}_{29}\)H\({}_{50}\) & 398.70 & 0.40 \\  & A’-Neogammancer-22(29)-ene & C\({}_{30}\)H\({}_{50}\) & 410.70 & \\  & Tetrapentacontane & C\({}_{54}\)H\({}_{110}\) & 759.40 & \\
45 & Eicosane & C\({}_{20}\)H\({}_{42}\) & 282.50 & 2.91 \\  & Dotriacontane & C\({}_{22}\)H\({}_{66}\) & 450.90 & \\
17.alpha.(H),21.beta.(H)-Homohopane & C\({}_{30}\)H\({}_{52}\) & 412.70 & 0.64 \\  & 28-Nor-17.alpha.(H)-hopane & C\({}_{29}\)H\({}_{50}\) & 398.70 & \\ \hline \hline \end{tabular}
\end{table}