C2.1.2.1 Thermal Analysis of Hydrocarbons
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C2.1.2.1 Thermal Analysis of Hydrocarbons
In order to determine the number of hydrogen atoms as compared with the number of carbon atoms, hydrocarbons can be separated into their elements by thermal decomposition. With gaseous hydrocarbons, this can be done with a filament in a combustion chamber. There the gas is split into hydrogen and carbon black (soot). The ratio of hydrogen to carbon in the compound can be derived directly from the increase in gas volume. In experiment C2.1.2.1, the gases methane and ethane are studied in this way.
Components:
| 1 | 666 428 | Panel frame C100, two-level, for CPS |
| 1 | 666 460 | Combustion chamber with filament, CPS |
| 2 | 666 4660 | Adhesive magnetic board, 300 mm |
| 4 | 666 4664 | Holder, magnetic, size 4, 27...29 mm |
| 2 | 665 914 | Gas syringe, 100 ml with 3-way stopcock |
| 1 | 666 468 | Blank panel, 300 mm, CPS |
| 1 | 666 467 | Blank panel, 200 mm, CPS |
| 1 | 726 21 | Equipment platform, 350 mm |
| 1 | 501 45 | Connecting lead, 19 A, 50 cm, red/blue, pair |
| 1 | 521 55 | High current power supply |
| 1 | 660 987 | Minican pressurised gas canister, methane |
| 1 | 660 988 | Minican pressurised gas canister, ethane |
| 1 | 660 980 | Fine regulating valve for minican gas canisters |
| 1 | 667 194 | Silicone tubing, 7 mm diam., 1 m |
| 1 | 604 510 | Tubing connector, 4...15 mm |
| 1 | 667 197 | Silicone tubing, 4 mm diam., 1 m |
| 1 | 664 042 | Test tubes, Fiolax, 16 x 160 mm, set of 100 |
| 1 | 667 052 | Test tube rack, for 12 tubes, 18 mm diam., 6 drying pegs |
| 1 | 656 016 | Bunsen burner, universal |
| 1 | 666 729 | Safety gas hose, 1 m |
| 1 | 667 605 | Safety screen |
