Thermal analysis of hydrocarbons

VC2.1.2.1

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Description

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 of equipment sets

1	666428 4	Panel frame C100, two-level, for CPS
1	666460	Combustion chamber with filament, CPS
2	6664660 4	Adhesive magnetic board CPS, 300 mm
4	6664664 8	Holder, magnetic, size 4, 27...29 mm
2	665914 4	Gas syringe, 100 ml with 3-way stopcock
1	666468 8	Blank panel, 300 mm, CPS
1	666467 8	Blank panel, 200 mm, CPS
1	72621 8	Equipment platform, 350 mm
1	500421 4	Connecting lead 19 A, 50 cm, red
1	500422 4	Connecting lead 19 A, 50 cm, blue
1	521551 8	AC/DC power supply 0...24 V/0...10 A
1	660987 4	Minican pressurised gas canister, methane Danger H220 H280
1	660988 4	Minican pressurised gas canister, ethane Danger H220 H280
1	660980 4	Fine regulating valve for minican gas canisters
1	667194 8	Silicone tubing 7 mm Ø, 1 m
1	604510 4	Tubing connector, 4...15 mm
1	667197 4	Silicone tubing, 4 mm diam., 1 m
1	664042 8	Test tubes, Fiolax, 16 x 160 mm, set of 100
1	667052 4	Test tube rack, for 12 tubes, 18 mm diam., 6 drying pegs
1	656016 8	Bunsen burner, universal
1	666729 4	Safety gas hose, 1 m
1	6676051	Safety screen

Experiment Instructions

YouTube-Video	The new chemistry presentation system CPSflex
PDF (Experiment description)	C2.1.2.1 Thermal analysis of hydrocarbons

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Thermal analysis of hydrocarbons

Description

Components of equipment sets

Experiment Instructions

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