A propane tank perched on concrete blocks looked out of place in the antiquated setting.
Cyclo-propane Group. Trimethylene, Calls, obtained by A.
The identity of the four valencies of the carbon atom follows from the fact that the heats of combustion of methane, ethane, propane, trimethyl methane, and tetramethyl methane, have a constant difference in the order given, viz.
In the difference between C - C - C - C C-C-C and With this compound C 4 H 10, named butane, C isomerism is actually observed, being limited to a pair, whereas the former members ethane, C 2 H 6, and propane, C 3 H 8, showed no isomerism.
POLYMETHYLENES, in chemistry, cyclic compounds, the simplest members of which are saturated hydrocarbons of general formula C 7, H 2nj where n may be r to 9, and known as tri-, tetra-, penta-, hexa-, and hepta-methylene, &c., or cyclo- propane, -butane, -pentane, -hexane, -heptane, &c.: - CH 21 CH 2 CH 2 CH2.CH2 CH2 CH2 CH2?C1H,, I I H ?