Coal and its processing products

MACHINE TRANSLATION (not authorised yet)

Teaching aid in the form of a cassette with a diagram of the various processes for processing hard coal and 10 samples of final products placed on it, i.e: - Coal - Synthetic rubber - Mineral fertilizer - Ammonia water - Medicine - Phenols - Synthetic fibres - Tar - Plastic - Coke.
A useful teaching aid for use, among others, in chemistry and geography lessons - helps to explain and illustrate the use of coal and the processes to which hard coal is subjected, in addition to the combustion process most associated with it.