Coal-tar is the liquid by-product of the distillation of coal to make coke. The gaseous by-product produced by this process is commonly known as town gas.
Coal-tar is very viscous and strong smelling. It is used in medicated shampoo to kill and repel head lice
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... and in 1822 the then prince-regent Dom Pedro I established the independent Empire of Brazil. This lasted until the next emperor, Dom Pedro II was deposed in 1889 and a ...