Not Finding Your Answer?
Post It On KidzTalk Homework Help
Post It On KidzTalk Homework Help
Report a search problem
mobile version
Copyright 2005-2024 KidzSearch.com
Tar is a sticky black liquid made of thick oil. It is a natural substance, oozing out of the ground in places like the La Brea tar pits. Usually it is made by heating coal inside a chemical apparatus.
Most tar is produced from coal as a byproduct of coke production, but it can also be produced from petroleum, peat or wood. The "destructive distillation" of a ton of coal can produce 700 kg of coke, 100 litres of liquor ammonia, 50 litres of coal tar and 400 m3 of coal gas.