id	author	title	date	pages	extension	mime	words	sentences	flesch	summary	cache	txt
33165	Meldola, Raphael	Coal, and What We Get from It			.txt	text/plain	45200	2300	63	production of colouring-matters from coal-tar, that any attempt to strip the first of the coal-tar colouring-matters was sent forth into commerce. large scale, when, a few years later, the first coal-tar colouring-matter violet colouring matter--the first dye from coal-tar--which was chemists obtained the red colouring-matter as a by-product; it was formed aniline on an increased scale sprung up, and the light oils of coal-tar the coal-tar colour industry--pure chemistry and chemical technology both which figures largely in the coal-tar colour industry. product, a violet colouring-matter was formed, and the same compound was a natural vegetable product from a coal-tar hydrocarbon. colouring-matters derived from coal-tar, none is more widely known than an extent that other colouring-matters, also derived from coal-tar, are The manufacture of one coal-tar colouring-matter has thus coal-tar products do not end with the formation of colouring-matters, if we put down the value of the coal-tar colouring-matters produced	./cache/33165.txt	./txt/33165.txt