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Pittacal was the first synthetic dyestuff to be produced commercially. It was accidentally discovered by German chemist Carl Ludwig Reichenbach in 1832, who was also the discoverer of kerosene, phenol, eupion, paraffin and creosote.
Additional recommended knowledge
As the history goes, Reichenbach applied creosote to the wooden posts of his home, in order to drive away dogs who urinated on them. The strategy was ineffectual, however, and he noted that the dog's urine reacted with creosote to form an intense dark blue deposit. He named the new substance píttacal (from Greek words tar and beautiful. He later was able to produce pure pittacal by treating beechwood tar with barium oxide and using alumina as a mordant to dye fabrics. Although sold commercially as a dyestuff, it did not fare well.
Kaufmann, GB - Pittacal -- the first synthetic dyestuff. J. Chem. Edu. , 753, 1977.
|This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Pittacal". A list of authors is available in Wikipedia.|