Physical Sciences and Mathematics Commons^™

An Experimental Investigation Of Coloring Matter In Flowers Of Vinca Major, Alin Haykohi Gulbenk

University of the Pacific Theses and Dissertations

Even though early man did not know the nature of coloring matter in flowers, he used the coloring matter as dye for centuries. There are a variety of reasons for the interest of chemists in natural and artificial coloring matters. One of these is the color pleasure, anothe1· is the commercial importance. The visible color facilitates the experimental work in the search for methods if separation, purification and determination of organic structures.

Search for the knowledge of coloring matter goes far back in history. Man has dyed his textiles with the help of mordants from the most ancient times up …