Metallic pigments continuing coloration

Liquid drops dispersed in a second liqtiid medium are called emulsions and may be the most important of all colloids, including blood and milk. Sohd colloids suspended in liqtiid are called sols, or hydrosols, when waterborne. Sohd suspensions include ice cream, sedimentary rock formations, colored plastics and ceramics filled with pigment particles (as opposed to dyes), and other synthetic composites. Composites are made from two sofids to form a hybrid material with the desirable properties of each constituent for example, a plastic continuous phase for its light weight with a metal or ceramic filler for strength. 

EPA used the WMPT as a basis for a proposed voluntary waste reduction scheme. This has left the manufacturers of color pigments, which were categorized incorrectly in the beginning of this process, to continue arguing for some rational means of removing the unwarranted PBT label. The EPA proposed that industry reduce voluntarily by up to 50 % wastes containing a list of 53 constituents. These constituent chemicals included a list of metals. The listed metals included aU compounds of lead, cadmium, nickel, arsenic, antimony, copper and zind l... 

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