Colored petroleum markers

C - Chemistry – Metallurgy – 09 – B

Patent

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150/26, 260/236.

C09B 1/515 (2006.01) C10L 1/00 (2006.01) C10L 1/223 (2006.01) G01N 33/22 (2006.01)

Patent

CA 1229595

COLORED PETROLEUM MARKERS ABSTRACT OF THE DISCLOSURE Tagging compounds (which function as both dyes and markers) having the following structures: Image or Image Image wherein x is an integer between 0 and 3 inclusive, y is an integer between 1 and 3 inclusive, z is 0 or 1, and R is a straight or branched chain hydrocarbon are disclosed. These compounds can be dissolved in a diluent at a concentration of from about 10 percent to about 30 percent, forming a concentrate which can be further dispersed in an organic liquid to form a final concentration of from about 1 ppm to about 15 ppm of said tagging compound in said liquid. Methods for detecting the presence of a tagged compound in an organic liquid are also disclosed.

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