Anthraquinones as marking agents for mineral oils

Details Anthraquinones as marking agents for mineral oils Anthraquinones as marking agents for mineral oils

C - Chemistry, Metallurgy

10

L

C10L 1/14 (2006.01) C09B 1/51 (2006.01) C09B 67/22 (2006.01) C09B 67/44 (2006.01) C10L 1/00 (2006.01) C10M 171/00 (2006.01)

Patent

CA 2156156

Image where R3 is unsubstituted or substituted C1-C18-alkyl or unsubstituted or substituted phenyl, for marking mineral oils, mineral oils marked with these anthraquinones, dye mixtures containing an oil-soluble dye and one of the abovementioned anthraquinones, and a method of detecting anthraquinones in mineral oils.

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