Silent fluorescent petroleum markers

Details Silent fluorescent petroleum markers Silent fluorescent petroleum markers

1998-02-13

1999-11-09

Johnson, Jerry D.

Fuel and related compositions

Liquid fuels

Heterocyclic carbon compound containing a hetero ring having...

106 3115, 25230116, 25230134, 549285, C10L 118, C09D 500, C09D 1100, C07D 1102

Patent

active

059805935

ABSTRACT:
Liquid petroleum products and industrial liquids are marked with highly soluble silent fluorescent markers having the formula: ##STR1## where R is selected from a linear or branched C.sub.1 -C.sub.18 alkylcarboxy radical.

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patent: 5205840 (1993-04-01), Friswell et al.
Roberts, I.M., Hydrolysis of 4-Methylumbelliferyl Butyrate: A Convenient and Sensitive Fluorescent Assay for Lipase Activity, Lipids, vol. 20, No. 4, 243-247 (1985).
IP Standard Test Method 374, Determination of Coumarin Content of Kerosine, 374.1-374.4 (1992).

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