Dye solutions for use in methods to detect the prior...

Details Dye solutions for use in methods to detect the prior... Dye solutions for use in methods to detect the prior...

2006-12-12

2006-12-12

Soderquist, Arlen (Department: 1743)

Chemistry: analytical and immunological testing

Tracers or tags

C252S193000, C252S301190, C252S301320, C252S364000, C252S964000, C252S965000, C436S001000, C436S002000, C436S003000, C436S004000, C436S005000, C436S111000, C436S112000, C436S113000, C436S166000, C436S172000

Reexamination Certificate

active

07148066

ABSTRACT:
Systems and methods providing for the introduction of a dye, particularly a xanthene dye, and more particularly a rhodamine dye, to liquid anhydrous ammonia to discourage theft of the anhydrous ammonia and provide for leak detection in storage vessels. The dye will stain objects which come into contact with the liquid anhydrous ammonia allowing for the detection of such contact. Generally, the staining will be visible to the naked eye, but may also fluoresce when exposed to a particular light source such as ultra violet (UV) light.

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