Chemistry: analytical and immunological testing – Nitrogen containing
Patent
1992-07-24
1994-06-21
Alexander, Lyle A.
Chemistry: analytical and immunological testing
Nitrogen containing
436 3, 436111, 436113, G01N 3300
Patent
active
053227972
ABSTRACT:
A paint or coating composition and method for detecting vapor or liquid reactants, such as ammonia. The composition is composed of ethyl cellulose as a binder, a filler, such as amorphous silica, and a dye, such as bromophenol blue. The composition serves as a passive detector for vapor or liquid reactants when applied to selected surfaces as a paint. The composition is capable of detecting extremely low concentrations of vapor. Further, the composition is capable of regenerating to its original color, thereby providing repeated detection capability.
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Dziuk, Jr. Jerome J.
Mallow William A.
Alexander Lyle A.
Smith Richard J.
Southwest Research Institute
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