Back to results
US 12,405,256 B2Granted
Chemical hydrogen peroxide indicator
AssigneeSolventum Intellectual Properties Company
InventorsWensheng Xia, G. Marco Bommarito, Naiyong Jing
Life of this patent
Estimating the term…
Abstract
The disclosed hydrogen peroxide indicator includes a substrate on which is disposed an indicator composition that includes at least one of a select group of indicator compounds and a catalyst. As a result of contact with hydrogen peroxide, the indicator composition changes color, even from colorless to having a visually observable color, thereby providing an indication of the presence of hydrogen peroxide.
Claims11
An indicator article for detecting hydrogen peroxide, comprising
- a substrate and an indicator composition deposited thereon, wherein the indicator composition comprises:
- at least one indicator compound comprising 4,4′-diamino-2,2′-stilbenedisulfonic acid (DSSA);
- and
- a catalyst comprising cerium (IV) oxide nanoparticles;
- wherein the indicator composition comprises an optical property,
- wherein a visually detectable change in the optical property of the indicator composition is associated with a presence of hydrogen peroxide.
3 more elements
Dependencies are inferred from the claim text.