Hydrogen peroxide and peracetic acid indicators and methods...

Details Hydrogen peroxide and peracetic acid indicators and methods... Hydrogen peroxide and peracetic acid indicators and methods...

A - Human Necessities

61

L

A61L 2/28 (2006.01) G01N 31/22 (2006.01)

Patent

CA 2472039

The present invention provides a hydrogen peroxide indicator and a peracetic acid indicator that include a substrate on which is disposed an indicator composition that includes at least one of a select group of colorants and a transition metal salt. As a result of exposure to hydrogen peroxide and/or peracetic acid, the colorants change color, and even become colorless, thereby providing an indication of the presence of hydrogen peroxide and/or peracetic acid.

La présente invention concerne un indicateur de peroxyde d'hydrogène et un indicateur de l'acide peracétique comportant un substrat sur lequel est disposée une composition indicatrice qui comprend au moins un groupe choisi de colorants et un sel d'un métal de transition. Suite à un temps d'exposition au peroxyde d'hydrogène et/ou à l'acide peracétique, les colorants changent de couleur, voire deviennent incolores, fournissant ainsi une indication de la présence de peroxyde d'hydrogène et/ou de l'acide peracétique.

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