Oxygen scavenger/indicator

Details Oxygen scavenger/indicator Oxygen scavenger/indicator

G - Physics

01

N

G01N 31/22 (2006.01) B65D 79/00 (2006.01) B65D 79/02 (2006.01)

Patent

CA 2629262

The invention relates to an oxygen scavenger/indicator which contains at least one oxygen sorbent material from metal or from a metal compound which can be converted to a higher degree of oxidation by oxygen. The scavenger/indicator also contains a complexing agent or redox indicator for the sorbent material and an electrolyte. The indicator effect is caused by a change in physical properties of the oxygen sorbent material which is initiated by complex formation and/or interaction with the redox indicator.

L'invention concerne un capteur/indicateur d'oxygène contenant au moins un sorbant d'oxygène composé d'un métal ou d'un alliage de métal, pouvant être amené à une étape d'oxydation supérieure par l'intermédiaire d'oxygène. Le sorbant contient également un agent complexant ou un indicateur redox destiné au sorbant, ainsi qu'un électrolyte. L'effet indicateur est obtenu par modification des propriétés physiques du sorbant d'oxygène, déclenchée par complexation et/ou interaction avec l'indicateur redox.

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