<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">oxygen absorber</topic></authority><related type="other"><topic>iron oxide</topic></related><related type="broader"><topic>biocide</topic></related><variant type="other"><topic>absorber, oxygen</topic></variant><variant type="other"><topic>oxygen absorbers</topic></variant><variant type="other"><topic>oxygen scavengers</topic></variant> <note xml:lang="en"><![CDATA[ Refers to any of several commercially prepared oxygen absorbing powders to be deployed in a sealed environment for insect eradication and oxygen-free storage in museums and archives; they are also used to extend the shelf-life of commercial food items. All contain a chemical compound the active ingredient of which is a finely divided iron oxide.  ]]></note></mads>