<?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">chromium dioxide</topic></authority><related type="broader"><topic>inorganic material</topic></related><variant type="other"><topic>CrO2</topic></variant><variant type="other"><topic>dioxide, chromium</topic></variant> <note xml:lang="en"><![CDATA[ Brownish-black crystals or powder, insoluble in water, synthesized by the oxidation of amorphous Cr(OH)3 with oxygen. Developed as rod-like particles for thin film deposition as magnetic recording material, and as a catalyst. Chromium dioxide is no longer widely used because of high production costs and toxicity. ]]></note></mads>