<?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">propylene oxide</topic></authority><related type="broader"><topic>compounds</topic></related><variant type="other"><topic>oxide, propylene</topic></variant> <note xml:lang="en"><![CDATA[ Colorless, extremely volatile liquid once primarily used as racing fuel but now banned for safety reasons. Propylene oxide is chiefly used in production of polyurethane plastics. It is also employed as a fumigant for use in agriculture and cultural heritage protection. ]]></note></mads>