<?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">hydrazine</topic></authority><related type="broader"><topic>compounds</topic></related> <note xml:lang="en"><![CDATA[ Hydrazine is a hydronitrogen compound and a powerful reducing agent. It is a colorless liquid synthesized for use in pesticides and as a corrosion inhibitor in boilers. It is also a component in rocket fuels. In conservation, hydrazine has been used to reduce manganese content in medieval stained glass and thus to lighten browning.  ]]></note></mads>