<?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">stannous oxide</topic></authority><related type="broader"><topic>oxides</topic></related><variant type="other"><topic>SnO</topic></variant><variant type="other"><topic>oxide, stannous</topic></variant> <note xml:lang="en"><![CDATA[ Oxide appearing as an olive-brown or blue-black anhydrous powder when stannous oxalate is heated out of contact with the air. Uses include manufacturing of other tin compounds, as a reducing agent, and as an ingredient in creating ruby glass. ]]></note></mads>