<?xml version="1.0" encoding="utf-8"?><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/"><dc:title xml:lang="en">chlorine</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31320507</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:26:23</dcterms:created><dcterms:isPartOf xsi:type="dcterms:URI">http://AATesaurus.cultura.gencat.cat/aat/getty_en</dcterms:isPartOf><dcterms:isPartOf xml:lang="en">Tesaurus d&apos;Art i Arquitectura</dcterms:isPartOf><dc:format>text/html</dc:format> <dcterms:alternative xml:lang="en">Cl</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ An element, symbol Cl and atomic number 17, that is at ordinary temperatures a greenish-yellow gas, toxic and corrosive to the eyes and respiratory system. It becomes a liquid at -29 degrees Fahrenheit. It occurs in nature in great abundance in compounds, such as common salt.  Free chlorine is used as a sterilizing agent, such as for water. ]]></dc:description></metadata>