<?xml version="1.0" encoding="utf-8"?><Thesaurus
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	xsi:schemaLocation="http://schemas.bs8723.org/XmlSchema/DD8723-5.xsd">	 <dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en</dc:identifier>  <dc:title>Tesaurus d&apos;Art i Arquitectura</dc:title>  <dc:creator>Getty Institute</dc:creator>  <dc:subject></dc:subject>  <dc:description><![CDATA[  ]]></dc:description>  <dc:publisher>Getty Institute</dc:publisher>  <dc:date>0000-00-00</dc:date>  <dc:language>en</dc:language><ThesaurusConcept dc:identifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31320409">	<dcterms:created>2026-03-30 20:26:21</dcterms:created><PreferredTerm dc:identifier="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31320409" xml:lang="en">	<LexicalValue>alkali</LexicalValue>	<dcterms:created>2026-03-30 20:26:21</dcterms:created></PreferredTerm><ScopeNote xml:lang="en">  <LexicalValue><![CDATA[ Compounds having highly basic properties, specifically any of the soluble hydroxides of the alkali metals; a general term now used for any basic material (pH greater than 7). In general, alkali compounds will react with fatty acids to form soaps; turn litmus paper blue; dissolve in water to form alkaline solutions; taste bitter and are irritating to the skin. Alkaline solutions are used in deacidifying and buffering paper. Alkalis also act as fluxes in ceramics and glass production.  ]]></LexicalValue></ScopeNote><HasHierRelConcept Role="BT">http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31306099</HasHierRelConcept><HasRelatedConcept Role="RT">http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31306060</HasRelatedConcept><HasRelatedConcept Role="RT">http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31301249</HasRelatedConcept></ThesaurusConcept></Thesaurus>