<?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">sodium sesquicarbonate</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31373660</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:40:46</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">sesquicarbonate, sodium</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ A double salt of sodium bicarbonate and sodium carbonate, forming in white crystalline needles. It is used in the treatment of water for softening or cleaning applications. In conservation, used in solution to stabilize corrosion by removing chlorides and other salts from iron and bronze. ]]></dc:description></metadata>