<?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">triammonium citrate</topic></authority><related type="broader"><topic>salt</topic></related><variant type="other"><topic>TAC</topic></variant><variant type="other"><topic>citrate, triammonium</topic></variant> <note xml:lang="en"><![CDATA[ A chemical compound; in conservation, a chelating agent of ammonium salt of citric acid used in solution for surface cleaning of paper, paintings, and other materials. May also be used as a buffering agent, preservative, and food additive.  ]]></note></mads>