<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31344833</termId><termName>triammonium citrate</termName><termType>PT</termType><termNote><![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.  ]]></termNote><termCreatedDate>2026-03-30 20:33:00</termCreatedDate><relation><relationType>UF</relationType><termId>31344834</termId><termName>TAC</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31344835</termId><termName>citrate, triammonium</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31320494</termId><termName>salt</termName><termType>PT</termType></relation></term>  </Zthes>