<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31344866</termId><termName>barium</termName><termType>PT</termType><termNote><![CDATA[ A whitish, malleable, metallic element from the alkaline earth group, occurring primarily as a sulfate (barite) and less often as a carbonate (witherite). Salts of barium are used as pigments in paints, ceramics, glass, plastics, and rubber, as fillers, as pesticides, and to produce the green color in fireworks. ]]></termNote><termCreatedDate>2026-03-30 20:33:01</termCreatedDate><relation><relationType>BT</relationType><termId>31320545</termId><termName>barium and barium compounds</termName><termType>PT</termType></relation></term>  </Zthes>