<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31343290</termId><termName>magnesium hydroxide</termName><termType>PT</termType><termNote><![CDATA[ Powdery alkaline compound used in paper pulp manufacture and mass deacidification treatments. Magnesium hydroxide is found in nature as the mineral brucite. It is used medicinally as a laxative and antacid. As a suspension in water it is commonly known as milk of magnesia. ]]></termNote><termCreatedDate>2026-03-30 20:32:35</termCreatedDate><relation><relationType>UF</relationType><termId>31343291</termId><termName>hydroxide, magnesium</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343292</termId><termName>magnesia, milk of</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343293</termId><termName>milk of magnesia</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31319736</termId><termName>compounds</termName><termType>PT</termType></relation></term>  </Zthes>