<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31373745</termId><termName>potassium chloride</termName><termType>PT</termType><termNote><![CDATA[ A white or colorless crystalline solid or powder of the composition KCl, used for molten salt baths, for the heat treatment of steels, for fertilizers, and in explosives. ]]></termNote><termCreatedDate>2026-03-30 20:40:47</termCreatedDate><relation><relationType>UF</relationType><termId>31373746</termId><termName>chloride, potassium</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373747</termId><termName>potash muriate</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373748</termId><termName>potassiummuriate</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31343456</termId><termName>potassium compounds</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31344647</termId><termName>sylvite</termName><termType>PT</termType></relation></term>  </Zthes>