<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31320287</termId><termName>hydrochloric acid</termName><termType>PT</termType><termNote><![CDATA[ A colorless or faintly yellow corrosive, fuming liquid, Hcl, used in chemical and industrial procesess. ]]></termNote><termCreatedDate>2026-03-30 20:26:19</termCreatedDate><relation><relationType>UF</relationType><termId>31320288</termId><termName>acid, hydrochloric</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31320289</termId><termName>acid, muriatic</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31320290</termId><termName>muriatic acid</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31320291</termId><termName>salt, spirit of</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31320292</termId><termName>spirit of salt</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31306060</termId><termName>acid</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31344303</termId><termName>aqua regia</termName><termType>PT</termType></relation></term>  </Zthes>