<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31343553</termId><termName>sulfur</termName><termType>PT</termType><termNote><![CDATA[ Orthorhombic mineral of the native element sulfur, having symbol S and atomic number 16.  It is found abundantly in volcanic regions, occurring as a brittle crystalline solid, widely distributed in combination with metals and other substances. It has been used as molten to create small objects and as a gap-filler, for bleaching wood pulp, straw, wool, silk, felt, and linen, for vulcanizing rubber, for making gunpowder, and in the manufacture of sulfa drugs, insecticides, plastic, enamels, and dyes. ]]></termNote><termCreatedDate>2026-03-30 20:32:39</termCreatedDate><relation><relationType>UF</relationType><termId>31343554</termId><termName>S</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31343555</termId><termName>brimstone</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31320469</termId><termName>mineral</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31319740</termId><termName>elements</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31320549</termId><termName>sulphur and sulphur compounds</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31373704</termId><termName>sulfate</termName><termType>PT</termType></relation></term>  </Zthes>