<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31319934</termId><termName>sodium bisulfite</termName><termType>PT</termType><termNote><![CDATA[ Water soluble white crystals or powder used as a disinfectant and bleach. Sodium bisulfite produces sulfur dioxide when heated.  ]]></termNote><termCreatedDate>2026-03-30 20:26:13</termCreatedDate><relation><relationType>UF</relationType><termId>31319935</termId><termName>bisulfite, sodium</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31319936</termId><termName>sodium bisulphite</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31343447</termId><termName>sodium compounds</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31305866</termId><termName>bleach</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31373697</termId><termName>sulfur dioxide</termName><termType>PT</termType></relation></term>  </Zthes>