<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31373681</termId><termName>sodium metabisulfite</termName><termType>PT</termType><termNote><![CDATA[ An inorganic compound used in the form of a white crystalline powder used variously as an antioxidant, a disinfectant, and a preservative in foods. In a conservation context, it has been used for removing rust stains from paper. ]]></termNote><termCreatedDate>2026-03-30 20:40:46</termCreatedDate><relation><relationType>UF</relationType><termId>31373682</termId><termName>disodium pyrosulfite</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373683</termId><termName>metabisulfite, sodium</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373684</termId><termName>sodium metabisulphite</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373685</termId><termName>sodium pyrosulfite</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373686</termId><termName>sodium pyrosulphite</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31343447</termId><termName>sodium compounds</termName><termType>PT</termType></relation></term>  </Zthes>