<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31343386</termId><termName>chloramine</termName><termType>PT</termType><termNote><![CDATA[ A class of compounds containing nitrogen and chlorine. Two types of chloramine have been used in the past as a bleach for paper. Chloramine-B, introduced in 1937, was eventually replaced by the more easily controllable chloramine-T which itself proved problematic: it reacts with aluminum and other metals precipitating residues that are hard to remove. Chloramine-T is now used as a disinfectant, antiseptic, and biocide. In conservation it is used for removing fungal stains from stone and in bleaching treatments of aged paper. ]]></termNote><termCreatedDate>2026-03-30 20:32:37</termCreatedDate><relation><relationType>UF</relationType><termId>31343387</termId><termName>chloramines</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31319736</termId><termName>compounds</termName><termType>PT</termType></relation></term>  </Zthes>