<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31437568</termId><termName>verdigris</termName><termType>PT</termType><termNote><![CDATA[ Pigment composed of basic copper acetate and having a dark bluish-green color. Verdigris has been manufactured since ancient times by placing copper plates over vats of fermenting grape skins; the acetic acid quickly reacts to form basic copper acetate. When used directly as a pigment, it discolors from green to black in oil paints, fades in watercolor paints, and reacts with a paper support. It is used to make copper resinate, as a drier for linseed oil, to dye fabrics, and as a colorant and fungicide in antifouling paints. ]]></termNote><termCreatedDate>2026-03-30 20:57:58</termCreatedDate><relation><relationType>UF</relationType><termId>31437569</termId><termName>Montpellier green</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31437570</termId><termName>Van Eyck green</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31437571</termId><termName>copper basic acetate</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31411050</termId><termName>synthetic inorganic green pigment</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31301805</termId><termName>verdigris</termName><termType>PT</termType></relation></term>  </Zthes>