<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31373654</termId><termName>sodium bicarbonate</termName><termType>PT</termType><termNote><![CDATA[ White, water soluble crystalline or granular powder, commonly known as baking soda or bicarbonate of soda. It is used as a leavening agent for baking; in medicine as an antacid; as a whitening agent in toothpastes; a fire retardant; a stain-absorbing ingredient in dry cleaning preparations. Chemical formula: NaHC03. ]]></termNote><termCreatedDate>2026-03-30 20:40:46</termCreatedDate><relation><relationType>UF</relationType><termId>31373655</termId><termName>baking soda</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373656</termId><termName>bicarbonate of soda</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373657</termId><termName>bicarbonate, sodium</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373658</termId><termName>nahcolite</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373659</termId><termName>sodium hydrogen carbonate</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31343447</termId><termName>sodium compounds</termName><termType>PT</termType></relation></term>  </Zthes>