<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">hydroxypropyl cellulose</topic></authority><related type="broader"><topic>cellulose ether</topic></related><variant type="other"><topic>hydroxypropylcellulose</topic></variant><variant type="other"><topic>HPC</topic></variant><variant type="other"><topic>cellulose, hydroxypropyl</topic></variant> <note xml:lang="en"><![CDATA[ Hydroxypropyl cellulose (HPC) is a water-soluble cellulose ether used as an emulsifier, thickener, and suspending agent in many types of solutions. In conservation, HPC is used as a consolidant for leather afflicted by "red rot", and as a fixative for pigments and dyes. ]]></note></mads>