Instance of: http://www.w3.org/2004/02/skos/core#Concept
Subject Field Subject Field/6811001
Is Reference of Perchloric acid-en#Sense
Perchlorsyre-da#Sense
Perchlorsaeure-de#Sense
Perchlorato rūgštis-lt#Sense
Acido perclorico-it#Sense
Acide perchlorique-fr#Sense
Perchloorzuur-nl#Sense
Perklórsav-hu#Sense
Perklorova kislina-sl#Sense
Kwas nadchlorowy-pl#Sense