Steam CAS Registry Number 7732-18-5 Pipeline grid availability Baltic Chemical Park ChemCoast Park Brunsbüttel Chemelot Chemical Cluster Delfzijl Chempark Leverkusen Currenta EMMTEC Industry & Business Park Hellisheiði ON-Power Industriepark Höchst Kokkola Industrial Park Port Of Antwerp Port of Rouen Saltend Chemicals Parks Stade Valuepark Terneuzen