... . CAS NO.: 1309-37-1 2. Usage: Construction, Coating and Paint, Ink, Rubber, Plastic etc. Iron Oxide Red CAS NO.: 1309-37 ... water 0.19% PH 7Usage: Construction, Coating and Paint, Ink, Rubber, Plastic, etc.Packing: 25/50kg plastic bag with PE inside and PP ... woven outside; 24MT/ 20'FCLH.S. Code: 2821000000 Iron Oxide Red used in construction