Ferric Chloride Hexahydrate (Solid) Chemical formula: FeCl3· 6H2O CAS No.: 10025-77-1 Purity: 96% Min. Appearance: Yellow solid Packing: 40kg carton Product Origin: Taiwan Ferric Chloride Solution Chemical formula: FeCl3 CAS No.: 7705-08-0 Purity: 40% Min. / 42% Min. Appearance: Brown liquid Packing: 1400 kg IBC drum Product Origin: Taiwan Application: Ferric Chloride is mainly used in water treatment and the manufacturing of printed circuit boards (PCB) for etching process.