... powder 3, ISO9001 4, Water Treatment. 1. Product DescriptionSynonyms: PAC; Aluminum chlorohydrate; Aluminum chlorhydroxide; Aluminum chloride basic; Aluminum hydroxychloride; ... 0.0005% max4. Products Types 1. PAC S - white powder -spray dry 2. PAC H - bright yellow powder-spray dry 3 ... . PAC V - light yellow powder -spary dry5. ...