Poly Aluminium Chloride PACEnglish Name: Poly Aluminium Chloride(Poly Aluminium Chloride), Short For PAC Flocculant /Coagulant Synonyms: PAC; Aluminum Chlorohydrate; Aluminum Chlorhydroxide; Aluminum Chloride, Basic; Aluminum Hydroxychloride; Poly Aluminum Chloride; Polyaluminum Chloride CAS No.: 1327-41-9 Technical Data Sheet Items Roller.