Flame Retardant TCPP TCPP, the chemical name tris(2-chloroisopropyl) phosphate ,is a low cost chlorine and phosphorous based fl tris( ... Retardant) Flame Retardant TCPPTCPP, the chemical name tris(2-chloroisopropyl) phosphate ,is a low cost chlorine and phosphorous based flame retardant ... ventilation. Wash thoroughly with soap after handling. tris(2-chloroisopropyl) phosphate