Alias: Phosphorous Pentachloride; Phosphorus(V) chloride; PhosphorusVchloridewhitextl; PETACHLOROPHOSPHORANE; PHOSPHORUS CHLORIDE CAS RN: 10026-13-8 EINECS No.: 233-060-3 Molecular formula: Cl5P Molecular weight: 208.2388 Physical properties: density 1.6; melting point: 179-181°C (subl.); water solubility: decomposes