10026-13-8

Product Name: Phosphorus pentachloride

Formula: Cl5P

Synonyms: Phosphorus pentachloride;Phosphorus(V) chloride;Phosphorus(V) chloride, polymer-bound

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CHEMICAL AND PHYSICAL PROPERTIES SAFETY INFORMATION COMPUTED DESCRIPTORS PRODUCT INTRODUCTION RELATED SUPPLIERS

CHEMICAL AND PHYSICAL PROPERTIES

Physical Description	Phosphorus pentachloride is a greenish-yellow crystalline solid with an irritating odor. It is decomposed by water to form hydrochloric and phosphoric acid and heat. This heat may be sufficient to ignite surrounding combustible material. It is corrosive to metals and tissue. Long term exposure to low concentrations or short term exposure to high concentrations can result in adverse health effects from inhalation.
Color/Form	White to pale yellow crystalline mass
Odor	Pungent, unpleasant odor
Boiling Point	320 °F at 760 mmHg (EPA, 1998)
Melting Point	(decomposes) 298 °F (under pressure) sublimes at about 212 °F without melting (EPA, 1998)
Solubility	Reacts with water (NIOSH, 2023)
Density	3.6 (NIOSH, 2023) - Denser than water; will sink
Vapor Density	7.2 (Air = 1)
Vapor Pressure	1 mmHg at 131.9 °F (EPA, 1998)
Decomposition	PRODUCES PHOSPHORUS TRICHLORIDE & CHLORINE WHEN HEATED; PRODUCES PHOSPHORUS OXYCHLORIDE, PHOSPHORIC ACID, & HYDROCHLORIC ACID WHEN DECOMPOSED IN WATER
Corrosivity	Corrosive
Heat of Vaporization	64.9 kJ/mol
Other Experimental Properties	Deliquescent; reacts with alcohols to form corresponding chloride
Chemical Classes	Toxic Gases & Vapors -> Other Toxic Gases & Vapors

SAFETY INFORMATION

Signal word	Danger
Pictogram(s)	Corrosion Corrosives GHS05 Skull and Crossbones Acute Toxicity GHS06 Health Hazard GHS08
GHS Hazard Statements	H302:Acute toxicity,oral H314:Skin corrosion/irritation H330:Acute toxicity,inhalation H373:Specific target organ toxicity, repeated exposure
Precautionary Statement Codes	P260:Do not breathe dust/fume/gas/mist/vapours/spray. P280:Wear protective gloves/protective clothing/eye protection/face protection. P314:Get medical advice/attention if you feel unwell. P303+P361+P353:IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338:IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

COMPUTED DESCRIPTORS

Molecular Weight	208.2 g/mol
XLogP3	3.9
Hydrogen Bond Donor Count	0
Hydrogen Bond Acceptor Count	0
Rotatable Bond Count	0
Exact Mass	207.815075 g/mol
Monoisotopic Mass	205.818025 g/mol
Topological Polar Surface Area	0 Å²
Heavy Atom Count	6
Formal Charge	0
Complexity	37.1
Isotope Atom Count	0
Defined Atom Stereocenter Count	0
Undefined Atom Stereocenter Count	0
Defined Bond Stereocenter Count	0
Undefined Bond Stereocenter Count	0
Covalently-Bonded Unit Count	1
Compound Is Canonicalized	Yes

PRODUCT INTRODUCTION

description

Phosphorus pentachloride is a greenish-yellow crystalline solid with an irritating odor. It is decomposed by water to form hydrochloric and phosphoric acid and heat. This heat may be sufficient to ignite surrounding combustible material. It is corrosive to metals and tissue. Long term exposure to low concentrations or short term exposure to high concentrations can result in adverse health effects from inhalation.