7719-12-2
Product Name:
Phosphorus trichloride
Formula:
Cl3P
Synonyms:
Phosphorus(III) chloride
Inquiry
CHEMICAL AND PHYSICAL PROPERTIES
| Physical Description | Phosphorus trichloride appears as a colorless or slightly yellow fuming liquid with a pungent and irritating odor resembling that of hydrochloric acid. Causes severe burns to skin, eyes and mucous membranes. Very toxic by inhalation, ingestion and skin absorption. Reacts with water to evolve hydrochloric acid, an irritating and corrosive gas apparent as white fumes. Used during electrodeposition of metal on rubber and for making pesticides, surfactants, gasoline additives, plasticizers, dyestuffs, textile finishing agents, germicides, medicinal products, and other chemicals. |
|---|---|
| Color/Form | Clear colorless, fuming liquid |
| Odor | Pungent |
| Boiling Point | 169 °F at 760 mmHg (EPA, 1998) |
| Melting Point | -170 °F (EPA, 1998) |
| Solubility | Reacts with water (NIOSH, 2023) |
| Density | 1.574 at 69.8 °F (EPA, 1998) - Denser than water; will sink |
| Vapor Density | 4.75 (EPA, 1998) - Heavier than air; will sink (Relative to Air) |
| Vapor Pressure | 100 mmHg at 69.8 °F (EPA, 1998) |
| Autoignition Temperature | Not flammable (USCG, 1999) |
| Decomposition | When heated to decomposition it emits toxic fumes of /hydrogen chloride and phosphorus oxide/. |
| Viscosity | 0.65 cP at 0 °C; 0.438 cP at 50 °C |
| Corrosivity | Corrodes most common construction materials. |
| Heat of Vaporization | 30.5 kJ/mol |
| Surface Tension | 27.98 mN/m at 25 °C; 24.81 mN/m at 50 °C |
| Ionization Potential | 9.91 eV |
| Odor Threshold | Phosphorus trichloride ... can be detected at about 0.5 mg/cu m. |
| Refractive Index | Index of refraction: 1.5122 at 21 °C |
| Other Experimental Properties | Decomposes rapidly in moist air |
| 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 |
H314:Skin corrosion/irritation 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 | 137.33 g/mol |
|---|---|
| XLogP3 | 2.3 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 135.880320 g/mol |
| Monoisotopic Mass | 135.880320 g/mol |
| Topological Polar Surface Area | 0 Ų |
| Heavy Atom Count | 4 |
| Formal Charge | 0 |
| Complexity | 8 |
| 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 trichloride appears as a colorless or slightly yellow fuming liquid with a pungent and irritating odor resembling that of hydrochloric acid. Causes severe burns to skin, eyes and mucous membranes. Very toxic by inhalation, ingestion and skin absorption. Reacts with water to evolve hydrochloric acid, an irritating and corrosive gas apparent as white fumes. Used during electrodeposition of metal on rubber and for making pesticides, surfactants, gasoline additives, plasticizers, dyestuffs, textile finishing agents, germicides, medicinal products, and other chemicals.