Phosphorus trichloride PCl3

Min.Order / FOB Price:Get Latest Price

1 Liter	FOB Price:USD 1.0000 -2.0000

1 Liter

FOB Price:USD 1.0000 -2.0000

Min.Order :1 Liter
Purity: 99.9999%
Payment Terms : T/T,,MoneyGram,Other

Keywords

Phosphorus III chloride Phosphorous chloride Phosphorous PCl3

Quick Details

Appearance:colourless liquid
Application:PCl3 is important indirectly as a precursor to PCl5, POCl3 and PSCl3. which in turn enjoy many applications in herbicides, insecticides, plasticisers, oil additives, and flame retardants. For examp
PackAge:Buyer's request
ProductionCapacity:10000|Liter|Week
Storage:as per buyer's request
Transportation:air, sea

Superiority:

Properties
Systematic name	Phosphorus trichloride
Other names	Phosphorus(III) chloride Phosphorous chloride
Molecular formula	PCl₃
Molar mass	137.33 g/mol
Appearance	colourless liquid
CAS number	[7719-12-2]
EINECS number	231-749-3
MSDS	External MSDS
Density	1.574 g/cm³
Solubility	Water: hydrolysis Methanol: decomposes Benzene: soluble Chloroform: soluble Diethyl ether: soluble
Melting point	-93.6 °C (179.6 K)
Boiling point	76.1 °C (349.3 K)
Standard enthalpy of formation Δ_fH⁰_liq	−319.7 kJ/ mol (liquid)
Structure
Molecular geometry	Trigonal pyramidal
Bond angle	100 °
Bond length	P-Cl 204 pm (2.04 Å)
Dipole moment	0.56 D
Hazards
MSDS	External MSDS
Main hazards	Corrosive, toxic releases HCl
NFPA 704
Flash point	°C
R/S statement	R: 14-26/28-29-35-48/20 S: 26-36/37/39-45-7/8
RTECS number	TH3675000

The phosphorus in PCl₃ is often considered to have the +3 oxidation state and the chlorine atoms are considered to be in the -1 oxidation state. Most of its reactivity is consistent with this description.

Details:

PCl₃ is important indirectly as a precursor to PCl₅, POCl₃ and PSCl₃. which in turn enjoy many applications in herbicides, insecticides, plasticisers, oil additives, and flame retardants.

For example oxidation of PCl₃ gives POCl₃, which is used for the manufacture of triphenyl phosphate and tricresyl phosphate, which find application as flame retardants and plasticisers for PVC. They are also used to make insecticides such as diazinon. Phosphonates include the herbicide glyphosate,

PCl₃ is the precursor to triphenylphosphine for the Wittig reaction, and phosphite esters which may be used as industrial intermediates, or used in the Horner-Wadsworth-Emmons reaction, both important methods for making alkenes. It can be used to make trioctylphosphine oxide (TOPO), used as an extraction agent, although TOPO is usually made via the corresponding phosphine.

PCl₃ is also used directly as a reagent in organic synthesis. It is used to convert primary and secondary alcohols into alkyl chlorides, or carboxylic acids into acyl chlorides, although thionyl chloride generally gives better yields than PCl₃.

View All