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262099

Sigma-Aldrich

Phosphorus(V) oxychloride

99.999%

Synonym(s):
Phosphorus(V) oxide chloride, Phosphoryl chloride
Linear Formula:
POCl3
CAS Number:
Molecular Weight:
153.33
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.22

vapor density

5.3 (vs air)

Quality Level

vapor pressure

104 mmHg ( 50 °C)
28 mmHg ( 20 °C)

assay

99.999%

form

liquid

pH

1 (20 °C)

bp

105.8 °C (lit.)

mp

1.25 °C (lit.)

density

1.645 g/mL at 25 °C (lit.)

SMILES string

ClP(Cl)(Cl)=O

InChI

1S/Cl3OP/c1-5(2,3)4

InChI key

XHXFXVLFKHQFAL-UHFFFAOYSA-N

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Application

Phosphorus(V) oxychloride can be used as:
  • A dehydrating agent in organic synthesis.[1]
  • A reagent in the cyclization of substituted aryl amides by Bischler−Napieralski cyclization reaction.[2]
  • A precursor for phosphorus diffusion in the p-type silicon solar cells processing.[3]

It can also be used in the Vilsmeier-Haack reaction to synthesize aromatic aldehydes.[4]

Packaging

10, 50, 100 g in ampule

Signal Word

Danger

Hazard Statements

Hazard Classifications

Acute Tox. 2 Inhalation - Acute Tox. 4 Oral - Eye Dam. 1 - Skin Corr. 1A - STOT RE 1 Inhalation

Target Organs

Respiratory Tract

Supplementary Hazards

Storage Class Code

6.1B - Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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