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262099

Sigma-Aldrich

Phosphorus(V) oxychloride

99.999%

Synonym(s):

Phosphorus(V) oxide chloride, Phosphoryl chloride

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About This Item

Linear Formula:
POCl3
CAS Number:
Molecular Weight:
153.33
EC Number:
MDL number:
UNSPSC Code:
12352101
PubChem Substance ID:
NACRES:
NA.22

vapor density

5.3 (vs air)

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.
  • A reagent in the cyclization of substituted aryl amides by Bischler−Napieralski cyclization reaction.
  • A precursor for phosphorus diffusion in the p-type silicon solar cells processing.

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

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

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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