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157775

Sigma-Aldrich

Phosphorus pentachloride

reagent grade, 95%

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Synonym(s):
Phosphorus(V) chloride
Linear Formula:
PCl5
CAS Number:
Molecular Weight:
208.24
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

grade

reagent grade

Quality Level

vapor pressure

<1 mmHg ( 20 °C)

assay

95%

form

powder

pH

1 (5 g/L)

mp

179-181 °C (subl.) (lit.)

SMILES string

ClP(Cl)(Cl)(Cl)Cl

InChI

1S/Cl5P/c1-6(2,3,4)5

InChI key

UHZYTMXLRWXGPK-UHFFFAOYSA-N

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1 of 4

This Item
8.223407959079609
vibrant-m

157775

Phosphorus pentachloride

vibrant-m

8.22340

Phosphorus pentachloride

vibrant-m

79590

Phosphorus pentachloride

vibrant-m

79609

Phosphorus pentoxide

Quality Level

200

Quality Level

200

Quality Level

100

Quality Level

200

form

powder

form

crystalline solid

form

powder or crystals

form

powder or crystals

vapor pressure

<1 mmHg ( 20 °C)

vapor pressure

0.016 hPa ( 20 °C)

vapor pressure

0.016 hPa ( 20 °C)

vapor pressure

1 mmHg ( 384 °C), 10 mmHg ( 238 °C)

pH

1 (5 g/L)

pH

1 (5 g/L in H2O, acidic)

pH

1 (5 g/L)

pH

1.5 (20 °C, 10 g/L)

mp

179-181 °C (subl.) (lit.)

mp

148 °C

mp

-

mp

340 °C (lit.)

General description

Phosphorus pentachloride is a light yellow colored phosphorous halide. It participates in the synthesis of thiazoline analogs.

Application

Phosphorus pentachloride may be used in the synthesis of following compounds:
  • benzenesulfonyl chloride
  • malonic dinitrile
  • aromatic sulfonyl chlorides

Phosphorus pentachloride may be used as halogenating reagent to convert any substituted aldehyde into the corresponding vinyl halide. It can also undergo reaction with ammonium chloride to yield linear phosphazenes and cyclophosphazenes.

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory Tract

supp_hazards

Storage Class

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

wgk_germany

WGK 1

ppe

Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges


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Customers Also Viewed

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Allcock H
Phosphorus-Nitrogen Compounds: Cyclic, Linear, and High Polymeric Systems (2012)
Ley.VS et al.
Comprehensive Organic Functional Group Transformations: Synthesis: carbon with two heteroatoms, each attached by a single bond (2005)
Ley.VS
Comprehensive Organic Functional Group Transformations II, 2 (1995)
Synthetic studies of thiazoline and thiazolidine-containing natural products-1. Phosphorus pentachloride-mediated thiazoline construction reaction.
Ino A and Murabayashi A.
Tetrahedron, 55(34), 10271-10282 (1999)
Eagleson M.
Concise Encyclopedia Chemistry, 120-120 (1994)

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