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232106

Sigma-Aldrich

Phosphorus pentasulfide

99%

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Synonym(s):
Phosphorus(V) sulfide
Empirical Formula (Hill Notation):
P2S5
CAS Number:
Molecular Weight:
222.27
EC Number:
MDL number:
PubChem Substance ID:
NACRES:
NA.21

Quality Level

assay

99%

form

powder

bp

514 °C

mp

280-284 °C (lit.)

density

2.09 g/mL at 25 °C (lit.)

SMILES string

S=P(=S)SP(=S)=S

InChI

1S/P2S5/c3-1(4)7-2(5)6

InChI key

HWVAJUNEPOKXLF-UHFFFAOYSA-N

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1 of 4

This Item
29822079609214701
Phosphorus pentasulfide 99%

232106

Phosphorus pentasulfide

Phosphorus pentoxide powder, ACS reagent, ≥98.0%

298220

Phosphorus pentoxide

Phosphorus pentoxide puriss. p.a., ACS reagent, ≥98.0% (T)

79609

Phosphorus pentoxide

Phosphorus pentoxide ReagentPlus®, 99%

214701

Phosphorus pentoxide

assay

99%

assay

≥98.0%

assay

≥98.0% (T)

assay

99%

form

powder

form

powder

form

powder or crystals

form

powder

density

2.09 g/mL at 25 °C (lit.)

density

2.3 g/mL at 25 °C (lit.)

density

2.3 g/mL at 25 °C (lit.)

density

2.3 g/mL at 25 °C (lit.)

bp

514 °C

bp

-

bp

-

bp

-

mp

280-284 °C (lit.)

mp

340 °C (lit.)

mp

340 °C (lit.)

mp

340 °C (lit.)

General description

Phosphorus pentasulfide is also referred to as phosphorus(V) sulfide. It is widely employed as a thiating, deoxygenating and dehydrating agent in various organic reactions. It readily transforms esters to dithioesters.

Application

Phosphorus pentasulfide may be employed in the preparation of the following:
  • Bandgap polymer poly(isothianaphthene).
  • 3,5-diiodo-2-thiopyridone and 3,5-diiodo-4-thiopyridone.
  • Phosphorus pentasulfide can also be used:,In the conversion of carbonyls to thiocarbonyls.
  • To activate alcohols and carboxylic acid.
  • To convert furan to thiophene.

signalword

Danger

Hazard Classifications

Acute Tox. 4 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Flam. Sol. 1 - Water-react 1

supp_hazards

Storage Class

4.3 - Hazardous materials, which set free flammable gases upon contact with water

wgk_germany

WGK 3

flash_point_f

Not applicable

flash_point_c

Not applicable


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Thiation with phosphorus pentasulfide in pyridine solution.
Klingsberg E and Papa D.
Journal of the American Chemical Society, 73(10), 4988-4989 (1951)
Phosphorus (V) sulfide.
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The insecticide chlordecone has been used in the French West Indies for decades, resulting in long term pollution, human health problems and social crisis. In addition to bacterial consortia and Citrobacter sp.86 previously described to transform chlordecone into three families

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