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241555

Sigma-Aldrich

Phosphorus triiodide

99%

Synonym(s):

Phosphorus(III) iodide

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About This Item

Linear Formula:
PI3
CAS Number:
13455-01-1
Molecular Weight:
411.69
EC Number:
236-647-2
MDL number:
MFCD00011442
UNSPSC Code:
12352302
PubChem Substance ID:
24854489
NACRES:
NA.23

Assay

99%

form

solid

mp

61 °C (lit.)

density

4.18 g/mL at 25 °C (lit.)

SMILES string

IP(I)I

InChI

1S/I3P/c1-4(2)3

InChI key

PZHNNJXWQYFUTD-UHFFFAOYSA-N

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General description

Phosphorus triiodide (PI3) is a trihalide of phosphorus that can be used as a deactivator and a deoxygenating agent.

Application

PI3 is used in the synthesis of black phosphate crystal, which can be used as a semiconducting material for optoelectronic applications. It is also a source of triiodide that can be utilized as a charge carrier in electrolytes for dye sensitized solar cells.

Pictograms

CorrosionExclamation mark
GHS05,GHS07

Signal Word

Danger

Hazard Statements

H314,H335

Hazard Classifications

Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

EUH014

Storage Class Code

8A - Combustible corrosive hazardous materials

WGK

WGK 3

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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Phosphorus tri-iodide (PI 3), a powerful deoxygenating agent.
Denis JN and Krief A
Journal of the Chemical Society. Chemical Communications, (12), 544-545 (1980)
Phosphorus-doped porous graphene nanosheet as metal-free electrocatalyst for triiodide reduction reaction in dye-sensitized solar cell.
Xu X, et al.
Applied Surface Science, 405, 308-315 (2017)
Photoelectrochemistry of mesoporous NiO electrodes in iodide/triiodide electrolytes.
Zhu H, et al.
The Journal of Physical Chemistry C, 111(47), 17455-17458 (2007)
Understanding the growth of black phosphorus crystals.
Zhao M, et al.
CrystEngComm, 18(40), 7737-7744 (2016)
Reversible Chain Transfer Catalyzed Polymerizations (RTCPs) of Styrene and Methyl Methacrylate with Phosphorus Catalysts.
Goto A, et al.
Macromolecular Symposia, 261(1), 18-22 (2008)

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