Skip to Content
Merck
All Photos(2)

Key Documents

Safety Information

241555

Sigma-Aldrich

Phosphorus triiodide

99%

Synonym(s):

Phosphorus(III) iodide

Sign Into View Organizational & Contract Pricing


About This Item

Linear Formula:
PI3
CAS Number:
Molecular Weight:
411.69
EC Number:
MDL number:
UNSPSC Code:
12352302
PubChem Substance ID:
NACRES:
NA.23

Quality Level

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

Looking for similar products? Visit Product Comparison Guide

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

Signal Word

Danger

Hazard Statements

Hazard Classifications

Skin Corr. 1B - STOT SE 3

Target Organs

Respiratory system

Supplementary Hazards

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

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

241555-VAR:
241555-10G:4548173993157
241555-BULK:
241555-50G:


Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

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)
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)
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)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service