Description

Phosphorus Triiodide is a versatile inorganic reagent primarily used as a potent iodinating agent in organic synthesis. Its high reactivity makes it a critical component for introducing iodine atoms into complex molecular structures, enabling the production of valuable intermediates. This compound is essential for research and development laboratories, pharmaceutical manufacturing, and specialty chemical synthesis where precise halogenation is required.

Application

• Organic Synthesis Reagent: A powerful iodinating agent for converting alcohols to alkyl iodides and for aromatic iodination reactions.
• Pharmaceutical Intermediate Production: Used in the synthesis of iodine-containing active pharmaceutical ingredients (APIs) and diagnostic agents.
• Material Science Precursor: Serves as a source of iodine and phosphorus in the preparation of specialized inorganic materials and semiconductors.
• Laboratory Research: Employed in academic and industrial R&D for studying reaction mechanisms and developing new synthetic methodologies.
• Fine Chemical Manufacturing: Facilitates the production of iodinated compounds used in agrochemicals, dyes, and liquid crystals.

Basic Information

Product Name	Phosphorus Triiodide
CAS No.	13455-01-1
Molecular Formula	PI3
Molecular Weight	411.69 g/mol
Synonyms	Triiodophosphine; Phosphorus(III) iodide; Phosphorous triiodide; Iodophosphine
EINECS	236-647-2

Quality Control

Our Phosphorus Triiodide is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed to confirm identity, assay, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment. We adhere to cGMP principles where applicable to support our customers in regulated industries.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials. Due to its hygroscopic and strictly light-sensitive nature, the container must be kept sealed under an inert atmosphere (e.g., argon or nitrogen) and opened only in a controlled, moisture-free environment. Recommended long-term storage temperature is 2-8°C.

Specification

Item	Specification
Appearance	Dark red to violet crystalline solid or chunks
Identification (IR)	Conforms
Assay (PI3)	≥ 98.0 %
Water (Karl Fischer)	≤ 0.5 %

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.