Description

Dipropyl Phosphite is an organophosphorus compound widely used as a versatile intermediate in chemical synthesis. Its primary commercial value lies in its role as a key building block for the production of specialized antioxidants, stabilizers, and flame retardants. This product is essential for manufacturers in the polymer, agrochemical, and lubricant additive industries seeking to enhance material performance and longevity.

Application

• Polymer Additive Precursor: A crucial intermediate for synthesizing high-performance antioxidants and phosphite-based stabilizers for plastics and synthetic rubbers.
• Agrochemical Synthesis: Used in the manufacture of organophosphorus pesticides and plant growth regulators.
• Lubricant & Fuel Additive Component: Serves as a starting material for anti-wear and extreme pressure additives in industrial lubricants and hydraulic fluids.
• Chemical Intermediate: Employed in organic synthesis for the preparation of other phosphonates and phosphinates with specialized functions.
• Flame Retardant Synergist: Acts as a reactive intermediate in the production of flame-retardant compounds for textiles and engineering plastics.
• Metal Extraction & Chelation: Utilized in processes for metal ion separation and as a ligand in certain catalytic systems.

Basic Information

Product Name	Dipropyl Phosphite
CAS No.	1809-21-8
Molecular Formula	C6H15O3P
Molecular Weight	166.16 g/mol
Synonyms	Dipropyl Phosphite; Di-n-propyl Phosphite; Phosphonic Acid, Dipropyl Ester; Propyl Phosphite (Dipropyl Ester); Hydrogen Dipropyl Phosphite; DPP; NSC 8856
EINECS	217-324-8

Quality Control

Our Dipropyl Phosphite is manufactured under stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including assay, identity confirmation, and impurity profiling, to ensure it meets the high standards required for industrial synthesis. A detailed Certificate of Analysis (COA) is provided with each shipment to guarantee traceability and consistency.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area under an inert atmosphere (e.g., nitrogen or argon) to prevent oxidation. Recommended storage temperature is between 15°C and 25°C. Keep away from heat, sparks, open flames, and strong oxidizing agents.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 97.0%
Water Content (KF)	≤ 0.5%
Acidity (as H3PO4)	≤ 1.0%

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