Description

Ethyl Phosphite is an organophosphorus compound that serves as a versatile intermediate in chemical synthesis. Its primary commercial value lies in its role as a key precursor for the production of organophosphorus ligands, flame retardants, and agrochemicals. This product is essential for manufacturers in the pharmaceutical, polymer, and specialty chemical industries seeking to develop advanced materials and active ingredients.

Application

• Chemical Synthesis Intermediate: A crucial building block for producing phosphonate esters, phosphonates, and other organophosphorus derivatives.
• Ligand Precursor: Used in the synthesis of specialized phosphite and phosphonite ligands for homogeneous catalysis and metal complexation.
• Flame Retardant Formulations: Acts as a reactive intermediate in the manufacture of phosphorus-based flame retardants for polymers and textiles.
• Agrochemical Synthesis: Employed as a key intermediate in the production of certain herbicides, plant growth regulators, and pesticide active ingredients.
• Stabilizer and Antioxidant Precursor: Used to create additives that prevent degradation in plastics, lubricants, and fuels.
• Research & Development: Serves as a valuable reagent in academic and industrial R&D for exploring new organophosphorus chemistry.

Basic Information

Product Name	Ethyl Phosphite
CAS No.	15845-66-6
Molecular Formula	C2H7O3P
Molecular Weight	110.05 g/mol
Synonyms	Diethyl Phosphite; Phosphonic acid, diethyl ester; Diethyl phosphonate; Diethoxyphosphine oxide; DEP; O,O-Diethyl phosphonate; Diethyl hydrogen phosphite; Ethyl phosphonate
EINECS	239-984-0

Quality Control

Our Ethyl Phosphite is manufactured under strict quality management systems. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for purity and consistency. Certificates of Analysis (COA) documenting key parameters such as assay, identity, and impurity profiles are available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is easily oxidized and should be handled and stored under an inert atmosphere (e.g., nitrogen) to maintain stability and prevent degradation. Keep away from heat, sparks, and open flame.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Acidity (as H3PO4)	≤ 0.5%

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