Description

Phosphorous Acid Tris(2-Butoxyethyl) Ester is an organophosphorus compound that serves as a versatile intermediate and functional additive. Its molecular structure, featuring three butoxyethyl groups, provides unique properties such as good solubility in organic media and effective chelating capabilities. This chemical is particularly valuable in the formulation of specialty polymers, lubricant additives, and as a stabilizer in various industrial processes where control of metal ions is required.

Application

• As a chelating agent and stabilizer in polymer production, particularly for PVC and other halogenated polymers.
• As a key intermediate in the synthesis of specialized organophosphorus flame retardants and plasticizers.
• As a lubricant and anti-wear additive in advanced industrial lubricants and hydraulic fluids.
• In the formulation of corrosion inhibitors for metal treatment and coating applications.
• As a solvent and co-solvent in specialty coatings, inks, and adhesive formulations.
• In agricultural chemical formulations as a stabilizing agent or intermediate.

Basic Information

Product Name	Phosphorous Acid Tris(2-Butoxyethyl) Ester
CAS No.	2718-67-4
Molecular Formula	C18H39O6P
Molecular Weight	382.47 g/mol
Synonyms	Tris(2-butoxyethyl) Phosphite; 2-Butoxyethanol Phosphite (3:1); Phosphorous Acid Tris(2-Butoxyethyl) Ester; Tris(2-butoxyethyl) Phosphite; Phosphorous Acid Tri(2-butoxyethyl) Ester; TBEP (common abbreviation); Tris(2-butoxyethoxy)phosphine; Ethanol, 2-butoxy-, phosphite (3:1)
EINECS	220-315-6

Quality Control

Our Phosphorous Acid Tris(2-Butoxyethyl) Ester is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) documenting key parameters such as assay, color, acidity, and moisture content are provided and available upon request to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after opening to prevent absorption of atmospheric moisture. For long-term storage, consider using an inert atmosphere (e.g., nitrogen blanket) to minimize potential oxidation.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms to structure
Assay (GC or Titration)	≥ 95.0%
Acidity (as H3PO3)	≤ 0.5%
Water Content (KF)	≤ 0.5%
Color (APHA)	≤ 100
Specific Gravity (20°C)	1.010 - 1.050
Refractive Index (20°C)	1.440 - 1.450

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