Description

Tributyl Phosphate CAS NO 126-73-8 is a high-purity organophosphorus compound widely used as a solvent and extractant. Its excellent solvating power and chemical stability make it a critical processing aid in several high-value industrial sectors. This product is essential for manufacturers in the chemical, pharmaceutical, and nuclear industries seeking reliable performance in separation and purification processes.

Application

• Solvent and Plasticizer: Acts as a primary solvent for cellulose esters, lacquers, and plastics, and as a flame-retardant plasticizer for vinyl resins and nitrocellulose coatings.
• Hydrometallurgical Extraction: A key extractant in the purification of rare earth elements and in the solvent extraction processes for uranium and other precious metals.
• Chemical Intermediate: Utilized as an intermediate in the synthesis of other organophosphorus compounds and specialty chemicals.
• Defoaming Agent: Employed as an effective defoamer in aqueous systems and in the production of paper and textiles.
• Antifoaming Agent in Cement: Used to control foam and improve the workability and density of cement and concrete mixtures.
• Gasoline Additive: Functions as an anti-icing agent and scavenger in aviation fuels.
• Nuclear Fuel Reprocessing: Serves as a major component in the PUREX process for the reprocessing of spent nuclear fuel.
• Catalyst and Stabilizer: Acts as a catalyst in various organic reactions and as a stabilizer for peroxides and chlorinated hydrocarbons.

Basic Information

Product Name	Tributyl Phosphate
CAS No.	126-73-8
Molecular Formula	C12H27O4P
Molecular Weight	266.31 g/mol
Synonyms	Tributyl phosphate; TBP; Phosphoric acid, tributyl ester; Butyl phosphate; Tributoxyphosphine oxide; Celluphos 4; Disflamoll TB; Kronitex TBP; KP 140; TBEP (common misnomer, often confused); Tri-n-butyl phosphate; n-Tributyl phosphate
EINECS	204-800-2

Quality Control

Our Tributyl Phosphate is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. The product undergoes comprehensive analytical testing, including gas chromatography (GC) and titration methods, to meet precise customer specifications. A Certificate of Analysis (COA) detailing purity, identity, and impurity profiles is provided with every shipment to guarantee compliance with your application requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area away from incompatible materials such as strong bases and oxidizing agents. Recommended storage temperature is between 15°C and 25°C (59°F and 77°F). Keep container tightly sealed when not in use to prevent moisture absorption.

Specification

Item	Specification
Appearance	Colorless to pale yellow liquid
Identification (IR)	Conforms
Assay (GC)	≥ 98.5%
Acidity (as H3PO4)	≤ 0.1%
Water Content (Karl Fischer)	≤ 0.1%
Refractive Index (n20D)	1.422 - 1.425
Density (20°C)	0.973 - 0.983 g/mL
Boiling Point	~ 289°C (dec.)
Flash Point	> 146°C (Closed Cup)

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