Description

Bis(p-tert-Butylphenyl) Hydrogen Phosphate is a specialized organophosphate compound widely utilized as a high-performance intermediate and additive. Its molecular structure provides excellent thermal stability and compatibility with various polymer systems, making it a valuable component in advanced material formulations. This product is essential for manufacturers in the polymer, lubricant, and specialty chemical industries seeking to enhance product performance and durability.

Application

• Primary use as a stabilizer and antioxidant intermediate in the production of high-temperature polymers and engineering plastics.
• Acts as a synergistic component in advanced lubricant and grease formulations to improve thermal and oxidative stability.
• Employed as a flame retardant synergist in specific halogen-free flame-retardant systems for plastics and textiles.
• Serves as a key chemical intermediate in the synthesis of other phosphate esters and specialty surfactants.
• Used in research and development for novel extractants and metal complexing agents in hydrometallurgy.
• Functions as a processing aid and compatibilizer in polymer blends and composite materials.

Basic Information

Product Name	Bis(p-tert-Butylphenyl) Hydrogen Phosphate
CAS No.	21150-89-0
Molecular Formula	C₂₀H₂₇O₄P
Molecular Weight	362.40 g/mol
Synonyms	Di(4-tert-butylphenyl) hydrogen phosphate; Bis(4-tert-butylphenyl) phosphate; Di-p-tert-butylphenyl phosphate; Phosphoric acid, bis(4-(1,1-dimethylethyl)phenyl) ester; 4-tert-Butylphenyl phosphate; DBPP; DTBPHP; (4-tert-Butylphenoxy)phosphonic acid O-(4-tert-butylphenyl) ester
EINECS	244-245-9

Quality Control

Our production of Bis(p-tert-Butylphenyl) Hydrogen Phosphate adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC, GC, and NMR to verify identity and assay. Certificates of Analysis (COA) documenting all critical parameters are provided with every shipment, and we support compliance with relevant global regulatory frameworks.

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 initial opening to prevent degradation from atmospheric moisture. Keep away from strong bases and oxidizing agents.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 98.0%
Melting Point	95 - 105 °C
Loss on Drying	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Related Substances (HPLC)	Total impurities ≤ 2.0%

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