Description

Potassium Tetrakis(4-tert-Butylphenyl)Borate is an organoboron salt widely recognized as a versatile and highly effective co-catalyst and activator in polymerization reactions. Its primary value lies in its ability to generate highly reactive cationic species from metallocene and other single-site catalysts, significantly enhancing polymerization efficiency and control. This compound is essential for R&D chemists and production engineers in the polymer industry, particularly for the synthesis of polyolefins with tailored molecular weights and microstructures.

Application

• Primary co-catalyst/activator for metallocene and other single-site catalysts in polyolefin (e.g., polyethylene, polypropylene) production.
• Used in the synthesis of advanced elastomers and specialty polymers requiring precise molecular architecture.
• Facilitates olefin polymerization research and development for novel polymer grades.
• Employed as a borate-based activator in catalyst systems for improved activity and stereoselectivity.
• Applicable in the development of photoinitiator systems and other advanced material formulations.
• Serves as a key reagent in organic synthesis and organometallic chemistry for creating cationic intermediates.

Basic Information

Product Name	Potassium Tetrakis(4-tert-Butylphenyl)Borate
CAS No.	401818-78-8
Molecular Formula	C40H52BK
Molecular Weight	574.75 g/mol
Synonyms	Potassium Tetrakis(4-tert-butylphenyl)borate; Tetrakis(4-tert-butylphenyl)borate Potassium Salt; KTpB; BTPB; Potassium (4-tert-butylphenyl)borate (4:1); Borate(1-), tetrakis[4-(1,1-dimethylethyl)phenyl]-, potassium; Potassium Tetrakis(p-tert-butylphenyl)borate; Activator KTpB
EINECS	Contact for details

Quality Control

Our Potassium Tetrakis(4-tert-Butylphenyl)Borate is manufactured under stringent quality management systems. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and elemental analysis, to ensure high purity and consistent performance as a catalyst activator. Certificates of Analysis (COA) detailing purity, assay, and impurity profiles are provided with every shipment to support your quality assurance protocols.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed in a dry environment to prevent degradation. For long-term storage, consider using desiccants or an inert atmosphere.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Potassium Content	6.5 - 7.2 %
Loss on Drying	≤ 1.0 %
Solubility	Soluble in common organic solvents (e.g., Toluene, THF)

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