Description

Tetra-n-Butylphosphonium Bis(Oxalato-(2-O,O)-Borate) CAS NO 433941-16-3 is a specialized ionic liquid and organophosphonium salt with unique electrochemical properties. This compound is valued for its role as a high-performance electrolyte component and catalyst in advanced material synthesis. It is primarily required by manufacturers and researchers in the energy storage, specialty polymer, and fine chemical sectors seeking to enhance product performance and process efficiency.

Application

• Electrolyte Additive for Lithium-Ion Batteries: Used to improve thermal stability, cycle life, and safety of high-voltage battery systems.
• Catalyst for Polymerization Reactions: Acts as a catalyst or co-catalyst in the synthesis of specialty polymers and resins.
• Intermediate for Ionic Liquids: Serves as a key precursor for formulating task-specific ionic liquids used in separation and electrochemistry.
• Corrosion Inhibitor Formulations: Incorporated into advanced coatings and fluids for metal protection in demanding environments.
• Research & Development: Utilized in academic and industrial R&D for exploring new electrochemical applications and material science.
• Phase Transfer Catalyst (PTC): Facilitates reactions between reagents in immiscible phases in organic synthesis.

Basic Information

Product Name	Tetra-n-Butylphosphonium Bis(Oxalato-(2-O,O)-Borate)
CAS No.	433941-16-3
Molecular Formula	C20H36BO8P
Molecular Weight	446.28 g/mol
Synonyms	Tetrabutylphosphonium Bis(oxalato)borate; TBPC4BOB; P4444BOB; Tetra-n-butylphosphonium Bis(oxalato)borate; Phosphonium, tetrabutyl-, (T-4)-bis(oxalato-κO1,κO2)borate(1-); TBABOB; Ionic Liquid [P4444][BOB]; Tetrabutylphosphonium Oxalatoborate
EINECS	Contact for details

Quality Control

Our Tetra-n-Butylphosphonium Bis(Oxalato-(2-O,O)-Borate) is manufactured under strict quality management systems. Each batch undergoes rigorous analytical testing, including NMR, HPLC, and Karl Fischer titration, to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing all specifications are provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed under an inert atmosphere (e.g., nitrogen or argon) after opening to prevent degradation from moisture absorption.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Heavy Metals (as Pb)	≤ 10 ppm
Residue on Ignition	≤ 0.1%

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