Description and features
CatOnium TBPA (tetrabutylphosphonium acetate 40% solution) is a 40% aqueous solution of tetrabutylphosphonium acetate, used primarily as a highly effective phase-transfer catalyst. In particular, it enhances reaction rates and product yields in various organic synthesis applications, especially in transesterification processes. Due to its stability and performance, it is ideal for industrial use in polymer, pharmaceutical, and fine chemical production.
Moreover, with excellent thermal and chemical stability, CatOnium TBPA ensures consistent performance under demanding conditions. In addition, its soft Lewis acid properties enable broader catalytic activity, particularly in reactions involving transition metals. Because it is water-based, it integrates easily into aqueous systems with minimal environmental impact. Altogether, this combination of efficiency, versatility, and ease of handling makes CatOnium TBPA a valuable solution for industrial chemical synthesis.
Synonyms
Tetrabutylphosphonium acetate 40% aqueous solution, tetrabutylphosphanium;acetate, Phosphonium, tetrabutyl-, acetate (1:1).
Availability
CatOnium TBPA is in stock in our local warehouses. Our lead time is about one week if delivered in 20 KG drums. Please contact our sales department for more details.
This substance (CAS: 1779-51-7) has been registered under REACH.
Product Identification
| Product name | Tetrabutylphosphonium acetate 40% solution |
| CAS number | 30345-49-4 |
| EC number | 250-139-8 |
| HS code | 29314980 |
Specification
| Appearance | Colourless to light yellow liquid |
| Assay | No data available |
| Melting Point | No data available |
| Water content | ≤0.50 % |
| Loss on drying | No data available |
Application
CatOnium TBPA serves as a powerful phase-transfer catalyst in esterification and transesterification reactions, playing a key role in producing polymers, resins, and specialty monomers. It effectively facilitates reactions between immiscible phases, making it ideal for various organic synthesis processes in both the pharmaceutical and agrochemical industries. Manufacturers also use TBPA in polycarbonate production. Its Lewis acid properties enable it to catalyze reactions involving transition metals, which broadens its application in advanced synthesis routes. Additionally, its water-based formulation allows users to easily integrate it into aqueous processing systems. With these capabilities, TBPA supports high-efficiency, low-waste chemical manufacturing across a wide range of industrial sectors.
Packaging
Available packaging: 20 KG drums.
Special packaging is available on request.
Storage
Store CatOnium TBPA in a cool, dry, and well-ventilated area. Always keep the container tightly closed and protect it from direct sunlight, heat sources, and moisture. Since the product is hygroscopic, make sure to shield it from humidity. For optimal performance, maintain a recommended storage temperature between 5 °C and 30 °C.
MSDS
An MSDS outlines the hazards of a product and explains how to handle, use, and store the product safely. Besides it provides important regulatory and emergency response information for the purchased product.
A Material Safety Data Sheet (MSDS) is available for CatOnium TBPA and all other products supplied by Vesta Chemicals BV.
Molecular and structural information
| Molecular formula | C18H39O2P |
| Molecular weight | 318.48 g/mol |
| Smiles notation | CCCC[P+](CCCC)(CCCC)CCCC.CC(=O)[O-] |
| InChi Key | GFZMLBWMGBLIDI-UHFFFAOYSA-M |
| Chemical formula |  |
Physicochemical information
| Boiling point | No data available |
| Bulk density | No data available |
| Flash point | No data available |
| Melting point | No data available |
| Partition coefficient (log Pow) | No data available |
| Solubility in water | No data available |
| Vapor pressure (MGM) | No data available |