Description and features
Catonium BTPC (Butyltriphenylphosphonium Chloride) is a white to greyish powder with the chemical formula C22H24ClP. As a quaternary phosphonium salt, BTPC serves important roles in organic synthesis, specifically as a Wittig reagent and as a phase transfer catalyst. Moreover, this material is highly soluble in water and polarizable solvents, enhancing its utility in various chemical reactions.
Butyltriphnylphosphonium Chloride is also known as BTPC, BTPPC, BuTPPC and TPBP-Cl.
Compared to amines, imidazoles and quaternary ammonium salts CatOnium BTPC features considerable better latency and thermal stability. Further it offers a low odor, minimal color formation and controlled reactivity.
Availability
United States: CatOnium BTPC is in stock in our local warehouses. Our lead time is about one week if delivered in 20 KG fiber drums.
We can also serve Canada, South America, South Africa, and other markets. Please contact our sales department for more details.
➔ Limited available in the European Union as this product has not been REACH registered (yet).
Product Identification
| CAS number | 13371-17-0 |
| EC number | 236-443-3 |
| HS code | 2931 39 90 |
| Sensitivity | Hygroscopic |
Specification
| Appearance | White to greyish powder |
| Assay | ≥ 98.00 % |
| Water content | ≤ 1.00 % |
Application
CatOnium BTPC (Butyltriphenylphosphonium Chloride) is being on organic synthesis as a wittig reagent and as phase transfer catalyst, used to accelerate the cure of phenolic based epoxy reins, certain fluoroelastomers and thermosetting powder coatings.
Packaging
Available packaging: 20 KG fiber drums.
Special packaging is available on request.
Storage
Store Butyltriphenylphosphonium Chloride in a cool, dry and well-ventilated area and in line with legal requirements.
Keep BTPC away from heat sources and oxidizing agents
MSDS
A Material Safety Data Sheet (MSDS) is available for CatOnium BTPC and all other products supplied by Vesta Chemicals BV.
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.
Molecular and structural information
| Molecular formula | C22H24ClP |
| Molecular weight | 354.85 g/mol |
| Smiles notation | [Cl-].CCCC[P+](c1ccccc1)(c1ccccc1)c1ccccc1 |
| InChi Key | MFIUDWFSVDFDDY-UHFFFAOYSA-M |
| Chemical formula |  |
Physicochemical information
| Boiling point | No data available |
| Relative density @ 20 ºC | No data available |
| Flash point | >270 ºC |
| Melting point | 223 – 227 ºC |
| Partition coefficient (log Pow) | 1.7864 |
| Solubility in water | Soluble |
| Vapor pressure (MGM) | No data available |