INTRODUCTION
Triphenyl phosphite (TPP) is an organophos-phorous compound and is a colorless, viscous liquid with high boiling point. It possesses a characteristic, delicate fragrance. Its uses can be found largely in polymers. Besides, it participates as a reactant in organic syntheses.
Manufacture
The triphenyl ester of phosphorous acid is produced by reaction of phenol with phosphorous trichloride, hydrochloric acid being the by-product.
| Synonyms | Triphenoxyphosphine Phosphorous acid triphenyl ester |
| CAS no. | 101-02-0 |
| EINECS no. | 202-908-4 |
| Molecular formula | (C6H5O)3P |
| Molecular weight | 310.29 |
| Structure |  |
Applications
| in Polymers |
|---|
| As an antioxidant and a stabilizer in PVC, PP, PS, epoxy, and ABS resins. TPP imparts excellent color stability and heat stability |
| Improves color and clarity of alkyd resins |
| Used in process of emulsion polymerization |
| in Organic Syntheses |
|---|
| Consumed in some reactions that convert alcohol to acid chloride |
| As peptide coupling agent |
| In manufacture of pesticides and optical brighteners |
| RM for production of trimethyl phosphine |
| RM for synthesis of other organic phosphites such as diphenyl isodecyl phosphite and diphenyl iso-octyl phosphite |
| Other Applications |
|---|
| As chelating agent |
| As additive in lubricants and adhesives |
| As flame retardant |
SPECIFICATIONS
| Test | Unit | Specifications |
|---|---|---|
| Appearance | – | Clear Liquid |
| Acid Value | Mg KOH/g | Max 0.1 |
| Specific Gravity @ 25°C | – | 1.175-1.189 |
| Refractive Index @ 25°C | – | 1.5800 -1.5950 |
| Color | APHA | Max 50 |
| Free Phenol by GC | % | Max 1.0 |
| Triphenyl phosphite by GC | % | Min 99.0 |
| Phosphorus | % | 9.7-10.1 |
STORAGE
The product is stored at ambient temperature.
PACKING
225 kg UN-approved HDPE drum.
REACH Status
TPP offered by ExSyn is registered under EU REACH regulations.
ExSyn offers TPP on commercial scales and welcomes enquiries. No matter the quantity you need, our exceptional quality and service will make ExSyn your supplier of choice! If you need any additional information or SDS, please get in touch with us.
Methyl magnesium chloride is the simplest of Grignard’s reagents. The neat molecule is sensitive to air and moisture. Therefore, it is offered as solution in THF with variable molarity values.
Polysorbate 20 is a gentle, oily, liquid cosmetic additive that functions as a non-ionic surfactant and wetting agent that enhances the spread-ability of liquids.
Iodomethane, also known as methyl iodide, is a colorless, non-flammable liquid with pungent, ethereal odor that darkens on exposure to light. It occurs naturally in oceans as a product of marine algae.
1,4-Dibromobutane is a chemical compound from the group of aliphatic, saturated halogenated hydrocarbons. 1,4-Dibromobutane shows similar reactions as the mono-brominated 1-bromobutane, however, in contrast, it is doubly functionalized.
Tetrabutylammonium fluoride trihydrate (TBAF trihydrate) is a hygroscopic solid and is a versatile reagent in many chemical reactions. It us usually consumed in aldol-type condensation, Michael-type, and ring opening reactions.
Pyrophosphoryl chloride is colourless to pale yellow liquid, reasonably easy to handle. It reacts violently with water & miscible with most organic solvents.
It is used in pharmaceutical and other organic synthesis, as laser materials and electronic components.
Benzilic acid ethyl ester is an oil organic liquid. Its reactivity is attributed to the presence of the hydroxyl group at alpha-position to the carboxylic acid group and hence it participates in various reactions leading to value-added intermediates and APIs.
Bromobenzene, an aryl halide, is a clear, colorless liquid with a pleasant odor. It is soluble in methanol and diethyl ether, and very slightly soluble in cold water.
Dibutyltin laurate is an organotin compound with oily appearance. The lauric acid ester is used in various industrial applications as catalyst.