Chemical Product Library / Reference
Triphenyl phosphite
Chemical identity, technical indicators, performance and application reference. Confirm specifications and regulatory suitability against supplier documentation.
Chemical identity
| English name | Triphenyl phosphite |
|---|---|
| English synonyms | TPPi;Triphenyl phosphite;Phosphorous acid triphenyl ester |
| Chinese name | 亚磷酸三苯酯 |
| Chinese synonyms | TPPi;亚磷酸三苯酯;抗氧剂TPPi |
| Chemical category | Antioxidants |
| CAS No. | 101-02-0 |
| EINECS No. | 202-908-4 |
| Molecular formula | C18H15O3P |
| Molecular weight | 310.29 |
PubChem structure images are reference depictions, not proof of composition, purity, grade, or regulatory status. Mixtures and polymers may not have a single representative structure.
Technical indicators
Assay ≥99.0%; phosphorus content ≥9.8%; acidity (as H3PO4) ≤0.05%; water ≤0.1%
Performance characteristics
Colorless to pale yellow liquid or crystalline solid (mp ~22°C), secondary antioxidant and stabilizer
Application scenarios
Polymer antioxidant (PVC, ABS, polyolefins), phosphite intermediate, lubricant additive