Products Description
Triphenylphosphine has a molecular formula of C₁₈H₁₅P with a molecular weight of 262.30. It occurs as white to off‑white crystalline solid. It dissolves well in benzene, chloroform and ether, is slightly soluble in ethanol, and practically insoluble in water. Its melting point falls within 78‑81.5 °C, while its boiling point exceeds 360 °C under inert‑gas conditions.
As a significant ligand for homogeneous catalysis, triphenylphosphine is extensively utilized in petrochemical and fine‑chemical manufacturing. Continuous development of new application scenarios drives steady year‑on‑year growth in its market demand.
Products Chemical Properties
| Melting point | 79-81 °C(lit.) |
| Boiling point | 377 °C(lit.) |
| bulk density | 500-600kg/m3 |
| density | 1.132 |
| vapor density | 9 (vs air) |
| vapor pressure | 5 mm Hg ( 20 °C) |
| refractive index | 1.6358 |
| Fp | 181 °C |
| storage temp. | Store below +30°C. |
| solubility | water: soluble0.00017 g/L at 22°C |
| form | Crystals, Crystalline Powder or Flakes |
| color | White |
| Specific Gravity | 1.132 |
| Odor | odorless |
| Water Solubility | Insoluble |
| Hydrolytic Sensitivity | 8: reacts rapidly with moisture, water, protic solvents |
| Merck | 14,9743 |
| BRN | 610776 |
| Stability: | Stable. Incompatible with oxidizing agents, acids. |
| InChIKey | RIOQSEWOXXDEQQ-UHFFFAOYSA-N |
| CAS DataBase Reference | 603-35-0(CAS DataBase Reference) |
| NIST Chemistry Reference | Phosphine, triphenyl-(603-35-0) |
| EPA Substance Registry System | Triphenylphosphine (603-35-0) |
Safety Information
| Hazard Codes | Xn,N |
| Risk Statements | 22-43-53-50/53-48/20/22 |
| Safety Statements | 36/37-60-61-36/37/39-26 |
| RIDADR | 3077 |
| WGK Germany | 2 |
| RTECS | SZ3500000 |
| F | 9 |
| Autoignition Temperature | 425 °C |
| TSCA | Yes |
| Hazardous Substances Data | 603-35-0(Hazardous Substances Data) |
| Toxicity | LD50 orally in Rabbit: 700 mg/kg LD50 dermal Rabbit > 4000 mg/kg |
Products Application
Triphenylphosphine can be sulfonated with oleum to give the trisulfonic acid. This compound has found extensive utility: it takes part in Wittig synthesis and serves as a standard ligand in homogeneous catalysis. Through transesterification, it aids in producing the organophosphorus intermediate trimethyl phosphite, which can be further transformed into various organophosphorus pesticides such as dichlorvos, monocrotophos, and phosphamidon. In addition, triphenylphosphine functions as a stabilizer in rubber and resin manufacture, an antioxidant for polyvinyl materials, and a precursor for synthesizing alkyd and polyester resins.
Company Profile
Furuida (Jinan) Chemical Technology Co., Ltd., headquartered in Shandong, China, is a modern fine chemical enterprise integrating R&D, production, sales, and global services. With a strong commitment to the new chemical materials sector, the company operates on the principles of integrity, quality excellence, and customer-centric service. Through continuous technological innovation and rigorous quality control, it is steadily advancing its internationalization, standardization, and brand-building efforts.
The company is supported by an experienced foreign trade and technical service team, a well-established global supply network, and robust supply chain capabilities. Achieving annual sales of over RMB 600 million, it serves more than 5,000 industrial clients worldwide. Its business spans numerous countries and regions across Asia, Europe, Africa, and Oceania, earning a strong and loyal global customer base along with an excellent industry reputation.
Furuida’s core product lines include pharmaceutical intermediates and raw materials, food additives, electroplating chemicals, water treatment agents, dye auxiliaries, functional new materials, titanium compounds, metal salts, catalysts, and surfactants. These products are widely applied in pharmaceuticals, electronics, coatings, rubber and plastics, fine chemicals, and water treatment. The company is dedicated to providing global customers with stable, cost-effective chemical products and comprehensive one-stop solutions.
