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Triphenylphosphane CAS 603-35-0

Molecular Formula: C18H15P

Formula Weight: 262.29

ZSpharmac: Triphenylphosphane Supplement

Product Name: Triphenylphosphane
CAS No: 603-35-0
Purity: 99%

Basic Info

Product Name:Triphenylphosphane
Other Names:Triphenylphosphine
Place of Origin:Shandong, China
Brand Name:ZSpharmac
Type:Pesticide Intermediates
Appearance:White Crystals,Crystalline Powder or Flakes
EINECS No.:210-036-0
Storage:Store Below +30°C.
SigmaAldrich COA

What is Triphenylphosphane?

The molecular formula of triphenylphosphine is C18H15P, as well as the molecular weight is 262.30. melting point is 78.5-81.5 ° C. Triphenylphosphine is a crucial ligand for uniform drivers made use of in petrochemical as well as great chemical manufacturing, as well as brand-new uses are regularly being developed, as well as the need is increasing year by year. The triphenylphosphine particle is a non-centrosymmetric tetrahedral structure. The phosphorus atom with a pair of single set electrons and the three benzene particles inhabit four vertices specifically. It has an evident tendency to form enantiomeric crystals. Triphenylmethane has actually been reported to develop orthorhombic crystals with enantiomeric area group P212121, while triphenylphosphine has only been found to form a centrosymmetric monoclinic framework with space group P21/a. The XRD results of the monoclinic framework of readily available triphenylphosphine show that the corresponding crystals are not of high pureness, and also there are some unknown phases and also pollutants. As a result, the readily offered triphenylphosphine crystals are purified to prepare high-purity new crystal frameworks. For triphenylphosphine The study and application of the catalytic activity of phosphine substances are of fantastic relevance.

Triphenylphosphane Properties:

Melting point 79-81 °C(lit.)
Boiling point 377 °C(lit.)
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 Gravity1.132
Water Solubility Insoluble


Triphenylphosphane Uses

  1. Triphenylphosphane is used in pesticides to synthesize organophosphorus intermediate trimethyl phosphite by transesterification, and then a series of organophosphorus insecticides such as dichlorvos, monocrotophos and phosphoramine can be obtained. In addition, it can be used as synthetic rubber and resin Stabilizer of polyvinyl chloride, antioxidant of polyvinyl chloride, used as raw material for synthesizing alkyd resin and polyester resin.
  2. Triphenylphosphane is used in organic synthesis, polymerization initiator, raw material of antibiotic drug clindamycin, and standard sample for determination of phosphorus in organic trace analysis.
  3. Triphenylphosphane is widely used in medicine, petrochemical, paint, rubber and other industries. It can be used as catalyst, accelerator, inhibitor, light and heat stabilizer, lubricating oil antioxidant, etc. It is also used as a raw material for polymerization initiators, antibiotic drugs such as clindamycin.

Preparation of flaky triphenylphosphane

(1) Put in a 1000ml four-necked flask into a phenylmagnesium chloride solution as an initiator. 60g of magnesium chips were put in. Warm to reflux. 300 g of tetrahydrofuran, 420 g of toluene, and 240 g of chlorobenzene were mixed well in advance. Control the dropwise addition under reflux. Finished dripping in 3 hours. After dripping, the reflux reaction was continued for 1 hour; (2) be cooled to 80 ℃, drip the mixture of 96g phosphorus trichloride and 96g toluene, control at 80~85 ℃ 4 hours drip off, continue to react for 2 hours after dripping; (3) Cool to room temperature, and dropwise add 600 g of 10-15% dilute sulfuric acid. After dropping, continue stirring for 10 minutes. Let stand for 30 minutes. Separate the lower layer of acid water. Then wash with 600g of clean water. Finally, wash with 100 g of 30% liquid caustic soda. Fully separate the lower water phase; (4) Take the upper organic phase, heat up and distill. Steam to 120°C with no fractions, then distill under reduced pressure until the solvent is completely evaporated to dryness; (5) Cool to 60° C. or lower, add 600 g of methanol, and stir for 1 hour. Great to space temperature as well as allow mean 1 hour. Aspirate the supernatant. The temperature is increased for distillation, and the methanol is completely evaporated to dryness; (6) Transfer the remaining feed liquid to a rectifying flask for rectification. The front fraction is removed during rectification, and the main fraction is collected to obtain high-purity triphenylphosphine; (7) triphenylphosphine is heated and melted, put into the slicer to cool and slice; its concrete process is: pass chilled water into the slicer jacket, connect the power supply to rotate the slicer hub. Put the melted triphenylphosphine into the material liquid tank of the slicer, and the material liquid in the tank is driven by the rotating hub. The feed liquid is driven by the rotating hub and frozen by the freezing water to form a sheet-like solid, and then the solid is scraped off from the rotating hub with a scraper to obtain a regular sheet-like triphenylphosphine; (8) Final analysis and packaging. Experimental results: The appearance of the obtained sheet-like triphenylphosphine is: 10.2mm×8.0mm×1.1mm (length×width×thickness) The dissolving speed of the obtained sheet-like triphenylphosphine is 1 minute and 18 seconds, the specific surface area is 70.048 m2/g, the purity is 99.8%, no residual solvent, and the chromaticity is less than or equal to 10.

About Us

The production base is located in Zhangqiu chemical industry park and Tai’an high-tech chemical industry park. laboratory and workshop in strict accordance with the GMP standard and the product fit national ISO9001 and ISO2000 standards.

“Zhishang” products are exported to Europe, North and South America, the Middle East, Asia Pacific and Africa area, so as to establish a long-term and stable cooperation relationship with customer in the world.

Company Info
  • Business Type: Manufacturer
  • Product Range: Additive , Chemical Auxiliary & Catalyst , Organic Chemicals
  • Products/Service: Organic Intermediate,Inorganic Chemistry, APIs, Dyestuffs And Pigments, Fragrance And Spices, Food Additives
  • Total Employees: 51~100
  • Capital (Million US $): 10000000RMB
  • Year Established: 2016
Production Capacity
  • No. of Production Lines : 8
  • No. of QC Staff : 5 -10 People
  • OEM Services Provided : yes
  • Factory Size (Sq.meters) : 3,000-5,000 square meters
  • Certificate: ISO9001 , CE , GMP , API , MSDS
  • Factory Location : Diao Town Industry Park, Zhangqiu City, Jinan City, Shandong Province, China.


Pre-Sales Service

* Prompt reply and 24 hours online, professional team to provide best price and high quality product.

* Sample testing support.

* Every batch of products will be tested to ensureits quality.

*The packing also can be according the customers` requirment.

*Any inquiries will be replied within 24 hours.

*we provide Commerical Invoice, Packing List, Bill of loading, COA , Health certificate and Origin certificate. If your markets have any special requirements, let us know.


After-Sales Service

*The fact of logistics information monitoring.

* Any questions about the product can be consulted at any time.

*Product has any problem can return.


Do you accept sample order?

We will make samples before mass production, and after sample approved, we’ll begin mass production. Doing 100% inspection during production, then do random inspection before packing.



You can get free samples for some products,you only need to pay the shipping cost or arrange a courier to us and take the samples. You can send us your product specifications and requests,we will manufacture the products according to your requests.

What’s your MOQ?

Our MOQ is 1kg. But usually we accept less quantity such as 100g on the condition that sample charge is 100% paid.

Do you supply product report?

Yes. We’ll give you product analysis report before shipping.

  Is there a discount?

Different quantity has different discount.


1. ≤50kg, Express delivery recommended, usually called as DDU service;

2. ≤500kg, Air shipping recommended, usually called as FOB, CFR, or CIF service;

3. >500kg, sea shipping recommended, usually called as FOB, CFR, or CIF service;

4. For high value products, please select air shipping and express delivery for safe.

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