Polypropylene CAS#9003-07-0
Polypropylene is an anisotactic polymer that exists in both low and high molecular weight forms.
The low molecular weight polypropylene is produced by passing propene at moderate pressure over a heated phosphoric acid catalyst supported on an inert material at approximately 200°C, resulting in the formation of trimer and tetramer products.
The high molecular weight polypropylene is obtained by polymerizing propene in an inert solvent such as heptane, in the presence of a catalyst system consisting of trialkyl aluminum and a titanium compound.
The final product is a mixture of isotactic and atactic polypropylene, with the isotactic form being the predominant component.
Polypropylene is widely used as a thermoplastic molding material for various industrial applications.
Polypropylene Chemical Properties
| Melting point | 157 °C |
| Boiling point | 120-132 °C |
| density | 0.9 g/mL at 25 °C (lit.) |
| refractive index | n20/D 1.49(lit.) |
| Fp | >470 |
| storage temp. | -20°C |
| form | particles (Spherical) |
| color | red |
| Odor | odorless |
| biological source | human |
| Merck | 137663 |
| Dielectric constant | 1.5（Ambient） |
| IARC | 3 (Vol. 19, Sup 7) 1987 |
| NIST Chemistry Reference | Polypropylene, atactic(9003-07-0) |
| EPA Substance Registry System | Polypropylene (9003-07-0) |
| WGK Germany | 3 |
| RTECS | UD1842000 |
| TSCA | Yes |
| HS Code | 39021000 |
| Hazardous Substances Data | 9003-07-0(Hazardous Substances Data) |
| Toxicity | LD50 intraperitoneal in rat: > 110gm/kg |
Product Application of Polypropylene CAS#9003-07-0
Polypropylene (PP) is a thermoplastic material widely used in a broad range of applications, including packaging, labeling, textiles, and more.
Due to its excellent processability and low production cost, PP is one of the most extensively produced polymers, particularly in the automotive industry.
Virgin polypropylene shows good resistance to photo-oxidation and thermal oxidation under moderate temperature conditions. However, it is relatively sensitive to various environmental aging factors, such as heat, light, and radiation, resulting in a limited service temperature range.
When exposed to high temperatures or irradiation environments, the tertiary hydrogen atoms in polypropylene chains are prone to oxidation reactions with oxygen. It is well recognized that PP degradation under outdoor conditions is influenced by both light exposure and temperature.
In addition, polypropylene can undergo photo-degradation, as certain molecular chains are affected within the UV wavelength range of approximately 310–350 nm.
Company Profile
Furuida (Jinan) Chemical Technology Co., Ltd. , based in Shandong, China, is a modern fine chemical enterprise that integrates R&D, manufacturing, sales, and global services. Deeply committed to advanced chemical materials, the company is driven by a clear philosophy: integrity, premium quality, and service excellence. Through sustained innovation and rigorous quality control, Furuida is steadily advancing toward greater international reach, operational standardization, and brand recognition.
The company is supported by an experienced team skilled in international trade and technical services, backed by a robust global supply network. With annual sales exceeding RMB 600 million, it serves more than 5,000 industrial clients across Asia, Europe, Africa, and Oceania—building a strong global customer base and an excellent industry reputation along the way.
Furuida's core product portfolio spans pharmaceutical intermediates, food additives, electroplating chemicals, water treatment agents, dye auxiliaries, functional new materials, titanium compounds, metal salts, catalysts, and surfactants. Widely used in pharmaceuticals, electronics, coatings, rubber and plastics, specialty chemicals, and water treatment, these products enable the company to deliver stable, cost-effective chemical solutions and comprehensive one-stop services that meet the diverse needs of its global customers.
