1. Basic Identification
· CAS Number: 9002-88-4
· Chemical Formula: (C₂H₄)ₙ
· Synonyms: Petrothene, PEP211, Polyethylene
· Appearance: White to off-white powder
· Minimum Order Quantity (MOQ): 1 FCL (Full Container Load)
· HS Code: 39041090
2. Product Overview
Polyethylene is a flexible, waxy, translucent polyalkene thermoplastic material. Various production methods are adopted to prepare polyethylene products with different properties. In the ICI process, ethylene with a small amount of oxygen is processed under pressure over 1500 atmospheres and temperature at 200°C.Low-density polyethylene (relative density 0.92) has a molecular weight of 50,000–300,000 and softens at about 110°C. High-density polyethylene (relative density 0.945–0.96) has a molecular weight up to 3,000,000 and softens at about 130°C. Low-density polyethylene has lower crystallinity and higher atactic structure. It is widely used as electrical insulation material, features strong acid resistance, and is easy for molding and blow molding.
3. Physicochemical Properties
| Parameter | Specification |
| Melting point | 92 °C |
| Boiling point | 48–110 °C (9 Torr) |
| Density | 0.962 g/mL (25 °C) |
| Refractive index | 1.51 |
| Flash point | 270 °C |
| Storage temperature | -20 °C |
| Form | Powder |
| Color | White |
| Specific gravity | 0.95 |
| Biological source | Rabbit |
| Solubility | Soluble in acetone and benzene; insoluble in water |
| Merck | 14, 7567 |
| Dielectric constant | 2.2 (Ambient) |
| Stability | Stable; slow degradation under UV or sunlight; incompatible with halogens, strong oxidants, benzene, petroleum ether, aromatic hydrocarbons, chlorinated hydrocarbons and lubricating oils |
| Surface tension | 35.7 mN/m (20 °C) |
| NIST Chemistry Reference | Polyethylene (9002-88-4) |
| IARC | 3 (Vol. 19, Sup 7) 1987 |
| EPA Substance Registry System | Polyethylene (9002-88-4) |
4. Safety Information
| Item | Details |
| Safety Statements | 22-24/25 |
| WGK Germany | 3 |
| RTECS | TQ3325000 |
| TSCA | Yes |
| HS Code | 39041090 |
| Hazardous Substances Data | 9002-88-4 |
5. Main Applications
Polyethylene (PE) is a thermoplastic polymer with long hydrocarbon chains. It is widely used in many fields:
· Flexible film packaging made by blow film process
· Viscosity control, suspension improvement and stability enhancement in cosmetic formulas
· Injection and blow molded toys, household products and caps
· Injection molded car seats, mower components and buckets
· Thin-walled injection molded containers and daily necessities
· Hot-melt coatings for paper, casting additives, candles, oil-based inks and hot-melt adhesives
6. Delivery Time
· Inventory orders: 2–3 working days
· New production orders: 7–10 working days
