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9002-88-4

Name Poly(ethylene)
CAS 9002-88-4
EINECS(EC#) 200-815-3
Molecular Formula [C2H4]n
MDL Number MFCD00084423
Molecular Weight 28.0532
MOL File 9002-88-4.mol

Chemical Properties

Appearance solid; appearance depends upon method of forming;
Melting point  92 °C
Boiling point  48-110 °C(Press: 9 Torr)
density  0.962 g/mL at 25 °C
Fp  270 °C
storage temp.  ?20°C
form  powder
color  White
Specific Gravity 0.95
Stability: Stable, but breaks down slowly in uv light or sunlight. Incompatible with halogens, strong oxidizing agents, benzene, petroleum ether, aromatic and chlorinated hydrocarbons, lubricating oils.
Water Solubility  Soluble in acetone and benzene. Insoluble in water.
Merck  14,7567
Dielectric constant 2.2(Ambient)
Uses
Polyethylene (PE) is a thermoplastic polymer consisting of long hydrocarbon chains. PE is used in a number of applications including flexible film packaging produced by the blown film process. Significant differences in physical properties have been observed in linear low density polyethylene (LLDPE), low density polyethylene (LDPE), and high density polyethylene (HDPE) blown films. Structural parameters, such as density/ crystallinity, molecular weight and its distribution, short chain branching (SCB)/ long chain branching (LCB) length and amount, and crystallinemorphology are the key factors that control the properties. HDPE is the most crystalline PE, since its chains are linear and contain very little branching. There are many intrinsic factors affecting polymer degradation. Such factors include the number of branching of the polymer, the molecular weight, the hydrophobicity/hydrophilicity ratio, the crystallinity, and the morphology of the polymer. There are several publications that study the degradation of PE and the alteration of plastic surfaces in the laboratory or under controlled conditions in the field.
IARC 3 (Vol. 19, Sup 7) 1987
NIST Chemistry Reference Polyethylene(9002-88-4)
EPA Substance Registry System Ethene, homopolymer(9002-88-4)

Safety Data

Safety Statements 
WGK Germany  3
RTECS  TQ3325000
TSCA  Yes
HS Code  39041090
Safety Profile
Questionable carcinogen with experimental tumorigenic data by implant. Reacts violently with F2. When heated to decomposition it emits acrid smoke and irritating fumes.
Hazardous Substances Data 9002-88-4(Hazardous Substances Data)

Hazard Information

Material Safety Data Sheet(MSDS)

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