EDC (Ethylene Dichloride)
Description
EDC is a colorless liquid with a mild odor. It is toxic and extremely flammable. EDC is a good organic solvent but slightly soluble in water.
Properties
| Unit | Quantity |
|---|
| Molecular weight | g/mol | 98.96 |
| Freezing point | °C | -35 |
| Boiling point | °C | 83.5 |
| Density | g/cc | 1.252 |
Specifications
| Component | Unit | Quantity / Description |
|---|
| EDC | wt % | 99.9 min |
| Acidity | ppmw as HCI | 2 max |
| Water | ppmw, wt | 150 max (1) |
| Iron | ppmw, wt | 1 max |
| Benzene | ppmw, wt | 50 max |
| Low boilers | ppmw, wt | 200 max |
| High boilers | ppmw, wt | 200 max |
| Color | APHA | less than 10 |
| Boiling range | °C | 1.5°C, including 83.5°C |
| Appearance | | clear |
| Specific gravity | (25°C/25°C) | 1.245-1.255 |
Residue on evaporation | ppmw | 20 max |
Hazards and safety
EDC is extremely flammable. Poisonous gases are produced when it burns. It is a reactive toxic liquid. Avoid inhalation of the vapors.
Avoid contact with skin and eyes.
Applications
About 95% of the EDC production is converted to VCM for PVC production. Some is used as an organic solvent, as a fumigant, and in the chemical synthesis of various products.
Storage and handling
Storage containers should be tightly closed and labelled:
“Hazardous Chemical”. Store away from alkali metals and ignition sources. Wear goggles, self-contained breathing apparatus and rubber over clothing.
Packaging
EDC is shipped in large steel chemical tanks.
UN or ID No. 1184.
Operating companies
Saudi Petrochemical Company (SADAF).
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