Monoethylene Glycol (MEG) is a versatile chemical compound commonly used as an antifreeze and in the production of polyester fibers and resins.
What is Monoethylene Glycol?
Monoethylene Glycol (MEG) is a colorless, odorless, and sweet-tasting organic compound with the chemical formula C2H6O2. It is a crucial industrial chemical used primarily as an antifreeze in various applications, including automotive cooling systems and as a deicing agent for aircraft. MEG is also a fundamental building block in the production of polyester fibers and resins.
Mono Ethylene Glycol Advantages:
Monoethylene Glycol offers several advantages, including:
- Excellent Antifreeze: MEG lowers the freezing point of water, making it a vital component in antifreeze formulations to protect engines and pipelines from freezing.
- Hygroscopic Properties: MEG has a high affinity for water, making it effective in moisture removal from natural gas and air systems.
- Polyester Production: It serves as a key raw material in the manufacture of polyester fibers, films, and resins.
- Chemical Intermediary: MEG is a versatile chemical intermediary used in various chemical processes.
- Non-toxic and Biodegradable: MEG is non-toxic to humans and environmentally friendly, as it is readily biodegradable.
Mono Ethylene Glycol Uses:
- Antifreeze and Coolants
- Deicing Agent
- Polyester Fiber and Resin Production
- Natural Gas Dehydration
- Chemical Intermediary in Various Industries
Mono Ethylene Glycol ( MEG ) Specifications [ Mono Ethylene Glycol ( MEG ) Analysis ]:
| TEST | STANDARD | RESULT | UNIT | REF |
| Appearance | Clear Liquid | Clear Liquid | _ | Visual |
| Purity | Min. 99.0 | 99.9 | %wt | ASTM E202 |
| Diethylene glycol | Max. 0.5 | 0.08 | %wt | ASTM E202 |
| Other Glycols | Max. 0.1 | 0.005 | %wt | ASTM E202 |
| Refractive Index @ 25ºC | 1.430 – 1.432 | 1.431 | _ | _ |
| Specific Gravity @ 20 °C | 1.1151‐1. 1156 | 1.1155 | _ | ASTM D891 |
| Color | Max. 15 | 5.0 | Pt-Co | ASTM D209 |
| Acidity (as acetic acid) | Max. 0.005 | 0.003 | %wt | ASTM D1613 |
| Distillation range | 193‐204 | 195-198 | °C | ASTM D1078 |
| Ash | Max. 0.0045 | 0.003 | %wt | ASTM E347 |
| Water | Max. 0.3 | 0.04 | %wt | ASTM E203 |
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