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Ethylene Glycol
Ethylene glycol is obtained in the process of ethylene oxide hydration and is then purified in the rectification process.
Application
Ethylene glycol is used for manufacturing polyester, which is subsequently used in the production of fibres, films, solid-state resins and other consumables. Additionally, ethylene glycol is used for manufacturing antifreeze fluids.
Specifications
| Parameter | Value | Unit | Testing method |
| Ethylene glycol content, min. | % (m/m) | 99.9 | ASTM E 2409 |
| Diethylene glycol content, max. | % (m/m) | 0.05 | ASTM E 2409 |
| Water content, max. | % (m/m) | 0.10 | PN-ISO 760 |
| Color, max. | Hazen scale | 5 | ASTM D 1209 |
| Acidity as acetic acid, max. | % (m/m) | 0.001 | ASTM D 1613 |
| Aldehyde content calculated as acetaldehyde, max. | mg/kg | 20 | ASTM E 2313 |
| Iron content, max. | μg/g | 0.2 | ASTM E 1615 |
| Chloride content (Cl-), max. | % (m/m) | 0.000025 | ORLEN Laboratory nr. 136 |
| Transmission under UV light, min. for individual wavelengths: 220 nm 250 nm 275 nm 350 nm |
% % % % |
70 90 94 98 |
ASTM D 482 |
| Ash content, max. | % (m/m) | 0.001 | ASTM E 2193 |
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Karolina Mazurowska
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