How is ethylene glycol graded based on acidity?
2026-02-27
Values outside these ranges may indicate quality issues.
Ethylene Glycol Grades can also be defined by acidity (calculated as acetic acid), which reflects acidic impurities:
High Grade: ≤ 0.001%
Ethylene Glycol Medium Grade: 0.001%–0.003%
Ethylene Glycol Low Grade: > 0.003% (may negatively impact downstream processes)
From a distillation range perspective (at 0°C, 101.3 kPa):
Ethylene Glycol Premium Grade: 196–199°C
First Grade: 195–200°C
Ethylene Glycol Qualified Grade: 194–201°C
A narrower distillation range indicates higher purity.
Ethylene Glycol Grades can also be defined by acidity (calculated as acetic acid), which reflects acidic impurities:
High Grade: ≤ 0.001%
Ethylene Glycol Medium Grade: 0.001%–0.003%
Ethylene Glycol Low Grade: > 0.003% (may negatively impact downstream processes)
From a distillation range perspective (at 0°C, 101.3 kPa):
Ethylene Glycol Premium Grade: 196–199°C
First Grade: 195–200°C
Ethylene Glycol Qualified Grade: 194–201°C
A narrower distillation range indicates higher purity.
Zibo Anhao Chemical Co., Ltd. is a professional manufacturer and supplier of high-quality ethylene glycol (EG), with rich experience in the chemical industry. Our ethylene glycol products are produced using advanced production processes and strict quality control systems, ensuring compliance with national standard GB/T 4649-2018 for premium, first-class, and qualified grades. With excellent properties such as low volatility, low corrosion, and complete miscibility with water and organic solvents, our EG is widely used in polyester fiber production, antifreeze solutions, solvents, and industrial chemical manufacturing.
Backed by our own production facilities and stable supply chain, we provide reliable, consistent products and customized solutions to global clients. As a trusted partner in the chemical sector, Zibo Anhao Chemical is committed to delivering top-tier ethylene glycol and supporting the sustainable development of our customers' businesses worldwide.
Backed by our own production facilities and stable supply chain, we provide reliable, consistent products and customized solutions to global clients. As a trusted partner in the chemical sector, Zibo Anhao Chemical is committed to delivering top-tier ethylene glycol and supporting the sustainable development of our customers' businesses worldwide.