Propylene glycol (PG)
Propylene glycol (PG) is a colorless, odorless, viscous, and non-toxic organic compound. It is widely used across various industrial applications, including cooling systems, heat transfer fluids, antifreeze, and in the production of chemicals and pharmaceuticals. PG is a less toxic alternative to ethylene glycol-based fluids and is often preferred in food- and health-related environments.
Features and Benefits of Propylene Glycol (PG):
- Safety and low toxicity: PG is non-toxic, making it ideal for sensitive applications such as food, pharmaceutical, and cosmetic systems. It is considered safe in case of accidental skin contact or ingestion in small amounts.
- Freezing point depression: Like ethylene glycol, PG effectively lowers the freezing point of fluids, providing freeze protection in cooling and antifreeze systems.
- Boiling point elevation: PG raises the boiling point of water-based fluids.
- Versatility: Widely used across industries, from industrial cooling systems to cosmetics, pharmaceuticals, and food & beverage manufacturing.
Key applications for Propylene Glycol (PG): Propylene glycol is highly versatile and is used across a wide range of sectors, including the chemical, food, pharmaceutical, and heat transfer fluid industries. Here are some of its main applications:
- Antifreeze and coolants: Commonly used in antifreeze formulations for automotive cooling, industrial equipment, and heating circuits due to its freeze and heat protection properties.
- Food & pharmaceutical industry: Used as a solvent, humectant, and stabilizer in the production of food, cosmetics, and medicines (e.g., flavors, colorants, creams, and lotions).
- Chemicals and solvents: Excellent solvent for paints, inks, and cleaning products.
- Textiles & industrial applications: Applied in textile production, emulsions, and adhesives.
- Electronics: Used in electrolytes for capacitors, batteries, and other components.
Thanks to its low toxicity, chemical stability, and compatibility, propylene glycol is a highly versatile heat transfer fluid, offering both safety and efficiency. It is considered a reliable and high-performing alternative to ethylene glycol across industrial, pharmaceutical, and food applications.
Propylene glycol (PG) is a high-performance, reliable, and safer alternative to ethylene glycol in many industrial, pharmaceutical, and food applications.