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Propylene Glycol Inhibited

Propylene Glycol Inhibited

CAS Number: 57-55-6

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Propylene Glycol Inhibited is a high-performance heat transfer fluid formulated with propylene glycol and corrosion inhibitors to provide reliable freeze protection, boil-over protection, and system longevity. Unlike plain propylene glycol, the inhibited grade contains specialized additives that prevent corrosion, scaling, and fouling in both ferrous and non-ferrous metals. This makes it particularly effective in closed-loop heating, cooling, and refrigeration systems where system integrity and long service life are essential.

Due to its low toxicity and environmentally safer profile, propylene glycol inhibited is often used in applications where human or animal contact is possible, such as food processing facilities, beverage production, and HVAC systems in commercial buildings. It delivers excellent thermal stability, efficient heat transfer, and protection against microbial growth when properly maintained. Its balance of safety, performance, and corrosion resistance ensures dependable operation across a wide range of industries.

Synonyms: Inhibited propylene glycol, PG Inhibited, Corrosion-inhibited propylene glycol solution, Heat transfer fluid (PG-based).

Characteristics:
IUPAC Name: Propane-1,2-diol (base component)
CAS Number: 57-55-6 (for propylene glycol base)
UN Number: Not typically classified as hazardous (varies by concentration and additives)

Recommended Industries & Applications:

  • HVAC & Refrigeration: Heat transfer fluid in chillers, boilers, and air conditioning systems.
  • Food & Beverage Processing: Safe coolant for food-contact environments and beverage production.
  • Industrial Cooling Systems: Corrosion-resistant fluid for closed-loop cooling in chemical and manufacturing plants.
  • Renewable Energy & Solar: Heat transfer medium in solar thermal systems.
  • Pharmaceuticals & Biotechnology: Process cooling and temperature control in sensitive environments.

We do our best to keep product details and information accurate and up to date, but errors may occur. Always review the Safety Data Sheet (SDS) and confirm product suitability before use.

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