What is the difference between propylene glycol and ethylene glycol for Oman industrial use?

Question

Accepted Answer

Propylene glycol (PG, 1,2-propanediol, CAS 57-55-6) and ethylene glycol (MEG, 1,2-ethanediol) are both diols widely used as antifreeze, coolants, and industrial solvents, but differ critically in toxicity. Ethylene glycol is toxic (LD50 4,700 mg/kg in rats), metabolised to oxalic acid which causes kidney failure; propylene glycol is Generally Recognised As Safe (GRAS) by the FDA for use in food, cosmetics, and pharmaceuticals. This toxicity difference makes propylene glycol the mandatory choice for food processing refrigeration systems, brewery chilling loops, pharmaceutical manufacturing coolants, and any application where human contact is possible. In performance, both provide similar freeze protection and boiling point elevation at equivalent concentrations, but PG is slightly more viscous than MEG, requiring higher pump power in cold conditions. Cost: propylene glycol is typically 30–60% more expensive than MEG. For Oman industrial applications with no food contact risk (HVAC, process cooling, oilfield), MEG remains the standard. Global Chemicals LLC supplies both grades with documentation for food and industrial applications.

بروبيلين جليكول (USP/صناعي)

Product Overview

Detailed Description

Also Known As:

Applications & Uses

Technical Specifications

Frequently Asked Questions — بروبيلين جليكول (USP/صناعي)

Request a Quote

Related Products

MEG (أحادي إيثيلين جليكول)

TEG (ثلاثي إيثيلين جليكول)