Inhibited Propylene Glycol (PG) is typically available in industrial and USP grades. Common sizes include 55-gallon drums, 275-gallon totes, and bulk tankers. The viscosity of PG at 25°C is approximately 56 cP. Its density ranges from 1.036 g/cm³ at 20°C, providing slight buoyancy in water. It is a synthetic organic compound (C3H8O2) with a freezing point of -59°C and a boiling point of 188°C. Inhibited PG contains additives to prevent corrosion and degradation.
Ethylene Glycol (EG) is available in industrial, automotive, and USP grades. Common packaging includes 55-gallon drums and bulk shipments. EG has a viscosity of 16.9 cP at 25°C and a density of 1.113 g/cm³ at 20°C, making it denser than water. It is a clear, viscous liquid (C2H6O2) with a freezing point of -12.9°C and a boiling point of 197.3°C. Inhibited EG contains anti-corrosion additives.
Diethylene Glycol (DEG) is supplied in industrial and reagent grades. Packaging includes 55-gallon drums and bulk containers. DEG has a viscosity of 35.7 cP at 20°C and a density of 1.118 g/cm³ at 20°C. It is a hygroscopic liquid (C4H10O3) with a freezing point of -10°C and a boiling point of 245°C. Inhibited DEG may include stabilizers for extended shelf life.
Triethylene Glycol (TEG) is commonly available in industrial and technical grades. It is packaged in drums, totes, and bulk. TEG has a viscosity of 49 cP at 20°C and a density of 1.125 g/cm³ at 20°C. It is a high-boiling-point liquid (C6H14O4) with a freezing point of -7°C and a boiling point of 288°C. Inhibited TEG is used in applications requiring moisture absorption and corrosion resistance.
