Low Toxicity Antifreeze in Ross Dependency, Changing Impeller On Inboard - Glycols

Low toxicity antifreeze glycols are environmentally friendly alternatives to traditional antifreeze, often made from propylene glycol instead of ethylene glycol. They provide effective freeze and boil-over protection while being safer for humans, animals, and plants. These glycols are commonly used in automotive, HVAC, and food processing applications where reduced toxicity is essential.

Size: Typically available in 1-gallon, 5-gallon, and 55-gallon containers.

Grade: Industrial or automotive grade, meeting ASTM D3306 or ASTM D4985 standards.

Viscosity: Approximately 5-6 cP at 25°C (77°F), varies with glycol concentration.

Buoyancy: Slightly denser than water (1.05-1.12 g/cm³ depending on glycol-water ratio).

Material: Ethylene glycol (EG) or propylene glycol (PG) based, with corrosion inhibitors.

Freezing Point: -34°C to -50°C (-29°F to -58°F) at 50-60% glycol concentration.

Boiling Point: 106-110°C (223-230°F) for 50% glycol-water mix under atmospheric pressure.

pH Level: 7.5-10.5 (buffered to prevent corrosion).

Flash Point: 111-116°C (232-240°F) for propylene glycol, lower for ethylene glycol.

Thermal Conductivity: ~0.34 W/m·K at 20°C (68°F) for 50% glycol-water mix.