Dipropylene Glycol vs Propylene Glycol – Technical Comparison

Dipropylene Glycol vs Propylene Glycol – Technical Comparison 

Choosing the right glycol depends on how it performs under industrial conditions. Below is a structured comparison from a B2B perspective:

Physical Properties

PropertyPropylene Glycol (PG)Dipropylene Glycol (DPG)
ViscosityLowMedium
OdorSlightVery low
VolatilityHigherVery low
Molecular StructureSimpler diolMore complex diol blend
HygroscopicityHighModerate
Solvency PowerStrongControlled but stable

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