Dippr 801 [repack] May 2026

DIPPR stands for the , a membership consortium within the American Institute of Chemical Engineers (AIChE). The "801" refers to the specific project number that began in 1980: a sponsored effort to compile, evaluate, and recommend the most reliable thermophysical properties for industrially important chemicals.

For decades, engineers have sought a single, reliable source for these critical properties. Enter —the industry’s gold standard database for thermophysical properties of pure compounds. If you simulate a distillation column, size a pump, or design a reactor, chances are high that your work relies on DIPPR data. dippr 801

DIPPR 801: The Gold Standard Database for Physical Properties in Process Engineering DIPPR stands for the , a membership consortium

Imagine designing a heat exchanger for a new refrigerant. The heat transfer coefficient depends on liquid thermal conductivity and viscosity. Using a generic estimation method (like a group contribution model) might give errors of 10-20% in these properties. That error compounds into undersized or oversized equipment. The heat transfer coefficient depends on liquid thermal

But what exactly is DIPPR 801, where does it come from, and why do engineers trust it above all others?