Dippr — Database

Or for vapor pressure, a specialized Antoine/Cox-type equation:

[ Y = A + B \cdot T + C \cdot T^2 + D \cdot T^3 + E \cdot T^4 ] dippr database

In the fields of chemical engineering, process simulation, and industrial R&D, the reliability of a model is only as good as the data that feeds it. While equations of state and predictive group contribution methods (e.g., UNIFAC) are useful, nothing replaces rigorously evaluated, experimentally anchored data. This is where the DIPPR Database —specifically DIPPR 801 —establishes itself as the industry gold standard. What is DIPPR? DIPPR stands for the Design Institute for Physical Property Research , a project initiated by the American Institute of Chemical Engineers (AIChE). Founded in 1980, DIPPR was created to solve a chronic industry problem: scattered, inconsistent, or missing thermophysical property data for pure chemicals. What is DIPPR

[ \ln(P) = A + \fracBT + C \cdot \ln(T) + D \cdot T^E ] [ \ln(P) = A + \fracBT + C \cdot \ln(T) + D \cdot T^E ]