If your institution lacks a license, the idea of a becomes a dead end. But do not despair. The open-source chemistry community has built competitive databases.
Liquid density, vapor pressure, heat capacity, and viscosity.
DECHEMA Gesellschaft für Chemische Technik und Biotechnologie e.V. Educational Version : AIChE provides a limited educational version containing 100 compounds free of charge specifically for students. Institutional Access Dippr 801 Database Free Download
Molecular weight, critical temperature, critical pressure, and acentric factor.
However, I need to be clear: . It is a copyrighted, commercially licensed database maintained by AIChE’s DIPPR (Design Institute for Physical Properties) and distributed by organizations like NIST (as part of the NIST TDE) or via commercial process simulators. If your institution lacks a license, the idea
Unlike generic internet data or unverified MSDS sheets, DIPPR 801 offers for 45 distinct properties, including:
A limited Public Database is sometimes available for searching basic chemical properties, but it does not allow for a full "bulk" download of the raw data. Liquid density, vapor pressure, heat capacity, and viscosity
If you are looking for free thermophysical data, tools like the NBS/NIST Steam Tables or the Dortmund Data Bank (DDB) Free Version offer similar data, though they are not as specialized as DIPPR 801. Why You Should Avoid Unofficial Downloads
Do not waste hours searching for a “secret” free link. The reality is that high-quality chemical data requires funding. By using the open-source alternatives or the official student access, you stay safe, legal, and scientifically accurate.