: Be cautious with requests for "free downloads." Many databases, including the DIPPR database, are proprietary and require a subscription or a one-time purchase. Look for open-access journals or databases that legally offer free downloads.
AIChE offers a of DIPPR for students (upon request). dippr database free download
Here is everything you need to know about what the DIPPR database is, why it’s valuable, and how you can legally access it without breaking the bank. What is the DIPPR Database? : Be cautious with requests for "free downloads
For users unable to purchase a license, the following legitimate avenues exist: including the DIPPR database