LibGuides: Find STEM Data Sources: Data Sources

Open or Free Data Sources

Data.gov
The home of the U.S. Government’s open data.
UNdata
Data collected by the United Nations.
Pollution Prevention (P2) Data
Data from the EPA's Toxics Release Inventory (TRI) Pollution Prevention (P2) program.
NASA Space Science Data Coordinated Archive
NASA's archive for space science mission data.
OSTI Data Explorer
US Dept of Energy Office of Scientific and Technical Information data collections.
DataONE Data Catalog
DataONE contains about 298k datasets. DataONE is a collaboration among many partner organizations, and is funded by the US National Science Foundation (NSF).

Data Respositories List
Open Access Directory listing data repositories across a range of subjects.

Google Public Data Explorer
Google explorer for publicly searchable data sets. Also has some visualization tools.
DSC List of Public Data Sets
Data Science Central list of data sets.

DIPPR Physical and Thermodynamic Properties
Most current edition. 6 users. Contact the Chemistry Librarian to obtain login credentials.

Updated regularly. Consists of experimental data and correlations of temperature-dependent properties for over 1,600 pure chemicals. Collected data have been evaluated, correlated, and checked for thermodynamic consistency. Use this resource to view data sets, DIPPR-approved property constants, and regressed correlation coefficients for temperature-dependent properties, and to calculate temperature-dependent properties in any set of units. Searchable by chemical name, CAS registry number, empirical and structural formulas, and numeric property ranges.
Access to this resource is funded by the Department of Chemical Engineering.