Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
SRD Online Subscriptions
The following SRD are available for individual use, or as a subscription for your entire organization.
| Number | Title |
|---|---|
| SRD 3 | NIST INORGANIC CRYSTAL STRUCTURE DATABASE (ICSD) Materials discovery and development necessarily begins with the preparation and identification of product phase(s). Crystalline compounds can be identified by their characteristic diffraction patterns using X-rays, neutrons, and or electrons. An estimated 20,000 X-ray diffractometers and a comparable number of electron microscopes are used daily in materials research and development laboratories for this purpose. Access to crystal structure data is a critical step in solving research and applications problems in materials researches, and these data are of interest to analysts in areas such as materials design, property prediction and compound identification. Read More Individual 1 user Small Institution 2 to 10 users Large Institution unlimited users |
| SRD 202 | NIST/TRC Web Thermo Tables (WTT) - Lite This web application provides access to a collection of critically evaluated thermodynamic property data for pure compounds with a primary focus on organics. These data were generated through dynamic data analysis, as implemented in the NIST ThermoData Engine software package. As of November, 2010, WTT - Lite Edition contains information on 150 commonly-used compounds and access to a total of 86407 evaluated experimental data points. Read More NIST Web Thermo Tables, Version Lite - Small Institution (2 to 500 users) NIST Web Thermo Tables, Version Lite - Medium Institution (501 to 2000 users) NIST Web Thermo Tables, Version Lite - Large Institution (2001+ users) |
| SRD 203 | NIST/TRC Web Thermo Tables (WTT) - Professional Edition WTT - Professional Edition contains information on 23399 compounds and access to a total of 512538 evaluated experimental data points. This product also provides critically evaluated data for some non-molecular species such as radicals and organic salts carried from the TRC Thermodynamic Tables published from 1942-2009. Read More NIST Web Thermo Tables, Version Professional - Small Institution (2 to 500 users) NIST Web Thermo Tables, Version Professional - Medium Institution (501 to 2000 users) NIST Web Thermo Tables, Version Professional - Large Institution (2001+ users) |
Created March 11, 2011, Updated March 25, 2025