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.
Chemistry
Chemistry SRDs by Subtopic
Analytical and Chemical Data
| SRD 1A |
NIST/EPA/NIH Mass Spectral Library This database is the product of an ongoing comprehensive evaluation and expansion of the world's most widely used mass spectral reference library. Read More |
| SRD 69 |
NIST Chemistry WebBook The Chemistry WebBook provides internet access to a variety of physical and chemical property data on well-defined chemical species and reactions. Read More |
| SRD 73 | REFLEAK: NIST Leak/Recharge Simulation Program for Refrigerant Blends REFLEAK estimates composition changes of zeotropic mixtures in leak and recharge processes in industrial applications such as distillation, refrigeration, and cleaning processes. Read More |
| SRD 101 |
NIST Computational Chemistry Comparison and Benchmark Database This database contains experimental and computed (quantum mechanics) thermochemical data for a selected set of nearly 1,900 gas-phase atoms and small molecules. Read More |
| SRD 147 | NIST Ionic Liquids Database - ILThermo ILThermo is a database of chemical and physical properties of ionic liquids searchable by means of the ions constituting the ionic liquids, the ionic liquids themselves, their properties, and references. Read More |
| SRD 204 |
NIST Polycyclic Aromatic Hydrocarbon Structure Index This database provides the following information for hundreds of polycyclic aromatic hydrocarbon molecules: compound information, 3d models, thermochemistry, and UV-Vis spectra. Read More |
Biochemistry and Biotechnology
| SRD 1C |
NIST Peptide Tandem Mass Spectral Libraries NIST peptide libraries are comprehensive, annotated mass spectral reference collections for various organisms and proteins useful for the rapid matching and identification of acquired tandem mass spectrometry (MS/MS) spectra. Read More |
| SRD 74 |
Thermodynamics of Enzyme-Catalyzed Reactions Database This SRD contains thermodynamic data for enzyme-catalyzed reactions that are searchable via a novel rule and root based algorithmic method. Read More |
| SRD 165 |
NIST Semantics for Biological Data Resource: Cell Image Database This database contains results of controlled cell image experiments on A-10 rat smooth muscle and NIH-3T3 mouse fibroblasts. A novel rule- and root-based method is used to generate experimental metadata. Read More |
Chemical Kinetics
| SRD 40 |
NDRL/NIST Solution Kinetics Database on the Web This database enables determination of kinetics data on solution-phase reactions through a search form in which reactant(s), product(s), and/or solvent(s) are inputted. Read More |
Thermochemical Data
| SRD 10 | NIST/ASME Steam Properties Database The thermodynamic properties of water, based on international standards over a wide range of conditions, are presented in this database. Read More |
| SRD 13 |
NIST JANAF Thermochemical Tables This database provides tables of enthalpies (H) and Gibbs energies of formation (G) for more than 1,000 chemical species in solid, liquid, and gas phases. Changes in H and G can be predicted for any reactions among the chemical species. Read More |
| SRD 23 | NIST Reference Fluid Thermodynamic and Transport Properties Database REFPROP is an acronym for REFerence fluid PROPerties. This program calculates the thermodynamic and transport properties of industrially important fluids and their mixtures. Read More |
| SRD 69 |
NIST Chemistry WebBook The Chemistry WebBook provides internet access to a variety of physical and chemical property data on well-defined chemical species and reactions. Read More |
| SRD 103a |
NIST ThermoData Engine Database Version 2.5 - Pure Compounds The NIST/TRC SOURCE data archival system is used in conjunction with the ThermoData Engine as a comprehensive storage facility for experimental thermophysical and thermochemical property data for approximately 23,000 pure compounds. Read More |
| SRD 103b |
NIST ThermoData Engine Database Version 9.0 - Pure Compounds and Binary Mixtures The NIST/TRC SOURCE data archival system,is used in conjunction with the ThermoData Engine as a comprehensive storage facility for experimental thermophysical and thermochemical property data for pure compounds, binary and ternary mixtures, and chemical reactions. Read More |
| SRD 202 |
NIST/TRC Web Thermo Tables (WTT) - Lite Edition Web Thermo Tables - Lite provides access to a collection of thermodynamic property data for 150 commonly-used pure compounds with a primary focus on organics. Read More |
| SRD 203 | NIST/TRC Web Thermo Tables (WTT) - Professional Edition This database provides the following information for hundreds of polycyclic aromatic hydrocarbon molecules: compound information, 3d models, thermochemistry, and UV-Vis spectra. Read More |
Thermophysical Properties
| SRD 103a |
NIST ThermoData Engine Database Version 2.5 - Pure Compounds The NIST/TRC SOURCE data archival system is used in conjunction with the ThermoData Engine as a comprehensive storage facility for experimental thermophysical and thermochemical property data for approximately 23,000 pure compounds. Read More |
| SRD 103b |
NIST ThermoData Engine Database Version 9.0 - Pure Compounds and Binary Mixtures The NIST/TRC SOURCE data archival system, is used in conjunction with the ThermoData Engine as a comprehensive storage facility for experimental thermophysical and thermochemical property data for pure compounds, binary and ternary mixtures, and chemical reactions. Read More |
| SRD 106 |
IUPAC-NIST Solubility Database This data, extracted from the IUPAC–NIST Solubility Data Series, contains more than 67,500 entries of mutual solubilities and liquid-liquid equilibria of binary, ternary and quaternary systems. Read More |
| SRD 202 |
NIST/TRC Web Thermo Tables (WTT) - Lite Edition Web Thermo Tables - Lite provides access to a collection of thermodynamic property data for 150 commonly-used pure compounds with a primary focus on organics. Read More |
| SRD 203 |
NIST/TRC Web Thermo Tables (WTT) - Professional Edition Web Thermo Tables - Professional Edition contains thermodynamic data on 23399 compounds and includes some non-molecular species such as radicals and organic salts. Read More |
X-Ray Photoelectron and Auger Electron Analysis
| SRD 20 |
X-ray Photoelectron Spectroscopy Database This database contains over 22,000 line positions, chemical shifts, doublet splittings, and energy separations of photoelectron and Auger-electron spectral lines, and is searchable by element, line type, line energy, and many other variables. Read More |
| SRD 64 |
NIST Electron Elastic-Scattering Cross-Section Database This database provides values of differential elastic-scattering, total elastic-scattering, and transport cross-sections for elements with atomic numbers from 1 to 96 needed for quantitative analysis by Auger-electron spectroscopy, X-ray photoelectron spectroscopy, electron microprobe analysis, and analytical electron microscopy. Read More |
| SRD 71 |
NIST Electron Inelastic-Mean-Free-Path Database This database provides values of electron-inelastic mean free paths for elements, inorganic compounds, and organic compounds that are used in quantitative surface analyses by Auger-electron spectroscopy and X-ray photoelectron spectroscopy. Read More |
| SRD 82 |
NIST Electron Effective-Attenuation-Length Database This database provides values of electron-effective attenuation lengths in solid elements and compounds at selected electron energies for surface analysis by Auger-electron spectroscopy and X-ray photoelectron spectroscopy. Read More |
| SRD 100 |
NIST Database for the Simulation of Electron Spectra for Surface Analysis (SESSA) SESSA can be used to simulate Auger-electron spectroscopy and X-ray photoelectron spectroscopy spectra of multilayer thin films and nanostructures such as islands, lines, and spheres on surfaces. Read More |
| SRD 154 |
NIST Backscattering-Correction-Factor Database for Auger Electron Spectroscopy This database contains values of backscattering correction factors of homogeneous materials for quantitative surface analyses by Auger electron spectroscopy. |
| SRD 164 |
NIST Database of Cross Sections for Inner-Shell Ionization by Electron or Positron Impact This database provides cross-sections for ionization of the K shell and of the L and M sub-shells in neutral atoms of the elements, from hydrogen to einsteinium, by electron and positron impact. Read More |