Bulk Density Chart
Densities in standard and metric form, grouped by first letter of the product.
Dielectric Constant Reference Guide
Single page of several hundred chemicals, sorted by name, with associated dielectric constant.
Fundamental Physical Constants from NIST
The values of the fundamental physical constants provided at this site are recommended for international use by CODATA and are the latest available.
National Institute of Standards and Technology WebBook
Thermochemical data for over 6000 organic and small inorganic compounds. Reaction thermochemistry data for over 9000 reactions. IR spectra for over 8700 compounds. Mass spectra for…
NIST Physical Reference Data
Database holding information on fundamental physical constants, atomic spectra, molecular spectroscopic data, ionization data, X-Ray and Gamma-Ray data, radiation dosimetry data, n…
Quantum Chemistry Literature DataBase
A literature database on ab initio MO calculations published in major journals of Chemistry, Physics and Computer Science since 1978.
Quest Consultants
Source of thermodynamic data useful in handling phase transitions. The data are given as a function of temperature and pressure for single components and mixtures. Also links to B…
Surface Tension Data
Surface tension values of some common test liquids for surface energy analysis.
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