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Free Data from the DDB

DDBST has published a free Explorer Edition of its software and the Dortmund Data Bank. This DDB Explorer Edition is a stripped down – but still useful and completely free – basic version of the DDB and the DDB software package.

The Explorer Edition contains data for 30 components and for the mixtures that can be build from these components. DDBST has decided to publish the experimental data from the Explorer Edition directly on the Internet.

Currently data from seven data banks are already available. Selecting a data bank will produce a list of components and systems with links to the data further down on this page.

Databank	Sets	Points	Sources	Systems	Percentage^*
Vapor-Liquid Equilibria	795	15696	493	363	2.67 %
Activity Coefficients at Infinite Dilution (Binary Systems)	509	509	125	190	0.91 %
Azeotropic Data	857	857	480	354	1.67 %
Solid-Liquid Equilibria for Systems Without Electrolytes	242	3168	119	133	0.77 %
Excess Enthalpies	574	10031	276	254	2.96 %
(Excess) Heat Capacities	125	1639	62	61	3.98 %
Excess Volumina and Densities of Mixtures	563	8466	275	255	1.42 %
Sum	3665	40366	1830	550	0.99 %

^* number of data sets compared to complete the Dortmund Data Bank

In total, there are data for 550 systems available. Compared to the more than 100.000 systems in the Dortmund Dabank this is only a very small fraction (0.55 %).

For most binary systems at least a single diagram with the standard representation of the property is available.