UNITED STATES DEPARTMENT OF COMMERCE

Alexander B. Trowbridge, Secretary

NATIONAL BUREAU OF STANDARDS A. V. Astin, Director

NBS TECHNICAL NOTE 270-3

ISSUED JANUARY 1968

Selected Values of Chemical Thermodynamic Properties

Tables for the First Thirty-Four Elements

in the Standard Order of Arrangement

D. D. Wagman, W. H. Evans, V. B. Parker,
I. Halow, S. M. Baily, and R. H. Schumm

Institute for Basic Standards
National Bureau of Standards
Washington, D.C. 20234

[This Technical Note supersedes Technical Notes 270-1 and 270-2]

NBS Technical Notes are designed to supplement the
Bureau's regular publications program. They provide a
means for making available scientific data that are of
transient or limited interest. Technical Notes may be
listed or referred to in the open literature.

For sale by the Superintendent of Documents, U.S. Government Printing Office Washington, D.C., 20402 Price $1.25

Technical Note 270-3 is the third in a series of publications containing material prepared as a revision of the tables of Series I

of National Bureau of Standards Circular 500, Selected Values of

Chemical Thermodynamic Properties, by F. D. Rossini, D. D. Wagman, W. H. Evans, S. Levine, and I. Jaffe. This Note extends the revision to Tables 23, 33, and 34, covering the compounds

of the elements carbon, zinc, and cadmium in the Standard Order of Arrangement. In addition this Note contains all of the Tables of Technical Note 270-1 and 270-2, including corrections for a number of minor errors. Thus this Note supersedes Technical Notes

270-1 and 270-2.

III

Donald D. Wagman, Chief,
Thermochemistry Section.