IAPWS logo

Release on the Static Dielectric Constant of Ordinary Water Substance for Temperatures from 238 K to 873 K and Pressures up to 1000 MPa
September 1997

PDF of document

This formulation is recommended for the calculation of the static dielectric constant of ordinary water as a function of temperature and density up to 873 K and 1000 MPa. It is valid in the stable fluid range up to these limits, and also provides estimates for the supercooled liquid down to 238 K.

Revision History

This Release is the product of the Working Group "Thermophysical Properties of Water and Steam" (TPWS) of the International Association for the Properties of Water and Steam (IAPWS).

This page updated September 21, 2016

iapws.org >> releases, guidelines, etc. >> Release on Static Dielectric Constant