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Title: Low-melting point inorganic nitrate salt heat transfer fluid

Patent ·
OSTI ID:988820
 [1];  [2]
  1. Livermore, CA
  2. Albuquerque, NM
+ Show Author Affiliations

A low-melting point, heat transfer fluid made of a mixture of four inorganic nitrate salts: 9-18 wt % NaNO.sub.3, 40-52 wt % KNO.sub.3, 13-21 wt % LiNO.sub.3, and 20-27 wt % Ca(NO.sub.3).sub.2. These compositions can have liquidus temperatures less than 100 C; thermal stability limits greater than 500 C; and viscosity in the range of 5-6 cP at 300 C; and 2-3 cP at 400 C.

Research Organization:
Sandia National Laboratories (SNL), Albuquerque, NM, and Livermore, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC04-94AL85000
Assignee:
Sandia Corporation (Albuquerque, NM)
Patent Number(s):
7,588,694
Application Number:
12/120,257
OSTI ID:
988820
Country of Publication:
United States
Language:
English

References (2)

Chemical Equilibria of Molten Ternary Nitrate Salt Mixtures report May 1989
Chemical and Engineering Factors Affecting Solar Central Receiver Applications of Ternary Molten Salts report July 1988

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Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY