Hydrated calcium bromide reversible phase change composition

Details Hydrated calcium bromide reversible phase change composition Hydrated calcium bromide reversible phase change composition

1986-08-08

1987-09-01

Wax, Robert A.

Compositions

Frost-preventing, ice-thawing, thermostatic, thermophoric,...

16510417, 165902, C09K 506

Patent

active

046907696

ABSTRACT:
A reversible liquid/solid phase change composition comprising a eutectic composition of CaBr.sub.2 .multidot.6H.sub.2 O and CaBr.sub.2 .multidot.4H.sub.2 O, having more than 5.4 but less than 6.0 moles of H.sub.2 O per mole of CaBr.sub.2. The composition optionally includes additives selected from KBr and NaBr to lower the melting point of the composition. The composition optionally also includes a nucleating agent selected from Ba and Sr salts to reduce supercooling of the composition to 5.degree. C. or less.

REFERENCES:
patent: 4613444 (1986-09-01), Lane et al.
patent: 4637888 (1987-01-01), Lane et al.
Linke, Solubilities of Inorganic and Metal-Organic Compounds, vol. I, 4th ed., 1958, p. 503.

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