Word: cresyl
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Dates: during 1940-1949
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...system called "liquid heat" which combines in one unit all the heat and power needed for house heating, cooking, refrigeration and lighting. The system, regarded by engineers as one of the most exciting heating discoveries in years, uses, instead of water or steam, a chemical solution called tetra-cresyl silicate, which can be heated to 817° Fahrenheit. The Foundation hopefully believes that its concentrated, economical liquid heat may save 48% of the present cost of house utilities...
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