Water-activated exothermic chemical formulations

Details Water-activated exothermic chemical formulations Water-activated exothermic chemical formulations

1982-04-12

1984-01-10

Schilling, Richard L.

Compositions

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

562607, 423430, 423635, 126263, 122 21, C09K 318

Patent

active

044252510

ABSTRACT:
Intimately mixed dry chemical formulations consisting of (1) a stable acid-acetate salt and (2) a chemical base for use as water-activated exothermic deicing agents, and/or as the dry chemical components of a warming device. The salt is optionally calcium monoacid acetate, sodium diacetate, or calcium magnesium monoacid acetate wherein up to 7 mol percent of the metal is magnesium. The chemical base is optionally calcium oxide or hydroxide, magnesium oxide or hydroxide, or calcined limestone. The relatively non-polluting formulations are pelletized or otherwise aggregated for application to roads, highways, walkways and parking lots as deicers.

REFERENCES:
patent: 4057047 (1977-11-01), Gossett
patent: 4067313 (1978-01-01), Donnelly
patent: 4239736 (1980-12-01), Fenske

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