FIELD: heating equipment. SUBSTANCE: exothermic mixture comprises the following ingredients, % by weight: potassium nitrate 3- 10; sodium carboxymethyl/ methyl cellulose or crude lignosulfonate 3-10 and coal for the balance. Alternatively, the mixture may include glycerol 1-3 and potassium perchlorate 2-5. The exothermic mixture is prepared by conventional methods. EFFECT: improved quality. 2 tbl
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Authors
Dates
1994-11-15—Published
1991-05-17—Filed