FIELD: chemistry.
SUBSTANCE: invention relates to a refractory composition for making casting moulds. The composition contains (a) at least 85 pts.wt refractory material, (b) 0.5-10 pts.wt binder and (c) manganese cyclopentadienyl tricarbonyl, a derivative thereof, in amount of about 0.0005 pts.wt to about 4 pts.wt, where the parts by weight are given with respect to 100 pts.wt of the refractory composition. Also disclosed are methods of making a casting mould and a method of moulding metal parts.
EFFECT: invention enables to make casting moulds with improved exothermic properties.
13 cl, 4 tbl, 2 ex
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