FIELD: production of europium hepta tantalate of class of complex rare-earth elements for manufacture of quantum electronics materials.
SUBSTANCE: proposed method includes mixing tantalum compounds with aqueous solution of europium salt followed by heat treatment of suspension thus obtained. Used as tantalum compound is tantalum hydroxide and europium acetate solution is used as aqueous solution of europium salt at europium concentration of 0.58-0.060 mole/l; heat treatment of product is carried out at temperature of 850-900C for 4-5 h.
EFFECT: reduction of synthesis temperature and duration of process.
1 tbl, 1 ex
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