FIELD: metallurgy.
SUBSTANCE: ruthenium undergoes weighted deposition in the form of potassium hexanitroruthenate (II) from solutions containing ruthenium chloro, ammino, nitroso chloro, nitroso nitrate or nitroso nitro complexes in saturated potassium nitrite solution at the boiling point of reaction mix.
EFFECT: weighted extraction of ruthenium in the form of slightly soluble complex compound.
7 cl, 2 tbl, 7 ex
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