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EFFECT OF MASS TRANSFER OF SYSTEMS Mn(Fe,Co)Mo(W)O4–Na2CO3 AND ENVIRONMENT AND NEED FOR HIS ACCOUNT WHEN IDENTIFYING MOLYBDATES AND TUNGSTATES OF MULTIVALENT d-ELEMENTS, Mn, Fe, Co, ON BASIS OF THERMOGRAVIMETRIC DATA
2019
IZVESTIYA VYSSHIKH UCHEBNYKH ZAVEDENIY KHIMIYA KHIMICHESKAYA TEKHNOLOGIYA
The paper presents the experimental and calculated data for study of exchange reactions in the systems Mn(Fe,Co)Mo(W)O4–Na2CO3 with methods of thermodynamics, thermogravimetry, kinetics topochemically reactions and stoichiometry, analysis and synthesis which led to the identification of the effect of mass transfer between the system and the environment – a phenomenon characteristic of molybdates (tungstates) polyvalent d-elements (Mn,Fe,Co) in contrast to similar derivatives of d-elements (Ni,
doi:10.6060/ivkkt.20196204.5761
fatcat:5j7o5uodx5ef3de5hpudtx3qdu