High temperature interactions between glass-ceramic sealants and terrific interconnects used in solid oxide fuel cells (SOFCs) lead to the formation of detrimental chromate phases, such as BaCrO4 or SrCrO4, which lead to the mechanical failure of the cell. In present work, the interactions are characterized using model reactions between Cr2O3 and glass powders. It is found that the addition of MnO2 reduces the formation of SrCrO4 more significantly than that of ZnO and La2O3, in the SOFCs operational temperature range (e.g., 900 degrees C). In addition, the mechanism of the reduction of the chromate phase by different additives is discussed in terms of the possible competing reactions. (C) 2010 Elsevier BM. All rights reserved.