Non-disordered, Quaternary, Tetraoxoselenate, Phase transitions

• H-N-O-Se
• H-O-Rb-Se
• Cs-H-O-Se
• K-Na-O-Se
• H-K-O-Se
• fusion
• temperature for congruent melting
• structural transitions
• temperature for structural transition
• decomposition temperature
• tetraoxoselenate
• chalcogen
• non-disordered
• quaternary
• monoclinic
• triclinic
• trigonal
• orthorhombic
• tetragonal