Alkali, Chalcogen, Disordered, Orthorhombic, Phase transitions

• H-Li-N-O-S
• H-K-O-P
• K-Na-Nb-O
• Na-O-V
• K-Li-O-S
• fusion
• temperature for congruent melting
• structural transitions
• temperature for structural transition
• decomposition
• alkali
• chalcogen
• disordered
• transitional