Alkali, Chalcogen, Monoclinic, Phase transitions

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