4, Chalcogen, Pnictogen, Quaternary, Phase transitions

• Cs-H-O-P
• C-H-N-O
• H-K-O-P
• K-O-P-W
• Co-H-N-O
• temperature for congruent melting
• fusion
• structural transitions
• temperature for structural transition
• decomposition temperature
• pnictogen
• chalcogen
• quaternary
• non-disordered
• monoclinic