Alkali, Phase transitions

• H-K-O-P
• H-Li-N-O-S
• Na-Nb-O
• K-Na-Nb-O
• C-K
• fusion
• temperature for congruent melting
• phase diagram
• structural transitions
• alkali
• chalcogen
• cell and atoms
• transitional
• non-disordered
• monoclinic
• orthorhombic
• cubic
• tetragonal
• trigonal