C-H-N-O, Hydrate, Temperature for congruent melting

• C-Cu-H-N-O
• C-H-N-Na-O
• C-Co-H-N-O
• C-H-K-N-O
• pnictogen
• hydrate
• chalcogen
• organic
• monoclinic
• triclinic
• orthorhombic
• hexagonal
• cubic