Praseodymium arsenide

Praseodymium arsenide is a binary inorganic compound of praseodymium and arsenic with the formula PrAs.

Preparation

Praseodymium arsenide can be prepared by heating praseodymium and arsenic:

$𝖯𝗋\mathsf{+}𝖠𝗌\stackrel{T}{\to }𝖯𝗋𝖠𝗌$

Physical properties

Praseodymium arsenide forms cubic crystals, space group F m3m, cell parameters a = 0.6009 nm, Z = 4, and structure like sodium chloride. When heated, it decomposes into arsenic and Pr₄As₃. At a pressure of 27 GPa, a phase transition to the tetragonal crystal system occurs.

See also

• Praseodymium antimonide
• Praseodymium bismuthide