Praseodymium(III) oxide

• Dipraseodymtrioxid
• Praseodymsesquioxid

Yellow -green powder

Fixed

6.9 g · cm -3

2183 ° C

3760 ° C

Insoluble in water

Attention

> 5000 mg · kg -1 ( LD50, rat, oral)

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Praseodymium (III ) oxide is a chemical compound selected from the group of the oxides.

Production and representation

Praseodymium (III) -oxide can be obtained as well as praseodymium ( IV) oxide by reaction of Pro2 praseodymium with oxygen.

It can be obtained with hydrazine or dehydrogenation of praseodymium (III ) hydroxide by reduction of the black praseodymium (III, IV ) oxide, Pr6O11.

Properties

Praseodymium (III ) oxide is a yellow powder which is insoluble in water. It happens both in a white hexagonal shape and in a yellow to green cubic crystal structure. Under moist conditions, it reacts quickly to praseodymium (III ) hydroxide.

Use

Praseodymium (III ) oxide is used for the coloration of glass and ceramics. It is also being studied as a material for semiconductor devices.