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Neodymium arsenate

Chemical compound From Wikipedia, the free encyclopedia

Neodymium arsenate
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Neodymium arsenate, also known as neodymium(III) arsenate, is the arsenate of neodymium with the chemical formula of NdAsO4. In this compound, neodymium exhibits the +3 oxidation state. It has good thermal stability, and its pKsp,c is 21.86±0.11.[2]

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Preparation

Neodymium arsenate can be obtained from the reaction between sodium arsenate (Na3AsO4) and neodymium chloride (NdCl3) in solution:[3]

Na3AsO4 + NdCl3 → 3 NaCl + NdAsO4

When crystallizing from a lead pyroarsenate flux, neodymium arsenate crystals produced explode when cooled.[4]

Neodymium arsenate also occurs in nature as a mineral, Arsenoflorencite-(Nd).[5][6]

See also

References

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