Neodymium arsenate

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|ImageFile=neodymium arsenate.png

|ImageSize=

|IUPACName=

|OtherNames=Neodymium(III) arsenate

|Section1= {{Chembox Identifiers

| CASNo = 15479-84-2

| CASNo_Ref = {{cascite|correct|CAS}}

| PubChem =

| ChemSpiderID_Ref = {{chemspidercite|changed|chemspider}}

| ChemSpiderID =

| StdInChI = InChI=1S/AsH3O4.Nd/c2-1(3,4)5;/h(H3,2,3,4,5);/q;+3/p-3

| StdInChIKey = NDJXBXBULAKKIO-UHFFFAOYSA-K

| SMILES = [O-][As](=O)([O-])[O-].[Nd+3]

}}

|Section2= {{Chembox Properties

| Formula=NdAsO₄

| MolarMass=313.89

| Appearance= faint pink powder

| Density=5.3-5.9 g/cm³{{cite book |last1=Donnay |first1=Joseph Désiré Hubert |title=Crystal Data: Inorganic compounds |date=1973 |publisher=National Bureau of Standards |page=M71 |url=https://books.google.com/books?id=5lVCBwmZsLYC&pg=RA2-PA71 |language=en}}

| MeltingPt=

| BoilingPt=

| Solubility= insoluble

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|Section3= {{Chembox Hazards

| MainHazards=

| FlashPt=

| GHSPictograms = {{GHS06}}{{GHS08}}{{GHS09}}

| GHSSignalWord = Danger

| HPhrases = {{H-phrases|350|300|314|410}}

| PPhrases = {{P-phrases|201|264|273|280|305+351+338|310}}}}

| Section8 = {{Chembox Related

| OtherAnions = Neodymium(III) nitrate
Neodymium(III) phosphate
Neodymium(III) antimonate
Neodymium(III) bismuthate
Neodymium(III) carbonate

| OtherCations = PrAsO₄

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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 pK_sp,c is 21.86±0.11.{{cite journal|author1=Firsching, F. Henry. |title=Solubility products of the trivalent rare-earth arsenates|journal=Journal of Chemical and Engineering Data|year= 1992|volume= 37| issue=4|pages=497–499|doi=10.1021/je00008a028}}