Palladium(II) nitrate

Palladium(II) nitrate is the inorganic compound with the formula Pd(NO₃)₂.(H₂O)_x where x = 0 or 2. The anhydrous and dihydrate are deliquescent solids. According to X-ray crystallography, both compounds feature square planar Pd(II) with unidentate nitrate ligands. The anhydrous compound, which is a coordination polymer, is yellow.^[1][2]

Palladium(II) nitrate

Names
IUPAC name Palladium(II) nitrate
Other names Palladium nitrate Palladous nitrate
Identifiers
CAS Number	10102-05-3 Y
3D model (JSmol)	Interactive image
ChemSpider	23306 Y
ECHA InfoCard	100.030.228
PubChem CID	24932
UNII	5G27LBZ05U N
CompTox Dashboard (EPA)	DTXSID60881413
InChI InChI=1S/2NO3.Pd/c2*2-1(3)4;/q2*-1;+2 Y Key: GPNDARIEYHPYAY-UHFFFAOYSA-N Y InChI=1/2NO3.Pd/c2*2-1(3)4;/q2*-1;+2 Key: GPNDARIEYHPYAY-UHFFFAOYAP
SMILES [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O
Properties
Chemical formula	Pd(NO3)2
Molar mass	230.43 g/mol
Appearance	yellow solid
Density	3.546 g/cm3[1]
Melting point	Decomposes >100 °C
Solubility in water	Soluble
Hazards
Occupational safety and health (OHS/OSH):
Main hazards	Irritant, possibility of allergic reaction
Flash point	Non-flammable
Related compounds
Other anions	Palladium(II) chloride
Other cations	Nickel(II) nitrate
Related compounds	Silver nitrate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa). N verify (what is YN ?) Infobox references

As a solution in nitric acid, Pd(NO₃)₂ catalyzes the conversion of alkenes to dinitrate esters. Its pyrolysis affords palladium oxide.^[3]

Preparation

Hydrated palladium nitrate may be prepared by dissolving palladium oxide hydrate in dilute nitric acid followed by crystallization. The nitrate crystallizes as yellow-brown deliquescent prisms. The anhydrous material is obtained by treating palladium metal with fuming nitric acid.^[1]