Palladium(II) nitrate

Palladium(II) nitrate
Names
IUPAC name
Palladium(II) nitrate
Other names
Palladium nitrate
Palladous nitrate
Identifiers
CAS Number
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.030.228
PubChem CID
UNII
CompTox Dashboard (EPA)
InChI
  • InChI=1S/2NO3.Pd/c2*2-1(3)4;/q2*-1;+2 checkY
    Key: GPNDARIEYHPYAY-UHFFFAOYSA-N checkY
  • 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
GHS labelling:[2]
Pictograms
 GHS03: OxidizingGHS05: CorrosiveGHS07: Exclamation markGHS09: Environmental hazard
Signal word
 Danger
Hazard statements
 H271, H272, H290, H302, H314, H410
Precautionary statements
 P210, P220, P234, P260, P264, P264+P265, P270, P273, P280, P283, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P306+P360, P316, P317, P321, P330, P363, P370+P378, P371+P380+P375, P390, P391, P405, P420, P501
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).
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Infobox references

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][3]

As a solution in nitric acid, Pd(NO3)2 catalyzes the conversion of alkenes to dinitrate esters. Its pyrolysis affords palladium oxide.[4]

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]

References

  1. ^ a b c Bruns, Jörn; Klüner, Thorsten; Wickleder, Mathias S. (2015). "Oxoanionic Noble Metal Compounds from Fuming Nitric Acid: The Palladium Examples Pd(NO3)2 and Pd(CH3SO3)2". Chemistry - A European Journal. 21 (3): 1294–1301. doi:10.1002/chem.201405355. PMID 25431333.
  2. ^ PubChem. "Palladium nitrate". pubchem.ncbi.nlm.nih.gov. Retrieved 2026-02-27.
  3. ^ Laligant, Y.; Ferey, G.; Le Bail, A. (1991). "Crystal Structure of Pd(NO3)2(H2O)2". Materials Research Bulletin. 26 (4): 269–275. doi:10.1016/0025-5408(91)90021-D.
  4. ^ Timothy T. Wenzel "Palladium(II) Nitrate" Encyclopedia of Reagents for Organic Synthesis 2001, John Wiley & Sons. doi:10.1002/047084289X.rp013


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