Palladium(II) sulfate

Palladium(II) sulfate
Names
Other names
  • Palladous sulfate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.033.583 Edit this at Wikidata
EC Number
  • 236-957-8
  • InChI=1S/H2O4S.Pd/c1-5(2,3)4;/h(H2,1,2,3,4);/q;+2/p-2
    Key: RFLFDJSIZCCYIP-UHFFFAOYSA-L
  • [Pd+2].S(=O)(=O)([O-])[O-]
Properties
PdSO4
Molar mass 202.48 g/mol
Appearance Red-brown solid (anhydrous)
Density 4.2 g/cm3
Melting point 525 °C (977 °F; 798 K) (decomposition)
Hydrolysis
Solubility Soluble in conc. sulfuric acid
Structure
Monoclinic
C2/c
a = 7.84 Å, b = 5.18 Å, c = 7.91 Å
α = 90°, β = 95.6°, γ = 90°
Thermochemistry
97.5 J/(mol·K)
−672.4 kJ/mol
Hazards
GHS labelling:
GHS05: CorrosiveGHS07: Exclamation mark
Danger
H302, H314
P260, P264, P270, P280, P301+P317, P301+P330+P331, P302+P361+P354, P304+P340, P305+P354+P338, P316, P321, P330, P363, P405, P501
Related compounds
Other cations
 Nickel(II) sulfate
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).

Palladium(II) sulfate is an inorganic chemical compound with the formula PdSO4. It is a hygroscopic red-brown solid that forms the dihydrate, PdSO4·2H2O.

Preparation and properties

Palladium(II) sulfate is produced by the reaction of palladium metal with a mixture of nitric acid and sulfuric acid. It can also be produced by the reaction of palladium(II) sulfide and oxygen in dimethylformamide.

When anhydrous palladium(II) sulfate absorbs moisture from the air, it forms a greenish-brown dihydrate. The anhydrous form can be regenerated by the heating of the dihydrate at 202 °C.

Anhydrous palladium(II) sulfate decomposes to palladium(II) oxide at 525 °C releasing sulfur trioxide:

PdSO4 → PdO + SO3

References

  1. 1 2 3 4 5 6 7 Thomas Dahmen; Pia Rittner; Silke Böger-Seidl; Reginald Gruehn (1994). "Beiträge zum thermischen Verhalten von Sulfaten XIV. Zum thermischen Verhalten von PdSO4 · 2H2O und PdSO4 · 0.75H2O sowie zur Struktur von M-PdSO4" [Contributions to the thermal behavior of sulfates XIV. On the thermal behavior of PdSO4 · 2H2O and PdSO4 · 0.75H2O as well as the structure of M-PdSO4]. Journal of Alloys and Compounds (in German). 216 (1): 11–19. doi:10.1016/0925-8388(94)91034-0.
  2. 1 2 Georg Brauer: Handbuch der präparativen anorganischen Chemie. 3., umgearb. Auflage. Band III. Enke, Stuttgart 1981, ISBN 3-432-87823-0, p. 1731
  3. ↑ Turki Alkathiri; Kai Xu; Bao Yue Zhang; Muhammad Waqas Khan; Azmira Jannat; Nitu Syed; Ahmed F. M. Almutairi; Nam Ha; Manal M. Y. A. Alsaif; Naresha Pillai; Zhong Li; Torben Daeneke; Jian Zhen Ou (2022). "2D Palladium Sulphate for Visible-Light-Driven Optoelectronic Reversible Gas Sensing at Room Temperature". Small Science. 2 (3). doi:10.1002/smsc.202100097. PMC 11935894.
  4. 1 2 R. Eskenazi; J. Raskovan; R. Levitus (1966). "Sulphato complexes of palladium (II)". Journal of Inorganic and Nuclear Chemistry. 28 (2): 521–526. doi:10.1016/0022-1902(66)80333-0.
  5. ↑ W. Manchot; A. Waldmüller (1926). "Zur Kenntnis der Metall-Nitroso-Verbindungen: Über Stickoxyd-Verbindungen des Palladiums" [For knowledge of metal-nitroso compounds: About nitrogen oxide compounds of palladium]. Berichte der Deutschen Chemischen Gesellschaft (in German). 59 (9): 2363–2366. doi:10.1002/cber.19260590931.