NAVIGATION


Palladium chloride

Catalog Number
ACM7647101-1
CAS Number
7647-10-1
Product Name
Palladium chloride
Structure
Category
Salt
Description
Palladium chloride appears as dark brown crystals. (NTP, 1992)
IUPAC Name
dichloropalladium
Molecular Weight
177.3g/mol
Molecular Formula
PdCl2;Cl2Pd
Canonical SMILES
Cl[Pd]Cl
InChI
InChI=1S/2ClH.Pd/h2*1H;/q;;+2/p-2
InChI Key
PIBWKRNGBLPSSY-UHFFFAOYSA-L
Melting Point
934 °F (DECOMP) (NTP, 1992);678-680 °C
Density
4 at 64 °F (NTP, 1992);4.0 g/cu cm
Solubility
Soluble (NTP, 1992);Sol in water, ethanol, acetone;Readily soluble in hydrochloric acid and solutions of alkali metal chlorides
Application
Palladium chloride serves multiple purposes primarily due to its role as a catalyst in various chemical reactions. Its versatility is evident as it is employed in the synthesis of semiconducting metal-containing polymers, electroplating, and the preparation of palladium catalysts. It is integral to the automotive and petrochemical industries, where palladium and its alloys significantly enhance catalytic processes. Additionally, palladium chloride is used as a reagent in analytical chemistry for determining trace amounts of elements like palladium, mercury, and thallium. Its utility extends to practical applications, such as testing for carbon monoxide using palladium chloride-soaked strips, and in photography for toning and producing porcelain pictures. The compound's ability to form complex ions, like the tetrachloropalladate ion, further broadens its application in organic synthesis, including the Wacker Process for oxidizing ethylene to acetaldehyde. Palladium chloride's chemical behavior allows for the detection of gases and other substances by decolorization, making it indispensable in various industrial and scientific contexts.
Color/Form
Red rhombic crystals; hygroscopic;Brown to brownish violet powder
Complexity
2.8
Covalently-Bonded Unit Count
1
EC Number
231-596-2
Exact Mass
175.84119g/mol
Formal Charge
0
Heavy Atom Count
3
MeSH Entry Terms
palladium chloride;palladium chloride dihydrate;palladium dichloride;palladium dichloride dihydrate;PdCl2
Monoisotopic Mass
175.84119g/mol
NSC Number
146183
Other Experimental
DELIQUESCENT; DECOMPOSES @ 500 °C;Decomposition at high temperatures to palladium and chlorine;Sublimes at 590 °C; decomposition begins at 600 °C and is complete at 740 °C;Dark brown crystals; soluble in water, alcohol, acetone; reduced in solution by hydrogen or carbon monoxide to metal /Palladium(II) chloride dihydrate/
Rotatable Bond Count
0
UN Number
3290
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