Silver dichromate

Silver dichromate
Silver dichromate V1.svg
Names
IUPAC name
Silver dichromate
Identifiers
3D model (JSmol)
ChemSpider
ECHA InfoCard 100.029.131 Edit this at Wikidata
EC Number
  • 232-044-3
  • InChI=1S/2Cr.2Ag.7O/q;;2*+1;;;;;;2*-1
  • InChI=1/2Cr.2Ag.7O/q;;2*+1;;;;;;2*-1/rCr2O7.2Ag/c3-1(4,5)9-2(6,7)8;;/q-2;2*+1
  • [Ag+].[Ag+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
Properties
Ag2Cr2O7
Molar mass 431.76 g/mol
Appearance ruby red powder
Density 4.77 g/cm3
Ksp = 2.0×10−7
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
Infobox references

Silver dichromate is a chemical compound with the formula Ag2Cr2O7. It is insoluble in water and decomposes when treated with hot water. Its anion has a charge of -2.

Synthesis

K2Cr2O7 (aq) + 2 AgNO3 (aq) --> Ag2Cr2O7 (s) + 2 KNO3 (aq)

Applications

Related complexes are used as oxidants in organic chemistry. For instance, tetrakis(pyridine)silver dichromate, [Ag2(py)4]2+[Cr2O7]2−, is used to convert benzylic and allylic alcohols to corresponding carbonyl compounds.


This page was last updated at 2022-08-14 05:46 UTC. Update now. View original page.

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