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Chemical compound From Wikipedia, the free encyclopedia
Silver perchlorate is the chemical compound with the formula AgClO4. This white solid forms a monohydrate and is mildly deliquescent. It is a useful source of the Ag+ ion, although the presence of perchlorate presents risks. It is used as a catalyst in organic chemistry.
Names | |
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IUPAC name
Silver(I) perchlorate | |
Systematic IUPAC name
Silver(I) chlorate(VII) | |
Other names
Perchloric acid, silver(1+) salt Argentous perchlorate | |
Identifiers | |
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3D model (JSmol) |
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ChemSpider | |
ECHA InfoCard | 100.029.123 |
EC Number |
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PubChem CID |
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UNII | |
CompTox Dashboard (EPA) |
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Properties | |
AgClO4 | |
Molar mass | 207.319 g/mol |
Appearance | Colorless hygroscopic crystals |
Density | 2.806 g/cm3 |
Melting point | 486 °C (907 °F; 759 K) (decomposes) |
557 g/100 mL (25 °C) 792.8 g/100 mL (99 °C) | |
Solubility | soluble in organic solvents |
Structure | |
cubic | |
Hazards | |
GHS labelling: | |
Danger | |
H272, H314 | |
P210, P220, P221, P260, P264, P280, P301+P330+P331, P303+P361+P353, P304+P340, P305+P351+P338, P310, P321, P363, P370+P378, P405, P501 | |
NFPA 704 (fire diamond) | |
Except where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).
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Silver perchlorate is created by heating a mixture of perchloric acid with silver nitrate.
Alternatively, it can be prepared by the reaction between barium perchlorate and silver sulfate, or from the reaction of perchloric acid with silver oxide.
Silver perchlorate is noteworthy for its solubility in aromatic solvents such as benzene (52.8 g/L) and toluene (1010 g/L).[1] In these solvents, the silver cation binds to the arene, as has been demonstrated by extensive crystallographic studies on crystals obtained from such solutions.[2][3] Its solubility in water is extremely high, up to 500 g per 100 mL water.
Similar to silver nitrate, silver perchlorate is an effective reagent for replacing halides ligands with perchlorate, which is a weakly or non-coordinating anion. The use of silver perchlorate in chemical synthesis has declined due to concerns about explosiveness of perchlorate salts. Other silver reagents are silver tetrafluoroborate, and the related silver trifluoromethanesulfonate and silver hexafluorophosphate.
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