'monohydrate' | |
| Names | |
|---|---|
| IUPAC names
Mercury dinitrate Mercury(II) nitrate | |
| Other names
Mercuric nitrate | |
| Identifiers | |
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3D model (JSmol) |
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| ChemSpider | |
| ECHA InfoCard | 100.030.126 |
| EC Number |
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PubChem CID |
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| RTECS number |
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| UNII | |
| UN number | 1625 |
CompTox Dashboard (EPA) |
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| Properties | |
| Hg(NO3)2 | |
| Molar mass | 324.60 g·mol-1 (anhydrous) |
| Appearance | colorless crystals or white powder |
| Odor | sharp |
| Density | 4.3 g/cm3 (monohydrate) |
| Melting point | 79 °C (174 °F; 352 K) (monohydrate) |
| soluble | |
| Solubility | soluble in nitric acid, acetone, ammonia insoluble in ethanol |
| −74.0·10−6 cm3/mol | |
| Hazards | |
| GHS labelling: | |
| Danger | |
| H272, H300, H310, H330, H373, H410 | |
| NFPA 704 (fire diamond) | |
| Flash point | Nonflammable |
| Safety data sheet (SDS) | ICSC 0980 |
| Related compounds | |
Other anions |
Mercury(II) sulfate Mercury(II) chloride |
Other cations |
Zinc nitrate Cadmium nitrate |
Related compounds |
Mercury(I) 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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Mercury(II) nitrate is an inorganic compound with the chemical formula Hg(NO3)2. It is the mercury(II) salt of nitric acid HNO3. No evidence for any neutral mercury(II) nitrate has been reported. Commonly used and commercially available 'mercury(II) nitrate monohydrate' is actually a basic mercury nitrate with the formula Hg(NO3)OH·nH2O. All mercury(II) nitrate salts are colorless or white soluble crystalline solids that are occasionally used as reagents in organic synthesis.
Hg(NO3)OH is made by treating mercury or mercury(II) oxide with hot concentrated nitric acid. Hydrated analogues can be produced by the recrystallization of Hg(NO3)OH in water.
Neither the neutral anhydrous nor the monohydrate has been confirmed by X-ray crystallography.
'Mercury(II) nitrate' is used as an oxidizing agent in organic synthesis, as a nitrification agent, as an analytical reagent in laboratories, in the manufacture of felt, and in the manufacture of mercury fulminate. An alternative qualitative Zeisel test can be done with the use of mercury(II) nitrate instead of silver nitrate, leading to the formation of scarlet red mercury(II) iodide.
Mercury compounds are highly toxic. The use of this compound by hatters and the subsequent mercury poisoning of said hatters is a common theory of where the phrase "mad as a hatter" came from.