Copper(II) nitrate
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Not to be confused with Copper(I) nitrate.
Copper(II) nitrate describes any member of the family of inorganic compounds with the formula Cu(NO3)2(H2O)x. The hydrates are blue solids. Anhydrous copper nitrate forms blue-green crystals and sublimes in a vacuum at 150-200 °C.[5][6] Common hydrates are the hemipentahydrate and trihydrate.
Quick Facts Names, Identifiers ...
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Names | |||
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IUPAC name
Copper(II) nitrate | |||
Other names
Cupric nitrate | |||
Identifiers | |||
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3D model (JSmol) |
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ChEBI | |||
ChemSpider |
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ECHA InfoCard | 100.019.853 | ||
PubChem CID |
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RTECS number |
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UNII |
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CompTox Dashboard (EPA) |
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Properties | |||
Cu(NO3)2 | |||
Molar mass | 187.5558 g/mol (anhydrous) 241.60 g/mol (trihydrate) 232.591 g/mol (hemipentahydrate) | ||
Appearance | blue crystals hygroscopic | ||
Density | 3.05 g/cm3 (anhydrous) 2.32 g/cm3 (trihydrate) 2.07 g/cm3 (hexahydrate) | ||
Melting point | 114 °C (237 °F; 387 K) (anhydrous, decomposes) 114.5 °C (trihydrate) 26.4 °C (hexahydrate, decomposes) | ||
Boiling point | 170 °C (338 °F; 443 K) (trihydrate, decomposes) | ||
trihydrate:[3] 381 g/100 mL (40 °C) 666 g/100 mL (80 °C) hexahydrate:[3] 243.7 g/100 mL (80 °C) | |||
Solubility | hydrates very soluble in ethanol, ammonia, water; insoluble in ethyl acetate | ||
+1570.0·10−6 cm3/mol (~3H2O) | |||
Structure | |||
orthorhombic (anhydrous) rhombohedral (hydrates) | |||
Hazards | |||
Occupational safety and health (OHS/OSH): | |||
Main hazards |
Irritant, Oxidizer | ||
NFPA 704 (fire diamond) | |||
NIOSH (US health exposure limits): | |||
PEL (Permissible) |
TWA 1 mg/m3 (as Cu)[4] | ||
REL (Recommended) |
TWA 1 mg/m3 (as Cu)[4] | ||
IDLH (Immediate danger) |
TWA 100 mg/m3 (as Cu)[4] | ||
Safety data sheet (SDS) | Cu(NO3)2·3H2O | ||
Related compounds | |||
Other anions |
Copper(II) sulfate Copper(II) chloride | ||
Other cations |
Silver nitrate Gold(III) 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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