Molecule structure of Cupric Nitrate (CAS NO.3251-23-8):

IUPAC Name: Cupric Nitrate 
Molecular Weight: 187.5558 g/mol
Molecular Formula: CuN₂O₆ 
Enthalpy of Vaporization: 37.72 kJ/mol
Boiling Point: 83 °C at 760 mmHg
Vapour Pressure: 49.8 mmHg at 25 °C 
Density: 1.00 g/mL at 20 °C
Melting Point: 115 °C
Water Solubility: soluble
H-Bond Acceptor: 6 
Exact Mass: 186.905237
MonoIsotopic Mass: 186.905237
Topological Polar Surface Area: 132
Heavy Atom Count: 9
Canonical SMILES: [N+](=O)([O-])[O-].[N+](=O)([O-])[O-].[Cu+2]
InChI: InChI=1S/Cu.2NO3/c;2*2-1(3)4/q+2;2*-1
InChIKey: XTVVROIMIGLXTD-UHFFFAOYSA-N
EINECS: 221-838-5
Product Categories: Inorganics;Copper Salts; Metal and Ceramic Science; Salts; AAS; AAS CRMsAlphabetic; AASSpectroscopy; CO - CZMethod Specific; Extractable Heavy metalsSpectroscopy; Matrix Selection; Nitrate; Oeko-Tex Standard 100; Spectroscopy; Application CRMs; C; Cationic SolutionsChromatography; Cationic Standard SolutionsAlphabetic; CO - CZ; Ion Chromatography; Ion Chromatography Standards

 Cupric Nitrate (CAS NO.3251-23-8) is an effective reagent for nitration of aromatic compounds in combination with acetic anhydride. Hydrated copper nitrate absorbed onto clay affords a reagent called "Claycop". The resulting blue-colored clay is used as a slurry, for example for the oxidation of thiols to disulfides. Claycop is also used to convert dithioacetals to carbonyls. A related reagent based on Montmorillonite has proven useful for the nitration of aromatic compounds. Cupric Nitrate is also used in medicine, as an insecticide, in chemical analysis, in making light sensitive papers.

 Cupric Nitrate forms when copper metal is treated with N₂O₄:
Cu + 2 N₂O₄ → Cu(NO₃)₂ + 2 NO
 Hydrated copper nitrate can be made by hydrolysis of the anhydrous material or by treating copper metal with an aqueous solution of silver nitrate or concentrated nitric acid:
Cu + 4 HNO₃ → Cu(NO₃)₂ + 2 H₂O + 2 NO₂

Copper and its compounds are on the Community Right-To-Know List. Reported in EPA TSCA Inventory.

Hazard Codes: O, C, Xi
Risk Statements: 8-20/21/22-34-22-36/38-20-45 
R8 :Contact with combustible material may cause fire. 
R20/21/22:Harmful by inhalation, in contact with skin and if swallowed. 
R34:Causes burns. 
R36/38:Irritating to eyes and skin. 
R20:Harmful by inhalation. 
R45:May cause cancer.
Safety Statements: 53-17-26-36/37/39-45-36 
S53:Avoid exposure - obtain special instructions before use. 
S17:Keep away from combustible material. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection. 
S45:In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.) 
S36:Wear suitable protective clothing.
RIDADR: UN 3085 5.1/PG 3
WGK Germany: 3
HazardClass: 5.1
PackingGroup: II
Moderately toxic by ingestion. A severe eye and skin irritant. Potentially explosive reaction above 220°C with ammonium or potassium hexacyanoferrate(II). Reaction with ammonia + potassium amide gives explosive product. Violent reaction with acetic anhydride. May ignite on prolonged contact with paper. Concentrated solutions may ignite in contact with tin or aluminum foil. Used as a fungicide, herbicide, and as a catalyst component in solid rocket fuel. When heated to decomposition it emits toxic fumes of NO_x. See also COPPER COMPOUNDS and NITRATES.

ACGIH TLV: TWA (fume) 0.2 mg/m³; (dust, mist) 1 mg(Cu)/m³

 Cupric Nitrate (CAS NO.3251-23-8) is also named as Caswell No. 246 ; Claycop ; Copper(2+) nitrate ; Copper(II) nitrate ; Cupric dinitrate ; Cupric nitrate ; EPA Pesticide Chemical Code 076102 ; HSDB 264 ; Nitric acid, copper(2+) salt ; UNII-9TC879S2ZV . Cupric Nitrate (CAS NO.3251-23-8) is blue crystalline solid. It is soluble in water. Toxic oxides of nitrogen are produced in fires involving Cupric Nitrate. Mixtures of Cupric Nitrate with alkyl esters may explode, owing to the formation of alkyl nitrates. Mixtures with phosphorus, tin(II) chloride or other reducing agents may react explosively. A finely divided mixture of potassium ferrocyanide and Cupric Nitrate exploded when dried at 220°C. It is noncombustible, but Cupric Nitrate will accelerate the burning of combustible materials. If large quantities of the material are involved in a fire or the material is finely divided, an explosion may result. Prolonged exposure to fire or heat may result in an explosion.  Inhalation causes irritation of throat and lungs. Ingestion of large amounts causes violent vomiting and purging, intense pain, collapse, coma, convulsions, and paralysis. Solutions can irritate eyes. Contact with solid causes severe eye surface injury and skin irritation.