Cupric Nitrate
Structural Formula Vector Image
Title: Cupric Nitrate
CAS Registry Number: 3251-23-8
Molecular Formula: CuN2O6
Molecular Weight: 187.56
Percent Composition: Cu 33.88%, N 14.94%, O 51.18%
Line Formula: Cu(NO3)2
Literature References: Prepn: Gmelins, Copper (8th ed.) 60B, 164-179 (1958); Addison, Hathaway, J. Chem. Soc. 1958, 3099. Toxicity: H. F. Smyth et al., Am. Ind. Hyg. Assoc. J. 30, 470 (1969).
Properties: Large, blue-green, deliquesc, orthorhombic crystals. Sublimes at 150-225°. mp 255-256°. Sol in water, ethyl acetate, dioxane; dissolves in and reacts vigorously with ether. Keep well closed.
Melting point: mp 255-256°
Derivative Type: Trihydrate
Additional Names: Gerhardite
Properties: Blue, deliquesc, rhombic plates. mp 114.5°; d 2.05. Freely sol in water, alcohol. Practically insol in ethyl acetate. pH of 0.2 molar aq soln 4.0. Keep well closed. LD50 orally in rats: 0.94 g/kg (Smyth).
Melting point: mp 114.5°
Density: d 2.05
Toxicity data: LD50 orally in rats: 0.94 g/kg (Smyth)
Derivative Type: Hexahydrate
Properties: Blue, deliquesc prismatic crystals. Decomposes to trihydrate at 26.4°. d 2.07. Freely sol in water; sol in alc. Keep well closed.
Density: d 2.07
CAUTION: Irritating to skin, mucous membranes.
Use: In light-sensitive reproductive papers; as ceramic color; as mordant and oxidizing agent in textile dyeing and printing; as reagent for burnishing iron, for giving a black "antique" finish to copper, for coloring zinc brown; in nickel-plating baths; in aluminum brighteners; in wood-preservatives, fungicides, herbicides; in pyrotechnic compositions; as catalyst component in solid rocket fuel; as nitrating agent for aromatic organosilicon compds; as catalyst for organic reactions.

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