Copper nitrate trihydrate
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Copper nitrate trihydrate
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CAS No:
10031-43-3
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Formula:
Cu.3H2O.2HNO3
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Chemical Name:
Copper nitrate trihydrate
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Synonyms:
Nitric acid,copper(2+) salt,hydrate (2:1:3);Nitric acid,copper(2+) salt,trihydrate;Cupric nitrate trihydrate;Copper(II) nitrate trihydrate;Copper dinitrate trihydrate;Copper nitrate trihydrate;Copper nitrate (Cu(NO3)2) trihydrate;13478-37-0;2240164-33-2;2380215-25-6
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CAS No:
Characteristics
129
0.37280
Cream to brown Fine Powder
2,32 g/cm3
114 °C
170°C
H2O: soluble
0-6°C
Oral-Rat LD50: 940 mg/kg
Non-combustible; the fire produces toxic copper and nitrogen oxide fumes;
Safety Information
II
5.1
UN 3085 5.1/PG 2
2
8-22-34-36/38-50/53-41-38
17-26-36/37/39-45-37/39-61-60-39
GL7875000
O,C,Xn,N
Treasury is low temperature, ventilated, dry; stored separately from reducing agent and organic matter
Stable. Strong oxidant - may ignite combustible material. Moisture sensitive. Incompatible with anhydrides, ammonia, amides, cyanides.
P220-P273-P280-P305 + P351 + P338
H272-H302-H315-H318-H400
Copper nitrate trihydrate Use and Manufacturing
In the metal copper method, 30% to 32% nitric acid is added to the acid-resistant reactor with stirring, and copper scraps are slowly added to the reaction under stirring for reaction. After the reaction was carried out for 8h, the solution was heated to 60 ~ 70 ℃, the nitrogen oxide gas was expelled, the reaction until no yellow smoke produced. Put the solution into a storage tank, dilute with water, and then filter. The clear filtrate is acidified with nitric acid and evaporated under reduced pressure. It is concentrated at 60 to 70°C to a relative density of 1.78 to 1.8. The solution is then cooled and crystallized, centrifuged, and dried. Finished copper nitrate. Its 3Cu+8HNO3→3Cul(NO3)2+4H2O+2NO↑ during the reaction, nitrogen oxide gas escapes, which is toxic. For the treatment method, please refer to the absorption method produced by sodium nitrate. The copper oxide method uses copper-containing scraps (containing metallic copper, copper sulfide, copper sulfate, etc.) to roast at 600°C for 6 hours. The resulting copper oxide is acidified with dilute sulfuric acid to obtain a copper sulfate solution. After clarification and filtration, the clean filtrate uses iron filings After replacement, the metallic copper is separated by sedimentation, and then iron scraps mixed in the metallic copper powder are removed by elutriation, and then separated and roasted to obtain black copper oxide powder. Water, mother liquor and concentrated nitric acid were added to the acid-resistant reactor with stirring, and copper oxide was slowly added at 25-30°C under stirring until no yellow smoke occurred. The solution was diluted with water to 30°Bé and vacuum suction filtered. Add hydrogen peroxide to the clear filtrate and adjust Ph4~4.5, then clarify and filter to remove the iron hydroxide precipitate. After the clear solution is acidified by adding nitric acid, the concentrated copper nitrate is prepared by evaporation and concentration, cooling and crystallization, centrifugal separation and drying. Its 2Cu+O2→2CuOCuS+2O2→CuSO4CuSO4→CuO+SO2↑CuO+H2SO4→CuSO4+H2OCuSO4+Fe→FeSO4+Cu↓CuO+2fHNO3→Cu(NO3)2+H2O
Analytical Reagent
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