(annealed); electrical resistivity 1.71 microhm-cm at 25°C; Poisson's ratio 0.33; melts at 1,083°C; vaporizes at 2,567°C; insoluble in water; dissolves in nitric acid and hot sulfuric acid; slightly soluble in hydrochloric acid; also soluble in ammonium hydroxide, ammonium carbonate and...
(annealed); electrical resistivity 1.71 microhm-cm at 25°C; Poisson's ratio 0.33; melts at 1,083°C; vaporizes at 2,567°C; insoluble in water; dissolves in nitric acid and hot sulfuric acid; slightly soluble in hydrochloric acid; also soluble in ammonium hydroxide, ammonium carbonate and...
(annealed); electrical resistivity 1.71 microhm-cm at 25°C; Poisson's ratio 0.33; melts at 1,083°C; vaporizes at 2,567°C; insoluble in water; dissolves in nitric acid and hot sulfuric acid; slightly soluble in hydrochloric acid; also soluble in ammonium hydroxide, ammonium carbonate and...
Copper dissolves in nitric acid with the formation of Cu(NO3)2 and nitrogen oxides, in hot concentrated H2SO4 with the formation of CuSO4 and SO2, and in hot dilute H2SO4 upon passing air through the solution. All copper salts are toxic. Univalent copper and bivalent copper form numerous...
Copper(II) oxide dissolves in mineral acids such as hydrochloric acid, sulfuric acid or nitric acid to give the corresponding copper(II) salts:CuO + 2 HNO3 → Cu(NO3)2 + H2O CuO + 2 HCl → CuCl2 + H2O CuO + H2SO4 → CuSO4 + H2OCopper(II) oxide reacts with concentrated alkali to...
production method electrolysis method takes metal copper as raw material and dissolves in concentrated sulfuric acid. The composition of the electrolyte is: Cu52.3 g/L, H2SO4 about 200g/L, electrolyte temperature 58.5 degrees C, cell voltage 0.33V, cathode current density 1.82 A/cm2. After ele...
production method electrolysis method takes metal copper as raw material and dissolves in concentrated sulfuric acid. The composition of the electrolyte is: Cu52.3 g/L, H2SO4 about 200g/L, electrolyte temperature 58.5 degrees C, cell voltage 0.33V, cathode current density 1.82 A/cm2. After ele...
Blue-green orthorhombic crystals; deliquescent; sublimes; readily dissolves in water, alcohols and dioxane.The trihydrate and hexahydrate are blue rhombohedral crystals; hygroscopic; density 2.32 g/cm3 (trihydrate), 2.07 g/cm3 (hexahydrate); melts at 114°C (trihydrate); trihydrate decomposes at 170...
Blue-green orthorhombic crystals; deliquescent; sublimes; readily dissolves in water, alcohols and dioxane. The trihydrate and hexahydrate are blue rhombohedral crystals; hygroscopic; density 2.32 g/cm3 (trihydrate), 2.07 g/cm3 (hexahydrate); melts at 114°C (trihydrate); trihydrate decomposes at ...
under vacuum to form oxides with and zn which then dissolves in the nitric acid 49...50% under stirring so as to obtain a solution with ph = 1, which add 20% naoh in the presence of a surface active substance,neionice and calcium lignosulfonatului form a stable suspension with ph 6...