METHOD FOR RECOVERING HYDROCHLORIC ACID AND COPPER CARBONATE FROM COPPER CHLORIDE SOLUTIONPROBLEM TO BE SOLVED: To provide a method for recovering valuable materials from a spent copper chloride etching solution that treats the surplus spent solution within the site and allows an effective utilization ...
(a)To 50 cm3 of hydrochloric acid, add excess copper(ll) oxide/copper(ll) carbonate andstir.[1]Continue adding copper(ll) oxidelcopper(Il) carbonate while stirring until no moredissolves.[1]Filter the mixture to obtain copper(ll) chloride as the filtrate.[1]Heat the filtrate until it is...
Alternatively, it may be prepared by treating copper carbonate with hydrochloric acid followed by crystallization: CuCO3 + 2HCl → CuCl2 + CO2 + H2O In the above preparation, the hydrate of the salt crystallizes, precipitates, and may be dehydrated by heating under vacuum. 9.6 Reactions When heat...
(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...
The σ-palladium intermediate of equation(286)need not eliminate the elements of palladium hydride. For example, hydroxypalladation of ethylene with PdCl2in the presence of ferric nitrate and acetic acid gave the monoacetate of ethylene glycol.559In a stoichiometric reaction with bidentate alkenes, th...
What is the chemical equation for the reaction between zinc carbonate and sulfuric acid? How are hydroxide ions formed? The following questions are about a silver-copper voltaic cell setup: a. Draw a labelled diagram to explain how a silver-copper voltaic cell works. Your diagram must sho...
Provide the molecular equation for the following: a. copper(II) sulfate + sodium nitrate b. sodium nitrate + sulfuric acid c. sodium carbonate + hydrochloric acid Write the net ionic equation for the reaction that occurs between silver nitrate and sodium ...
The purified ammonia leaching solution is evaporated at 90 °C for 25 min to obtain basic zinc carbonate. The purity of ZnO obtained after calcination at 500 °C for 120 min is 96.31%. The ammonia leaching residue was pickled with 3 mol·L−1 acetic acid for 30 min to effectively ...
4.A method of making a micronutrient supplement according to claim 1, wherein in step b) the reactants are reacted in accordance with reaction equation ii) or iii) with the copper metal and one of hydrochloric acid and cupric chloride forming a reaction mixture and the oxygen being injected...
the fresh acid stream to the nickel stripping step need not contain nickel. Thus, the nickel could be recovered by reacting the nickel strip concentrate with sodium carbonate and recovering nickel by decomposing the nickel carbonate formed and reducing the resultant oxide. It is to be understood ...