When cold it does not react readily with such common metals as iron or copper. When hot it is an oxidizing agent, the sulfur in it being reduced; sulfur dioxide gas may be released. Hot concentrated sulfuric acid reacts with most metals and with several nonmetals, e.g., sulfur and ...
The reaction between sulfuric acid and calcium carbonate is similar in some ways to the reaction with baking soda -- the carbon dioxide bubbles off, and the salt that remains behind is calcium sulfate. Reacting sulfuric acid with the strong base sodium hydroxide will make sodium sulfate, while ...
leached from manganese nodules with sulfuric acid by removing Fe ions from the soln., adding metallic iron to deposit copper, and feeding gaseous H2S in the presence of the precipitated copper. CONSTITUTION:By adding an alkali substance such as calcium carbonate, especially calcareous abyssal mud ...
(ferrous sulfate) and by burning sulfur. The first major industrial demand for sulfuric acid was the Leblanc process for making sodium carbonate (developed c.1790). Sulfuric acid was produced at Nordhausen from green vitriol but was expensive. A process for its synthesis by burning sulfur with ...
Underpotential Deposition of Copper on Iodine-Modified Pt(111): In Situ STM and ex Situ LEED Studies The dynamic process of underpotential deposition (UPD) of copper on iodine-modified Pt(111) electrode in sulfuric acid solution was investigated by in situ... J.,Inukai,Y.,... - 《Jour...
1486759 Oxidizing ferrous sulphate ALUMINIUM PECHINEY 6 July 1976 [9 July 1975] 28087/76 Heading C1A Ferrous sulphate in an aqueous solution containing 250-600 g/l free H 2 SO 4 is oxidized by adding 60-250 g/l of hydrochloric acid to the solution and contacting with a gas containing fre...
leached from manganese nodules with sulfuric acid by removing Fe ions from the soln., adding metallic iron to deposit copper, and feeding gaseous H2S in the presence of the precipitated copper. CONSTITUTION:By adding an alkali substance such as calcium carbonate, especially calcareous abyssal mud ...
The invention relates to a resource recovery method of sodium persulfate-sulfuric acid serial copper-containing microetch waste liquor for a PCB (Printed Circuit Board), relating to the field of treatment methods of waste water caused by production of the PCB and aiming at providing a treatment ...
The selective separation method sequentially comprises steps of (1) carrying out rotational flow electrolysis on sulfuric acid solution containing copper and beryllium for removing copper for the secondary time; (2) regulating pH value of electrolysis barren liquor; (3) extracting beryllium through P204...
CONSTITUTION:Slaked lime or calcium carbonate is added to an aq. acidic soln. of sulfuric acid contg. zinc and fluorine to be byproduced after recovery of variable materials such as copper, etc. from the smoke and ashes generated in smelting of copper to adjust the pH thereof to 5-6.5. ...