Manganese, 101 sulphate

Atkinson, G. Kor, S. K. (1965). The kinetics of ion association in manganese sulphate solutions. I. Results in water, dioxane-water mixtures, and methanol-water mixtures at 25 °C. Journal of Physical Chemistry, 69, 128-33. 

Ocana, N. Alguacil, F. J. Cobalt-manganese separation The extraction of cobalt(II) from manganese sulphate solutions by Cyanex 301. J. Chem. Technol. Biotechnol. 1998, 73, 211-216. 

As follows from the results obtained, numerous parameters influence the quality of precipitates, vs raw materials used (such as, manganese sulphate, nitrate, chloride) pH of initial and final solutions the excess of the oxidant the type of a neutralizing agent (lithium, sodium, potassium hydroxide) the washing method, and pH of leachates. More detailed description of the synthetic routine will be published elsewhere. 

Singh I. 1984. Induction of gene conversion and reverse mutation by manganese sulphate and nickel sulphate in Saccharomyces cerevisiae. Mutat Res 137 47-49. 

Prepare 20 ml of a solution of the obtained compound saturated at room temperature. Pour 3 ml of the solution into each of three test tubes. Add to the first tube 1 ml of a 1 N sulphuric acid solution, one drop of silver nitrate, and one drop of a 1 N manganese sulphate solution. Heat the tube. Add to the second tube 1 ml of a 1 A chromium sulphate solution and 2 ml of a 1 A sodium hydroxide solution. Pour into the third tube 1 ml of a 1 A sodium hydroxide solution and 1 ml of a 1 A manganese sulphate solution. Comment on your observations. Write the equations of the reactions. 

Add one drop of a silver nitrate solution and several ammonium persulphate crystals to a manganese sulphate solution acidified with sulphuric acid, and then heat the mixture. How does the colour of the solution change What was the role of the silver nitrate What properties do manganese(II) salts have ... 

Add a potassium permanganate solution dropwise to a manganese sulphate solution in a test tube. What occurs Write the equation of the reaction. 

Introduce 0,5 g of lead(IV) oxide into a 0.1 N manganese sulphate solution acidified with a 10 % sulphuric acid solution and heat it. Let the precipitate settle. What is the change in the solution s colour due to Write the equation of the reaction. Will a similar reaction proceed with lead(II) oxide and minium ... 

Chlorides. — The solution of 1 gm. of manganese sulphate in 20 cc. of water should not be rendered more than slightly opalescent on the addition of 1 cc. of nitric acid, followed by silver nitrate solution. 

Manganese Metavanadate, Mn(V03)2.4H20, is a sparingly soluble, dark red powder, obtained by interaction between manganese sulphate and ammonium metavanadate in solution. When the powder is boiled in the precipitating solution, reddish-brown six-sided plates of the anhydrous metavanadate, Mn(V03)2, are produced.8... 

Another manganese niobate, 3Mn0.5Nb205, has been obtained by adding manganese sulphate to potassium niobate and fusing the precipitate with boric acid. It consists of small, greyish-yellow, prismatic rods, density 4-97.1... 

Manganese Arsenates.—Manganous Orthoarsenate, Mns(As04)a. H20, is obtained as brown needles 8 when manganese sulphate is heated with sodium orthoarsenate in a sealed tube at 175° C. 

Magnesium sulphate, 1-normal XI Manganese sulphate, 1-normal X Mercuric chloride Q. 45, 53, IX Mercuric nitrate, 0.2-normal VII Mercurous nitrate, 0.2-normal VII Mercury II... 

Ulsch2 has made some observations on the complete electrochemical oxidation of cane sugar to carbonic acid and water. In a sulphuric acid of 1.15 sp. gr., with the addition of manganese sulphate as an oxygen-carrier, about 98% of the theoretically calculated amount of carbonic acid is obtained. The oxidation at 40°-80° in barium-hydrate solution is also fairly complete, but not directly to carbonic acid oxalate appears also to be formed. 

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