Preparation of Sodium Peroxide

Preparation of Sodium Peroxide. Assemble the arrangement shown in Fig. 117. Pour a little vaseline oil into wash bottle 1 and leave bottle 2 empty. Put 2-3 g of cleaned metallic sodium into porcelain boat 3 and place it into quartz or refractory glass tube 4. Cover the tube with asbestos and switch on the water-jet pump connected to the arrangement (ZrasZaZZ protective bottles ahead of the pump . Heat the part of the tube where the boat with the sodium is with a gas burner flame. When the sodium ignites, reduce the heating. Suck 

Dissolve a small amount of the sodium peroxide in distilled water. See how this solution reacts with solutions of potassium permanganate and potassium iodide acidified with sulphuric acid (add two or three drops of a starch size to the potassium iodide solution). What is observed Write the equations of the reactions. 

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