Preparation of Reduced Iron Cobalt, Nickel

Weigh about 0.5 g of iron oxide in a porcelain boat and place the latter into a tube for roasting in an inclined tubular furnace. Insert a thermocouple into the furnace and connect it to a pyrometer. Why must the furnace be inclined somewhat  

Again check the tightness of the apparatus and the purity of the hydrogen. Switch on the furnace and roast the iron oxide in a stream of hydrogen at 600-650 °C during an hour. How can the end of the process be determined  

Switch 00 the furnace and cool the apparatus in a hydrogen stream to room temperature. Extract the boat and put the iron into a jar with a well fitting ground-glass stopper. Test the initial iron oxide and the reduced iron with a magnet. How does iron react with acids and alkalies  

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I. Preparation of Reduced Iron (Cobalt, Nickel) (245). 2. Pr ara-tion of Pyrophoric Iron (246). 3. Preparation of Iron(II) Oxide (246). 4. Preparation of Macrocrystalline Iron(III) Oxide (246). 5. Preparation of Nickel(III) Oxide (247). 6. Preparation and Properties of Sodium Ferrite (247). 7. Preparation of Anhydrous Cobalt (Nickel) Chloride in an Ethanol Solution (247). 8. Preparation of Anhydrous Iron(IlI) Chloride in a Fluidized Bed (247). 9. Preparation of Potassium Trioxalatoferrate(III) (247). 10. Preparation of Tetraamminecarbonatocobalt(III) Nitrate (248). 

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