Electrolytic reduction of magnesium chloride, Chemistry

Electrolytic reduction of magnesium chloride

Iron cell 2. Magnesium 3. Graphite anode 4. Porcelain hood 5. Iron cathode 6. Coal gas 7. Chlorine 8. Coal gas 9. Molten electrolyte

In this step anhydrous MgCl2 is mixed with NaCl and KCl. Addition of NaCl and KCl will lower the melting point of MgCl2 and also increase the conductivity of the electrolyte.

The electrolysis is carried out in an iron pot which acts as cathode. A graphite rod enclosed in a porcelain tube is dipped into the electrolyte and acts as anode. The iron vessel is maintained at 700o C by external heating. The porcelain tube has an outlet for letting off chlorine gas. During electrolysis the following reactions take place.

2050_Electrolytic reduction of magnesium chloride.png

 

Chlorine gas liberated at anode escapes through the porcelain tube. Magnesium formed at cathode floats on the electrolyte as its density is less. Magnesium is susceptible to oxidation by air. Therefore a stream of coal gas is passed over floating magnesium to prevent oxidation. Floating magnesium is removed at regular intervals. The magnesium thus obtained will be 99.9% pure.

 

Posted Date: 8/29/2012 3:15:14 AM | Location : United States







Related Discussions:- Electrolytic reduction of magnesium chloride, Assignment Help, Ask Question on Electrolytic reduction of magnesium chloride, Get Answer, Expert's Help, Electrolytic reduction of magnesium chloride Discussions

Write discussion on Electrolytic reduction of magnesium chloride
Your posts are moderated
Related Questions
write the structures of the major product (saytzeff elimination) when the following alcohols are dehydrated with hot,concentrated sulphuric acid. 1. 3-methyl-2-butanol 2. 2-pentano

what are the diferent types of indicators and describe them

The order of filling of electrons in the orbitals of an atom will be : (1) 3d, 4s, 4p, 4d, 5s,                        (2)  4s, 3d, 4p, 5s, 4d        (3) 5s, 4p, 3d, 4d, 5s

Q. Detect the presence of synthetic food colours in the given samples? Objectives After conducting this activity, you will be able to: • describe the kind of natural

Element  is strongly electropositive and Y  is strongly electronegative. Both element are univalent, the compounds formed from their combination will be: (1) X + Y -

Calculate the expected enthalpy of hydrogenation of a six-membered ring with three double bonds and compare it with the value obtained in 74.1. What is the reason for this diffe

Deodorants: Just as the name suggests, deodorants are applied basically to mask the body odour. The body odour provides from the bacterial action subsequent perspiration. Hence

Polyethylene: Polyethylene are formed by polymerization of ethylene under high pressure and at moderately high temperature. The resulting polymers are then subjected to substituti


Explain significance of orthogonality rule