Explain the following Observation Fe(OH)3 SOL COAGULATES ON ADDITION OF A SOLUTION OF K2 SO4

Asked by vaibhav gupta | 30th Jun, 2013, 03:15: PM

Expert Answer:

When an electrolyte is added to the sol, the colloidal particles take up ions carrying opposite charges from the electrolyte. As a result, their charge gets neutralised and this causes the uncharged particles to come closer and to get coagulated. Here Fe3+ ions of ferric hydroxide are attracted by the negatively charged SO42- sol particles and their charge gets neutralised. This leads to coagulation.

Answered by  | 1st Jul, 2013, 10:20: AM

Queries asked on Sunday & after 7pm from Monday to Saturday will be answered after 12pm the next working day.