What happens when a colloidal sol of Fe Oh 3 and As2S3 are mixed?

Fe(OH)3 is positively charged sol whereas As2S3 in a negatively charged sol. On mixing, charges are neutralized and so coagulation occurs.

What happens when a freshly precipitated Fe OH 3 is shaken with fecl3?

When freshly precipitated Fe(OH)3 is shaken with little amount of dilute solution of FeCl3(electrolyte). Peptization process (ions of the electrolyte are adsorbed by the precipitate particles) takes place by converting the Fe(OH)3 precipitate into colloidal solution positively charged solution of Fe(OH)3.

Is Fe OH 3 a positive sol?

Fe(OH)3 sol contains positively charged colloidal particles.

What happens when a colloidal solution?

The types of colloids includes sol, emulsion, foam, and aerosol. Sol is a colloidal suspension with solid particles in a liquid. Emulsion is between two liquids. Foam is formed when many gas particles are trapped in a liquid or solid.

What happens when when ferric hydroxide sol is mixed with Arsenious oxide sol?

The addition of ferric hydroxide solution to arseneous sulphide solution results in the precipitation of both. Ferric hydroxide sol can be prepared from freshly perpared ferric hydroxide precipitate. In both cases the sol particles are positively charged.

Is As2S3 positively charged?

For example, the solutions of gold, arsenioussulphide (As2S3) are negatively charged and the particles move towards the positive electrode while those of Fe(OH)3,AI(OH)3 have positive charge and the particles move towards negative electrode.

When freshly precipitated Fe OH 3 is shaken?

(a) When a freshly prepared precipitate of Fe(OH)3 is shaken with a small amount of FeCl3 solution, peptization occurs by converting the Fe(OH)3 precipitate into colloidal solution of positively charged Fe(OH)3.

What happens when freshly precipitated Fe OH 3 is boiled?

When freshly precipitated Fe(OH)_3 is boiled with water in the presence of few drops of dil HCl, a hydrated ferric oxide sol is obtained. This method is termed. The process of converting a ppt into colloidal sol by shaking it with D.M in the presence of small amount of electrolyte is called peptisation.

What kind of colloidal system is Fe OH 3 sol?

1. Ferric hydroxide forms a hydrophobic sol. Hence it is prepared indirectly by the hydrolysis of ferric chloride with boiling water.

Which type of colloidal Solutionis is formed when a liquid is present in liquid?

emulsion
Liquid in liquid. The colloidal type is an emulsion.

What is colloid liquid?

Colloids are mixtures in which one or more substances are dispersed as relatively large solid particles or liquid droplets throughout a solid, liquid, or gaseous medium. The particles of a colloid remain dispersed and do not settle due to gravity, and they are often electrically charged.

Is As2S3 a positive sol?

The colloidal particles in As2S3 sol are having a negative charge.

What happens when Fe(OH)3 and As2S3 are mixed together?

Please log in or register to add a comment. On mixing Fe (OH)3 positive sol and As2S3 negative sol, mutual coagulation occurs which causes precipitation. When these sol got mixed with each other, due to Fe3+ and S2- ions neutralisation of charges will happen and precipitate will be formed.

How is the Sol charge of Fe(OH)3 and FeCl3 decided?

Charge on sol is decided by preferential adsorption of charge present in the medium.As fe3+ ions are common in fe (OH)3 and fecl3 and fe3+ ions are common in fe (OH)3 & fecl3.Fe3+ ions are preferentially adsorbed over fe (OH)3 molecules and break them to colloidal size

What is the action of Fe(OH)3 on Fe3+ ions?

Fe (OH)3 selectively adsorbs Fe3+ ions from solution and the positive charges repel thus keeping the particles within colloidal size instead of precipitating and settling down. Fast. Simple. Free. Find out for yourself why Grammarly is used by over 30 million users.

What is the best flocculant for As2S3?

As2S3 is a negatively charged sol, the negative charge is due to adsorption of S2- ions on the sol. Thus the most effective flocculant will be AlCl3 as Al has +3 charge on it. Which is best coagulant for As2S3?