Differbetween
The main difference between peptization and coagulation is that peptization involves the breakdown of a precipitate in order to form colloids whereas coagulation includes the formation of aggregates in a colloidal dispersion.
- What is meant by Peptization?
- What is Peptization example?
- What is meant by peptization of colloidal sols?
- What is coagulation with example?
- What is meant by Tyndall effect?
- What is coagulation value?
- What is Peptization and coagulation?
- What is hardy Schulze rule?
- How can we avoid Peptization?
- What is Peptizing agent?
- What is the cause of Peptization?
- What is Multimolecular colloid?
What is meant by Peptization?
Peptization or deflocculation is the process responsible for the formation of converting precipitate into colloid by shaking with it an electrolyte. This is particularly important in colloid chemistry or for precipitation reactions in an aqueous solution.
What is Peptization example?
Peptization is the method of producing stable colloids using an electrolyte to split up and distribute a precipitate into the colloids. ... Example: When the ferric chloride is added to the precipitate of ferric hydroxide, the hydroxide precipitate transfer to the sol by absorbing ferric ions.
What is meant by peptization of colloidal sols?
Peptization is the process of formation of colloidal sol in which conversion of fresh precipitate into colloidal particles by shaking it with the dispersion medium with the help of a small amount of suitable electrolyte. The electrolyte which is added is called a peptizing agent.
What is coagulation with example?
When it is heated the runny yolk and white (albumen – which is the major source of protein) turn solid. The proteins in the egg start to thicken, a process known as coagulation. ... Coagulation is irreversible, the proteins cannot be turned back into their liquid form. Another example is heating milk.
What is meant by Tyndall effect?
Tyndall effect, also called Tyndall phenomenon, scattering of a beam of light by a medium containing small suspended particles—e.g., smoke or dust in a room, which makes visible a light beam entering a window. The effect is named for the 19th-century British physicist John Tyndall, who first studied it extensively.
What is coagulation value?
“The minimum concentration of electrolyte in millimoles required to cause coagulation of one litre of colloidal solution is called coagulation value”. Additional Information: Coagulation is also known as flocculation or precipitation.
What is Peptization and coagulation?
Formation of sol from the precipitate by the addition of electrolyte is known as peptization. While the conversion of a sol into a precipitate is known as coagulation. It involves the neutralization of a sol particle to form a suspension and this represents the coagulation.
What is hardy Schulze rule?
The required amount of electrolyte for the coagulation of a definite quantity of colloidal solution is dependent on the valency of the coagulating ion (which is the ion that holds a charge which is opposite to the charge of the colloidal particles).
How can we avoid Peptization?
Peptization can be minimized by washing a precipitate with a solution of an electrolyte that is volatilized during an ensuing drying step.
What is Peptizing agent?
1. n. [Drilling Fluids] A product that enhances dispersion of a substance (such as clay) into colloidal form.
What is the cause of Peptization?
Cause of peptization:– As electrolyte is added to a freshly precipitated substance, the particles of the precipitate preferentially adsorbs one particular type of ions of the electrolyte. As a result they get dispersed due to electrostatic repulsions.
What is Multimolecular colloid?
Multimolecular colloids: A large number of atoms or smaller molecules (diameter <1 nm) of a substance on dissolution aggregate together to form species having size in the colloidal range.
