What is coagulation and coagulation threshold?
The lowest concentration of a substance, electrolyte, or nonelectrolyte that brings about coagulation in a system with a liquid dispersion medium is called the coagulation threshold.
What is injury coagulation?
Coagulation, also known as clotting, is the process by which blood changes from a liquid to a gel, forming a blood clot. It potentially results in hemostasis, the cessation of blood loss from a damaged vessel, followed by repair.
What is Peptization 12th?
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.
Can Lyophobic sols be coagulated by dialysis?
On prolonged dialysis, traces of the elecrolyte present in the sol (needed for their stabilization) are removed almost completely and the colloids become unstable and ultimately coagulate.
What affects blood coagulation?
Certain risk factors, such as obesity, slow the flow of blood in the veins, while others, such as age, can increase the body’s natural ability to clot. Even certain medications can affect how quickly your blood clots.
What is Peptisation give example?
Answer: 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.
Why electrolyte is added in 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. This gives the particles of colloidal size.
What is peptization and coagulation?
What Is Peptization And Coagulation 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 the difference between coagulation and precipitate?
It is the gelling or clumping of the particle. Electrolyte is added whose one ion in common with one ion of precipitate. Coagulation is carried out by an electrolyte whose one ion is oppositely charged to one ion of the sol. The particles of precipitate absorb common ion of the electrolyte.
What is the mechanism of coagulation?
Coagulation is carried out by an electrolyte whose one ion is oppositely charged to one ion of the sol. The particles of precipitate absorb common ion of the electrolyte. The particles of the sol take up the ions which are oppositely charged and get neutarlised.
Why does peptization occur in electrochemical precipitate?
This peptization happens since the electrolyte can attract the particles of the precipitate (charged particles) and then the particles can get separated from each other due to electrostatic repulsions. If these particles have the dimensions in colloidal range, this forms a colloidal dispersion.