What is pulverization by intervention?

Pulverization by Intervention is used with hard crystalline powders that do not crush or triturate easily, or gummy-type substances. The dissolved powder is then mixed in a mortar or spread on an ointment slab to enhance the evaporation of the solvent.

What is pulverization by intervention in pharmacy?

Pulverization by intervention is the process of reducing the size of particles in solid using the aid of an additional material in which that material is soluble – a volatile solvent that evaporates.

What is the meaning of pulverization?

Definition of pulverization “Pulverization” (comminution, crushing, grinding) is the process of applying an external force to a (solid) material of a certain size to destroy it and reduce it into pieces that are smaller than the original size.

What is trituration in particle size reduction?

The term trituration refers to the process of size reduction of substances to a fine powder but it is also applied for the process whereby a mixture of fine powders is intimately mixed in a mortar. The circular mixing motion causes blending and also breaks up soft aggregates of powders.

What are the different types of pulverizing mills?

There are basically four different types of pulverizing mills which are designed to reduce coal with a top particle size of about 50 mm to the necessary particle size range.

What is crushing and pulverization?

The reduction of materials such as stone, coal, or slag to a suitable size for their intended uses such as road building, concrete aggregate, or furnace firing.

What is meant by Levigation?

Levigation is the process of grinding an insoluble substance to a fine powder, while wet. The material is introduced into the mill together with water, in which the powdered substance remains suspended, and flows from the mill as a turbid liquid or thin paste, according to the amount of water employed.

What is the punch method?

The base of the capsule is held vertically and the open end is repeatedly pushed or “punched” into the powder until the capsule is filled; the cap is then replaced to close the capsule. Each filled capsule is weighed using an empty capsule as a counterweight.

What is meant by vaporized?

transitive verb. 1 : to convert (as by the application of heat or by spraying) into vapor. 2 : to cause to become dissipated. 3 : to destroy by or as if by converting into vapor a tank vaporized by a shell.

What is root word of pulverize?

The word pulverize comes from the Latin word ‘pulvis’ meaning ‘dust’ or ‘powder’, and later from ‘pulverizare’, which means to ‘reduce to powder’.

What is trituration method?

A trituration is a dilution of a potent drug powder with an inert diluent powder, usually lactose, in a definite proportion by weight. We can then remove a weighable portion (aliquot) of the mixture containing the desired quantity of substance to maintain an acceptable range of accuracy.

Which technique will not reduce the particle size of a powder?

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