Mixing
Sana Inam
Assistant Professor
Faculty of pharmaceutical sciences , GCUF
1
, Introduction
• Mixing is the most widely used operation in which two or more than
two substances are combined together. Perfect mixing is that in which
each particle of one material lies as nearly adjacent as possible to a
particle of the other material
• The term BLENDING means to mix smoothly
• The terms MIXING and BLENDING are commonly used
interchangeable in the pharmaceutical industry.
, Objective of mixing
• The main objectives of mixing may be:
1. Simple physical mixing of materials to form a uniform mixture.
2. To promote the chemical reaction( diffusion ,dissolution etc.) to get uniform
products.
3. Dispersion of solid in liquid to form suspension or paste.
4. Dispersion of two immiscible liquids to form an emulsion.
, TYPES OF MIXTURES
• There are three types of mixture
1. Positive mixtures
2. Negative mixtures
3. Neutral mixtures
Sana Inam
Assistant Professor
Faculty of pharmaceutical sciences , GCUF
1
, Introduction
• Mixing is the most widely used operation in which two or more than
two substances are combined together. Perfect mixing is that in which
each particle of one material lies as nearly adjacent as possible to a
particle of the other material
• The term BLENDING means to mix smoothly
• The terms MIXING and BLENDING are commonly used
interchangeable in the pharmaceutical industry.
, Objective of mixing
• The main objectives of mixing may be:
1. Simple physical mixing of materials to form a uniform mixture.
2. To promote the chemical reaction( diffusion ,dissolution etc.) to get uniform
products.
3. Dispersion of solid in liquid to form suspension or paste.
4. Dispersion of two immiscible liquids to form an emulsion.
, TYPES OF MIXTURES
• There are three types of mixture
1. Positive mixtures
2. Negative mixtures
3. Neutral mixtures
