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4th (30.10.2014) on eutectic mixture by Diptarco Singha

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this ppt is very simple and has immence importance in physical pharmacy. it has been prepared based on the syllabus of WBUT & consists of informations of elimentary label...

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4th (30.10.2014) on eutectic mixture by Diptarco Singha

  1. 1. Melts below the melting point of individual component… The melting point is always fixed… During formation, the components are miscible in liquid state but immiscible in solid state…
  2. 2.  Below the eutectic temperature the mixture of the two substances will exist as a solid. While above it the mixture will convert into a liquid. (e- Eutectic point) Point ‘e’ is the lowest melting point.
  3. 3. It is necessary to adjust the ratio of the components in the mixture. It is also necessary to closely control the components for impurities.
  4. 4. The components must be miscible in a liquid state & mostly immiscible in solid state… The molecules which are in accordance to modified VantHoff’s equation can form eutectic mixtures… The components should have chemical groups that can interact to form physical bonds such has intermolecular hydrogen bonding etc…
  5. 5. Eutectic Mixtures are commonly used in drug designing and delivery processes for various routes of administration… Other uses are:- For the identification of the compounds having similar melting points. Local anesthetics in case of children (used topically).
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this ppt is very simple and has immence importance in physical pharmacy. it has been prepared based on the syllabus of WBUT & consists of informations of elimentary label...

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