melting Flashcards

1
Q

heat capasity during meleting

A

infinity

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2
Q

what are the melting point techniques?

A

capillary method
dsc
hot stage method

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3
Q

differential scanning calorimetry

A
  1. power compensation

2. heat flux

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4
Q

advantage of dsc

A
  1. simple
  2. need small sample
  3. rapid
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5
Q

uses of melting point

A
  1. identify the compund
  2. identify impurities
  3. indicate order of solubility
  4. determine compatability or incompatability of drug excipient combination
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6
Q

how to identify compound through melting point

A
  1. mixed melting point
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7
Q

what is definition of melting point?

A

the temperature where compound change from solid to liquid

the temperature where solid state of compund equilibrium with liquid state

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8
Q

heat capasity during meleting

A

infinity

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9
Q

what are the melting point techniques?

A

capillary method
dsc
hot stage method

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10
Q

differential scanning calorimetry

A
  1. power compensation

2. heat flux

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11
Q

advantage of dsc

A
  1. simple
  2. need small sample
  3. rapid
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12
Q

uses of melting point

A
  1. identify the compund
  2. identify impurities
  3. indicate order of solubility
  4. determine compatability or incompatability of drug excipient combination
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13
Q

how to identify compound through melting point

A
  1. mixed melting point
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14
Q

what is definition of melting point?

A

the temperature where compound change from solid to liquid

the temperature where solid state of compund equilibrium with liquid state

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