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Base Composition and Melting Range Quiz

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Questions and Answers

What information does the melting range of fatty suppository bases provide?

The chemical composition of the fatty suppository bases

The source of origin of the fatty suppository bases

The exact temperature at which the fat starts to melt

The temperature at which the fat is completely melted (correct)

Why do fatty suppository bases not have sharp melting points?

Incompatibility with other constituents

Lack of preservatives, antioxidants, and emulsifiers

Because of their synthetic composition

Due to the presence of triglycerides (correct)

What does the solid-fat index (SFI) help determine in fatty bases?

Incompatibilities with other constituents

Melting characteristics

Source of origin

Molding character and surface feel (correct)

Why might manufacturers of fatty bases use different methods for determining melting characteristics?

To align with international standards Signup and view all the answers

What does the hydroxyl value measure?

The measure of unesterified positions on glyceride molecules Signup and view all the answers

What does the saponification value indicate?

The milligrams of potassium hydroxide required to neutralize the free acids and saponify the esters in 1 g of fat Signup and view all the answers

What does the solidification point value allow prediction of?

Time required for solidifying a molded base Signup and view all the answers

What does the solidification point value indicate when there is a reduced differential between mold temperature and mass temperature?

Brittle base if molded too quickly Signup and view all the answers

What does the solid-fat index (SFI) measure?

The rate of solidification of a fatty base Signup and view all the answers

What does the saponification value represent in terms of chemical content?

Ester content Signup and view all the answers