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Pharmaceutical Glass Interactions
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Pharmaceutical Glass Interactions

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Questions and Answers

What change in the hydrolytic resistance of Type III sodalime-silica glass containers will result in a classification change to Type II?

  • Increasing the sodium oxide content
  • Reducing the silicon dioxide content
  • Treating the inner surface (correct)
  • Adding more aluminum oxides

    • Which USP glass classification is described as having low leachability and high thermal stability?

  • Type III
  • Type IV
  • Type I (correct)
  • Type II

    • What characterizes Type I glass in terms of its composition?

  • High aluminum oxide levels
  • Rich in calcium oxide
  • Predominantly silicon dioxide and boric oxide (correct)
  • High sodium oxide content

    • Which type of glass is chemically less resistant but easier to mold into shapes due to its composition?

    <p>Type III</p> Signup and view all the answers

    What treatment has Type II glass containers undergone to improve their properties?

    <p>Sulfur dioxide treatment</p> Signup and view all the answers

    What type of glass is suitable for most pharmaceutical products according to USP?

    <p>Type I</p> Signup and view all the answers

    Which type of glass has a lower concentration of migratory oxides compared to the other?

    <p>Type II</p> Signup and view all the answers

    What characteristic makes Type I glass more stable against thermal expansion stress?

    <p>$\text{Low thermal coefficient of expansion (CoE)}$</p> Signup and view all the answers

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