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    3. Products Detail

      weituo chemical

      Polyvinylpyrrolidone

      Chemical Name:Polyvinylpyrrolidone

      CAS NO.:9003-39-8

      Molecular formula:(C6H9NO)n

      Melting point:130°C

      Boiling point:217.6°C

      Flash point:93.9°C

      Density:1.144g/cm3

       

      Items

      USO26

      EP7.0/USP36

      K15

      K30

      K90

      K15

      K30

      K90

      Appearance

      White or yellowish-white,hygroscopic powder or flakes

      K Value

      12.8-17.3

      27.0-32.4

      81.0-97.2

      12.8-17.3

      27.0-32.4

      81.0-97.2

      NVP Impurity,ppm

      /

      /

      /

      10

      10

      10

      water,%

      5

      5

      5

      5

      5

      5

      pH Value(5% in aqueous solution)

      3.0-7.0

      3.0-7.0

      3.0-7.0

      3.0-7.0

      3.0-7.0

      3.0-7.0

      Sulphated Ash,%

      0.1

      0.1

      0.1

      0.1

      0.1

      0.1

      Nitrogen Content,%

      11.5-12.8

      11.5-12.8

      11.5-12.8

      11.5-12.8

      11.5-12.8

      11.5-12.8

      2-Pyrrolidone,%

      3.0

      3.0

      3.0

      3.0

      3.0

      3.0

      Formic Acid(ppm,%)

      0.5

      0.5

      0.5

      0.5

      0.5

      0.5

      Adehydes(Expressed as Acetaldehyde),ppm

      500

      500

      500

      500

      500

      500

      Heavy Metals(as Pb),ppm

      10

      10

      10

      10

      10

      10

      Hydrazine,ppm

      1

      1

      1

      1

      1

      1

      Peroxides(Expressed as H2O2),ppm

      400

      400

      400

      400

      400

      400

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