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    3. 聚乙烯吡咯烷酮(PVP-K)

      weituo chemical

      化學(xué)名稱(chēng):聚乙烯吡咯烷酮

      Chemical Name:Polyvinylpyrrolidone

      CAS NO.:9003-39-8

      分子式 Molecular formula:(C6H9NO)n

      熔點(diǎn) Melting point:130°C

      沸點(diǎn) Boiling point:217.6°C

      閃點(diǎn) Flash point:93.9°C

      密度 Density:1.144g/cm3

       

      分析項目

      Items

      USO26

      EP7.0/USP36

      K15

      K30

      K90

      K15

      K30

      K90

      外觀(guān)Appearance

      白色至乳白色粉末White or yellowish-white,hygroscopic powder or flakes

      K值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雜質(zhì)NVPImpurity,ppm

      /

      /

      /

      10

      10

      10

      水分water,%

      5

      5

      5

      5

      5

      5

      pH值(5% 水溶液)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

      硫酸鹽灰份Sulphated Ash,%

      0.1

      0.1

      0.1

      0.1

      0.1

      0.1

      氮含量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-吡絡(luò )烷酮      2-Pyrrolidone,%

      3.0

      3.0

      3.0

      3.0

      3.0

      3.0

      甲酸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

      重金屬(以鉛計)Heavy Metals(as Pb),ppm

      10

      10

      10

      10

      10

      10

      Hydrazine,ppm

      1

      1

      1

      1

      1

      1

      過(guò)氧化物Peroxides(Expressed as H2O2),ppm

      400

      400

      400

      400

      400

      400

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