merck millipore,默克密理愽
  • merck millipore,默克密理博,119899,亚硝酸盐 IC 标准液 1,000 mg NO2-

  • merck millipore,默克密理博,119899,亚硝酸盐 IC 标准液 1,000 mg NO2-

    产品名称：亚硝酸盐 IC 标准液 1,000 mg NO2-
    产品型号：119899
    traceable to SRM from NIST NaNO₂ in H₂O 1000 mg/l NO₂ Certipur

    merck millipore,默克密理博,119899,亚硝酸盐 IC 标准液 1,000 mg NO2-

  • 产品介绍
  • merck millipore,默克密理博,119899,亚硝酸盐 IC 标准液 1,000 mg NO2-

    重要规格表
    描述
    产品目录编号 119899
    同义词 Nitrite standard for aqueous matrices ready foruse
    产品信息
    HS代码 2834 10 00
    理化信息
    密度 1.001 g/cm³
    pH值 7 (H₂O, 20 °C)
    溶解度 (20 °C) 可溶
    GHS安全信息
    储存类别 10 - 13 其它液体及固体
    WGK WGK 1 轻度的水危害
    一次性 28
    水溶液:第D类.
    规格
    规格
    Concentration     β (NO₂⁻)990 - 1010 mg/l
    Determination method: Cerimetric titration.
    The content of this solution was determined by back-titration with Ammonium(II) ferrous sulfate (Merck article number 1.03792) standardized by Cerium(IV) sulfate (Merck article number 1.09092) against volumetric standard Iron(II)ethylendiammonium sulfate (Merck article number 1.02402). The expanded measurement uncertainty is +/-0.007 (k=2 coverage factor for 95% coverage probility). The certified value is traceable to primary standard NIST SRM 8040 (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard Iron(II

    merck millipore,默克密理博,119899,亚硝酸盐 IC 标准液 1,000 mg NO2-

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