Merck 108475 Tetramethylbenzidine solution 1 Lt
Fiyat
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Kullanılabilirlik: Stokta kalmadı
Katalog No: 108446.0001
Marka: Merck
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Açıklama | |
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Katalog Numarası | 108446 |
Ürün Bilgisi | |
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HS Kodu | 2922 49 85 |
Quality Level | MQ100 |
Fizikokimyasal Bilgiler | |
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Yoğunluk | 1.04 g/cm3 (20 °C) |
pH Değeri | 7.8 (H₂O, 20 °C) |
Özellikler | |
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Concentration after dilution to 1 liter: c(C₁₀H₁₄N₂Na₂O₈ ∙ 2 H₂O) = 0.01 mol/l | |
Amount-of-substance concentration | 0.01000 mol/l |
The concentration of this solution was determined with volumetric standard zinc (article number 1.02409). The determined titer at 20°C was 1.000 with an expanded measurement uncertainty of ± 0.004 (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 682 (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard zinc, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025. |