1.19780

Chromate standard solution

traceable to SRM of NIST K₂CrO₄ in H₂O 1000 mg/l CrO₄ Certipur^®

• 別名: Chromate standard for aqueous matrices ready foruse, Nota 1 A
• UNSPSCコード: 41116107
• NACRES: NA.24

特性

• 品質水準: 100
• テクニック: ion chromatography: suitable
• pH: 7 (20 °C in H₂O)
• 密度: 1.0 g/cm³ at 20 °C
• アプリケーション: environmental; food and beverages
• フォーマット: single component solution
• 保管温度: 15-25°C

詳細

アナリシスノート

Concentration     β (CrO₄²⁻): 990 - 1010 mg/l
Determination method: Iodometric titration.
The content of this solution was determined with sodium thiosulfate standard solution (article number 1.09147) standardized against volumetric standard potassium iodate (article number 1.02404). The expanded measurement uncertainty is ± 0.4 % (k=2 coverage factor for 95% coverage probability). The certified value is traceable to primary standard NIST SRM 136f (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard potassium iodate, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025.

法的情報

CERTIPUR is a registered trademark of Merck KGaA, Darmstadt, Germany

安全性情報

• ピクトグラム: GHS08
• シグナルワード: Danger
• 危険有害性情報: H340 - H350i
• 注意書き: P201 - P202 - P280 - P308 + P313 - P405 - P501
• 危険有害性の分類: Carc. 1B Inhalation - Muta. 1B
• 保管分類コード: 6.1D - Non-combustible, acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects
• WGK: WGK 1
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable