1.60333

二クロム酸カリウム 溶液

c(K₂Cr₂O₇) = 1/60 mol, reag. USP, ready-to-use volumetric solution for titration, Titriplex^®

• 化学式: K₂Cr₂O₇
• CAS番号: 7778-50-9
• 分子量: 294.18
• MDL番号: MFCD00011367
• UNSPSCコード: 12352305
• NACRES: NA.21

特性

• product name: 二クロム酸カリウム 溶液, c(K₂Cr₂O₇) = 1/60 mol; standardised against silver nitrate solution, Titripur^®, reag. USP
• 認証: reag. USP; traceable to NIST
• 品質水準: 200
• 製品種目: Titripur^®
• 形状: liquid
• 品質: Analyzed in our ISO 17025 accredited QC lab
• 反応適合性: reaction type: Redox Reactions
• テクニック: titration: suitable
• 保管温度: 15-25°C
• SMILES記法: [K+].[K+].[O-][Cr](=O)(=O)O[Cr]([O-])(=O)=O
• InChI: 1S/2Cr.2K.7O/q;;2*+1;;;;;;2*-1
• InChI Key: KMUONIBRACKNSN-UHFFFAOYSA-N

詳細

特徴および利点

Accreditation:
This volumetric solution is analyzed by our calibration laboratory D-K-15185-01-00 which is accredited according to DIN EN ISO/IEC 17025 for analysis of amount-of-substance concentrations in volumetric solutions by DAkkS (Deutsche Akkreditierungsstelle - German National Accreditation Body). The accreditation certificate can be found at www.sigmaaldrich.com/ISO17025.

包装

SKU-pack size numbers ending with a "3" are SmartChemicals with an RFID tag on the label for seamless data transfer to the instrument, e.g. xxxxxx1003 or xxxxxxx 4003. More information on www.sigmaaldrich.com/SmartChemicals

アナリシスノート

Form liquid
Amount-of-substance concentration 0.01658 - 0.01675 mol/L
Measurement uncertainty ± 0.00005 mol/L
Traceability NIST SRM

The concentration is determined by volumetric titration and refers to 20°C.
The amount-of-substance concentration of this volumetric solution is determined with standardized sodium thiosulfate solution (article number 1.09147). The sodium thiosulfate solution is standardized and traceable to a primary standard reference material (SRM) from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 136 potassium dichromate) by means of volumetric standard potassium iodate (article number 1.02404), certified reference material according to ISO 17034, analyzed by our accredited calibration laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO/IEC 17025. The uncertainty is expressed as expanded measurement uncertainty with a coverage factor k=2 covering a confidence level of 95%.

Note: The titer is a correction factor to correct for variations of the volumetric solution, the titration equipment, the temperature and other laboratory conditions. For correct titration results it is recommended to determine a titer with the laboratory specific equipment and under laboratory specific conditions directly after opening a new bottle and at regular time intervals.

法的情報

Titripur 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 - H350 - H360FD - H412
• 注意書き: P202 - P273 - P280 - P308 + P313 - P405 - P501
• 危険有害性の分類: Aquatic Chronic 3 - Carc. 1B - Muta. 1B - Repr. 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 3
• 引火点(°F): Not applicable
• 引火点(℃): Not applicable