1.09928
重铬酸钾溶液
c(K₂Cr₂O₇) = 1/₆₀ mol/l (0.1 N), concentrate for preparing 1000 mL volumetric solution for titration, Titrisol®
别名:
K₂Cr₂O₇ Calibration Solution
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关于此项目
UNSPSC Code:
12352302
NACRES:
NA.21
Grade:
reagent grade
Form:
liquid
Solubility:
water: soluble
产品名称
重铬酸钾溶液, for 1000 ml, c(K2Cr2O7) = 1/60 mol/l (0.1 N) Titrisol®
Quality Segment
grade
reagent grade
product line
Titrisol®
form
liquid
reaction suitability
reaction type: Redox Reactions
concentration
1/60 M
technique(s)
titration: suitable
pH
4.1 (20 °C in H2O)
solubility
water: soluble
density
1.06 g/cm3 at 20 °C
storage temp.
15-25°C
Application
- Facile synthesis of heterojunction of MXenes/TiO2 nanoparticles: This research involves the use of potassium dichromate solution in the synthesis of advanced nanomaterials for environmental remediation, particularly for the removal of hexavalent chromium from water, underscoring its significance in environmental science and nanotechnology (Wang H et al., 2020).
Analysis Note
Concentration after dilution to 1 liter: c(K₂Cr₂O₇) = 1/60 mol/l
Amount-of-substance concentration: 1/60 mol/l
The concentration 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 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 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.
Amount-of-substance concentration: 1/60 mol/l
The concentration 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 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 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.
Other Notes
Replaces: PX1443-6
Legal Information
Titrisol is a registered trademark of Merck KGaA, Darmstadt, Germany
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Danger
Hazard Classifications
Acute Tox. 3 Inhalation - Acute Tox. 4 Oral - Aquatic Acute 1 - Aquatic Chronic 2 - Carc. 1B - Eye Dam. 1 - Muta. 1B - Ox. Liq. 2 - Repr. 1B - Resp. Sens. 1 - Skin Corr. 1B - Skin Sens. 1 - STOT RE 2 Inhalation - STOT SE 3
target_organs
Cardio-vascular system, Respiratory system
存储类别
5.1B - Oxidizing hazardous materials
wgk
WGK 3
flash_point_f
Not applicable
flash_point_c
Not applicable
