1.09928

Potassium dichromate solution

c(K₂Cr₂O₇) = 1/₆₀ mol/l (0.1 N), concentrate for preparing 1000 mL volumetric solution for titration, Titrisol^®

• Synonyme(s) : K₂Cr₂O₇ Calibration Solution
• UNSPSC Code: 12352302
• NACRES: NA.21
• Grade: reagent grade
• Form: liquid
• Solubility: water: soluble

Propriétés

• Nom du produit: Potassium dichromate solution, for 1000 ml, c(K₂Cr₂O₇) = 1/₆₀ mol/l (0.1 N) Titrisol^®
• Quality Segment: 100
• 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

Description

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.

Other Notes

Replaces: PX1443-6

Legal Information

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

Informations sur la sécurité

• signalword: Danger
• pcodes: P210 - P273 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338
• 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
• Classe de stockage: 5.1B - Oxidizing hazardous materials
• wgk: WGK 3
• flash_point_f: Not applicable
• flash_point_c: Not applicable
• pictograms: GHS03,GHS06,GHS08,GHS05,GHS09
• hcodes: H272,H302,H314,H317,H331,H334,H335,H340,H350,H360FD,H373,H410