1.60330

Oxalic acid solution

c(CsH₂O₄) = 0.05 mol, reag. USP, ready-to-use volumetric solution for titration, Titriplex^®

• Formula condensata: HOOCCOOH
• Numero CAS: 144-62-7
• Peso molecolare: 90.03
• Numero MDL: MFCD00002573
• Codice UNSPSC: 12352305

Proprietà

• Nome del prodotto: Oxalic acid solution, c(CsH₂O₄) = 0.05 mol; standardised against Potassium permangante solution, Titripur^®, reag. USP
• agenzia: reag. USP; traceable to NIST
• Livello qualitativo: 200
• Nome Commerciale: Titripur^®
• Stato: liquid
• Qualità: Analyzed in our ISO 17025 accredited QC lab
• Impiego in reazioni chimiche: reaction type: Acid-base reactions
• tecniche: titration: suitable
• Temperatura di conservazione: 15-25°C
• Stringa SMILE: OC(=O)C(O)=O
• InChI: 1S/C2H2O4/c3-1(4)2(5)6/h(H,3,4)(H,5,6); MUBZPKHOEPUJKR-UHFFFAOYSA-N

Descrizione

Caratteristiche e vantaggi

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.

Confezionamento

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

Risultati analitici

Form liquid
Amount-of-substance concentration 0.04975 - 0.05025 mol/L
Measurement uncertainty ± 0.00015 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 potassium permanganate solution (article number 1.09122). The potassium permanganate solution is standardized and traceable to a primary standard reference material (SRM) from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 8040 di-sodium oxalate) by means of volumetric standard di-sodium oxalate (article number 1.02407), 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.

Note legali

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

Informazioni sulla sicurezza

• Codice della classe di stoccaggio: 12 - Non Combustible Liquids
• Classe di pericolosità dell'acqua (WGK): nwg
• Punto d’infiammabilità (°F): Not applicable
• Punto d’infiammabilità (°C): Not applicable