1.09115
Potassium hydroxide solution
c(KOH) = 0.1 mol/L (1 N) in ethanol, reag. USP, ready-to-use volumetric solution for titration in non-aqueous media, Titripur®
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About This Item
Product Name
Potassium hydroxide solution in ethanol, c(KOH) = 0.1 mol/l (0.1 N), Titripur®, reag. USP
agency
reag. USP
Quality Segment
product line
Titripur®
form
liquid
autoignition temp.
425 °C (ethanol)
quality
Analyzed in our ISO 17025 accredited QC lab
expl. lim.
3.5-15.0 % (v/v) ethanol()
reaction suitability
reaction type: Acid-base reactions
concentration
0.1 M
technique(s)
titration: suitable
pH
14 (20 °C in H2O)
transition temp
flash point 12 °C (ethanol)
density
0.836 g/cm3 at 20 °C
storage temp.
15-25°C
Application
- Voltammetric Determination: Potassium hydroxide solution in ethanol is used in voltammetric determination of antioxidants in various matrices. A recent study demonstrated its application in the voltammetric determination of the antioxidant 2,6-di-tert-butyl-p-cresol (T501) in transformer oil using a graphite electrode. This method enhances the sensitivity and accuracy of antioxidant detection, crucial for ensuring the stability and performance of oils and other industrial fluids (Zhou et al., Analytical Letters, 2021).
Features and Benefits
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.
ChemiSphere™ App for Digital Data Transfer to OMNIS Titration Instruments from Metrohm
Discover the ChemiSphere™ App for secure, rapid data transfer to OMNIS titrators, enhancing efficiency in the titration workflow with Titripur® and Aquastar® reagents. (add a link to this page: ChemiSphere App for Digital Reagent Data Transfer)
SmartChemicals for Digital Data Transfer to Mettler Toledo Titration Instruments
Explore digital data transfer with our SmartChemicals for Mettler Toledo titrators—fast, easy, and safe, accelerating the titration process with Titripur®, Aquastar® reagents, and Certipur® and Aquastar® standards. (add a link to this page: Supelco® SmartChemicals for Titration))
Packaging
Analysis Note
Amount-of-substance concentration 0.0995 - 0.1005 mol/L
Measurement uncertainty ± 0.0003 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 traceable to a primary standard reference material (SRM) from the National Institute of Standards and Technology, Gaithersburg, USA (NIST SRM 84 potassium hydrogen phthalate) by means of volumetric standard potassium hydrogen phthalate (article number 1.02400), 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.
Legal Information
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Danger
Hazard Classifications
Eye Irrit. 2 - Flam. Liq. 2 - Met. Corr. 1 - Skin Irrit. 2
Storage Class
3 - Flammable liquids
flash_point_f
55.4 °F - (ethanol)
flash_point_c
13 °C - (ethanol)
hcodes
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
Substances Subject to be Indicated Names
ishl_indicated
Substances Subject to be Notified Names
ishl_notified
Group 4: Flammable liquids + Alcohols + Hazardous rank II
fsl
Certificates of Analysis (COA)
Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.
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