Description
Catalogue Number 109115
Product Information
Grade Reag. USP
HS Code 3822 00 00
Quality Level MQ100
Applications
Application Potassium hydroxide solution in ethanol c(KOH) = 0.1 mol/l (0.1 N) Titripur® Reag. Ph Eur,Reag. USP. Potassium hydroxide solution in ethanol HS Code 3822 00 00, ph value 14 (H₂O, 20 °C).
Physicochemical Information
Density 0.836 g/cm3 (20 °C)
Explosion limit 3.5 – 15.0 %(V) (ethanol)
Flash point 12 °C (ethanol)
Ignition temperature 425 °C (ethanol)
pH value 14 (H₂O, 20 °C)
Safety Information according to GHS
Hazard Pictogram(s) Hazard Pictogram(s)
Hazard Pictogram(s)
Hazard Statement(s) H225: Highly flammable liquid and vapour.
H315: Causes skin irritation.
H319: Causes serious eye irritation.
Precautionary Statement(s) P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.
P240: Ground/bond container and receiving equipment.
P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P403 + P233: Store in a well-ventilated place. Keep container tightly closed.
Signal Word Danger
Storage class 3 Flammable liquids
WGK WGK 1 slightly hazardous to water
Disposal 1
Strongly contaminated halogen-free organic solvents: container A.
Safety Information
Hazard Symbols Hazard SymbolsIrritant
Hazard SymbolsFlammable
Categories of danger highly flammable, irritant
R Phrase R 11-36/38
Highly flammable.Irritating to eyes and skin.
S Phrase S 16
Keep away from sources of ignition – No smoking.
Storage and Shipping Information
Storage Store at +15°C to +25°C.
Transport Information
Declaration (railroad and road) ADR, RID UN 2924 , 3 (8), II
Declaration (transport by air) IATA-DGR UN 2924 , 3 (8), II
Declaration (transport by sea) IMDG-Code UN 2924 , 3 (8), II, Segregation Group: 18 (Alkalis)
Specifications
Form liquid
Amount-of-substance concentration 0.0995 – 0.1005
Measurement uncertainty +/- 0.0003
Traceability NIST SRM
Accreditation: This volumetric solution is certified according to DIN EN ISO/IEC 17025. Merck KGaA, Darmstadt, Germany is accredited as calibration laboratory D-K-15185-01-00 for amount-of-substance concentrations in volumetric solutions according to DIN EN ISO/IEC 17025 by DAkkS (Deutsche Akkreditierungsstelle). The accreditation certificate can be found at www.sigmaaldrich.com/ISO17025.
The concentration is determined by volumetric titration and refers to 20°C.
The certified value is traceable to a primary standard 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). This volumetric standard is certified by the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO 17025. The uncertainty is expressed as expanded measurement uncertainty with a coverage factor k=2 covering a confidence level of 95%. All measurements are carried out in the calibration laboratory D-K-15185-01-00 of Merck KGaA, Darmstadt, Germany.
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.