MERCK 109114.1000 Potassium Hydroxide Solution in Ethanol 0,5 mol/L(0.5N)
| Description |
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| Catalogue Number | 109114 |
| Product Information |
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| Grade | Reag. Ph Eur |
| HS Code | 3822 90 00 |
| Quality Level | MQ200 |
| Applications |
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| Application | Potassium hydroxide solution in ethanol c(KOH) = 0.5 mol/l (0.5 N) Titripur® Reag. Ph Eur,Reag. USP. ph value 14 (H₂O, 20 °C). |
| Physicochemical Information |
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| Boiling point | 78.3 °C (1013 hPa) (ethanol) |
| Density | 0.85 g/cm3 (20 °C) |
| Explosion limit | 3.5 - 15.0 %(V) (ethanol) |
| Flash point | 12 °C (ethanol) |
| Ignition temperature | 425 °C (ethanol) |
| Melting Point | -114.5 °C (ethanol) |
| pH value | 14 (H₂O, 20 °C) |
| Vapor pressure | 59 hPa (20 °C) |
| Safety Information according to GHS |
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| Hazard Pictogram(s) | |
| Hazard Statement(s) | H225: Highly flammable liquid and vapour.H290: May be corrosive to metals.H314: Causes severe skin burns and eye damage. |
| Precautionary Statement(s) | P210: Keep away from heat, hot surfaces, sparks, open flames and other ignition sources. No smoking.P233: Keep container tightly closed.P234: Keep only in original packaging.P280: Wear protective gloves/ protective clothing/ eye protection/ face protection/ hearing protection.P303 + P361 + P353: IF ON SKIN (or hair): Take off immediately all contaminated clothing. Rinse skin with 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 | 1Strongly contaminated halogen-free organic solvents: container A. |
| Safety Information |
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| Categories of danger | highly flammable, corrosive |
| Storage and Shipping Information |
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| Storage | Store at +15°C to +25°C. |
| Transport Information |
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| 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 |
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| Form | liquid |
| Amount-of-substance concentration | 0.4975 - 0.5025 mol/l |
| Measurement uncertainty | +/- 0.0015 |
| Traceability | NIST SRM |
| The stated batch and specification values for the amount of substance concentration are valid at the time of bottling.The amount-of-substance concentration of this volumetric solution is analyzed by our quality control laboratory of Merck KGaA, Darmstadt, Germany according to DIN EN ISO/IEC 17025.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 350 benzoic acid) by means of volumetric standard benzoic acid (article number 1.02401), 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 concentration of this volumetric solution decreases over time, due to its chemical properties. If high accuracy is expected, the titer, being a corrective factor that compensates for this effect as well as variations of equipment, personal handling, temperature and other laboratory conditions, must be determined directly after opening a new bottle and should be verified at regular intervals. |
| Global Trade Item Number |
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| Catalogue Number | GTIN |
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| 1091141000 | 04022536110745 |
| 1091141003 | 04054839533679 |
