Description Catalogue Number 109959 Product Information HS Code 2815 12 00 Physicochemical Information Density 1.09 g/cm3 (20 °C) pH value 13.8 (H₂O, 20 °C) Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H290: May be corrosive to metals. H314: Causes severe skin burns and eye damage. Precautionary Statement(s) P280: Wear protective gloves/ protective clothing/ eye protection/ face protection. P301 + P330 + P331: IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P308 + P310: IF exposed or concerned: immediately call a POISON CENTER or doctor/ physician. Storage class 8B Non-combustible, corrosive hazardous materials WGK WGK 1 slightly water endangering Disposal 13 Bases and alcoholates should be diluted if necessary by carefully stirring them into water and then neutralized (protective gloves, fume cupboard!) with hydrochloric acid (Cat. No. 100312). Before placing in container D, check the pH with pH universal indicator strips (Cat. No. 109535). Safety Information Hazard Symbols Corrosive Categories of danger corrosive R Phrase R 35 Causes severe burns. S Phrase S 26-36/37/39-45 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.Wear suitable protective clothing, gloves and eye/face protection.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible). Storage and Shipping Information Storage Storage temperature: no restrictions. Transport Information Declaration (railroad and road) ADR, RID UN 1824 , 8, II Declaration (transport by air) IATA-DGR UN 1824 , 8, II Declaration (transport by sea) IMDG-Code UN 1824 , 8, II, Segregation Group: 18 (Alkalis) Specifications Concentration after dilution to 1 liter: c(NaOH) = 0.1 mol/l Amount-of-substance concentration 0.1000 mol/l The concentration of this solution was determined with hydrochloric acid standard solution (article number 1.09060) standardized against volumetric standard Tris(hydroxymethyl)aminomethane (article number 1.02408). 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 723e (NIST: National Institute of Standards and Technology, USA) by means of volumetric standard Tris(hydroxmethyl)aminomethane, measured in the accredited calibration laboratory of Merck KGaA, Darmstadt, Germany in accordance to DIN EN ISO/IEC 17025.
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