Description Catalogue Number 109970 Synonyms Hydrogen chloride solution Product Information HS Code 2806 10 00 Physicochemical Information Density 1.09 g/cm3 (20 °C) pH value <1 (H₂O, 20 °C) Safety Information according to GHS Hazard Pictogram(s) Hazard Statement(s) H290: May be corrosive to metals. H315: Causes skin irritation. H319: Causes serious eye irritation. H335: May cause respiratory irritation. Precautionary Statement(s) 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. Signal Word Warning Storage class 8B Non-combustible, corrosive hazardous materials WGK WGK 1 slightly water endangering Disposal 28 Aqueous solutions: Container D. Safety Information Hazard Symbols Irritant Categories of danger irritant R Phrase R 36/37/38 Irritating to eyes, respiratory system and skin. Storage and Shipping Information Storage Storage temperature: no restrictions. Transport Information Declaration (railroad and road) ADR, RID UN 1789 , 8, II Declaration (transport by air) IATA-DGR UN 1789 , 8, II Declaration (transport by sea) IMDG-Code UN 1789 , 8, II, Segregation Group: 1 (Acids) Specifications Concentration after dilution to 1 liter: c(HCl) = 1 mol/l Amount-of-substance concentration 1.000 mol/l The concentration of this solution was determined with 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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