Description Catalogue Number 109949 Product Information HS Code 3822 00 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. Storage class 8B Non-combustible, corrosive hazardous materials WGK WGK 1 slightly water endangering Disposal 12 Inorganic acids and anhydrides thereof should first be diluted or hydrolyzed by stirring carefully into ice water and then neutralized (protective gloves, fume cupboard!) with sodium hydroxide solution (Cat. No. 105587). Before filling into container D, check the pH with pH universal indicator strips (Cat. No. 109535). Fuming sulfuric acid should be carefully stirred dropwise into 40 % sulfuric acid (Cat. No. 109286). Ensure that plenty of ice is available for cooling! When sufficiently cool, treat the highly concentrated sulfuric acid as described above. Analogous to this procedure, other anhydrides can be converted into their corresponding acids. Acid gases (e.g. hydrogen halide, chlorine, phosgene, sulfur dioxide) can be introduced into dilute sodium hydroxide solution and after neutralization disposed of in container D. 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 content (Mg) 1000 mg / Ampoule Determination method: Complexometric titration. (traceable to NIST - SRM 682) Accuracy of the method: +/- 2 mg
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