Sulfuric acid 95-97% 1.00731.2500 merck

Description Catalogue Number 100731 Description Sulfuric acid 95-97% Product Information CAS number 7664-93-9 EC index number 016-020-00-8 EC number 231-639-5 Grade ISO Hill Formula H₂O₄S Chemical formula H₂SO₄ Molar Mass 98.07 g/mol HS Code 2807 00 00 Quality Level MQ300 Physicochemical Information Density 1.84 g/cm3 (20 °C) Melting Point -20 °C pH value 0.3 (49 g/l, H₂O, 25 °C) Vapor pressure 0.0001 hPa (20 °C) Safety Information according to GHS Hazard Pictogram(s) Hazard Pictogram(s) Hazard Statement(s) H290: May be corrosive to metals. H314: Causes severe skin burns and eye damage. Precautionary Statement(s) 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. P304 + P340 + P310: IF INHALED: Remove person to fresh air and keep comfortable for breathing. Immediately call a POISON CENTER/doctor. P305 + P351 + P338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. P363: Wash contaminated clothing before reuse. Signal Word Danger RTECS WS5600000 Storage class 8B Non-combustible, corrosive hazardous materials WGK WGK 1 slightly hazardous to water 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. Safety Information Categories of danger corrosive Storage and Shipping Information Storage NoTempLimit Transport Information Declaration (railroad and road) ADR, RID UN 1830 , 8, II Declaration (transport by air) IATA-DGR UN 1830 , 8, II Declaration (transport by sea) IMDG-Code UN 1830 , 8, II, Segregation Group: 1 (Acids) Specifications Assay (alkalimetric) 95.0 - 97.0 % Color ≤ 10 Hazen Chloride (Cl) ≤ 0.1 ppm Nitrate (NO₃) ≤ 0.2 ppm Phosphate (PO₄) ≤ 0.5 ppm Ag (Silver) ≤ 0.010 ppm Al (Aluminium) ≤ 0.050 ppm As (Arsenic) ≤ 0.010 ppm Au (Gold) ≤ 0.050 ppm B (Boron) ≤ 0.050 ppm Ba (Barium) ≤ 0.050 ppm Be (Beryllium) ≤ 0.010 ppm Bi (Bismuth) ≤ 0.050 ppm Ca (Calcium) ≤ 0.100 ppm Cd (Cadmium) ≤ 0.010 ppm Co (Cobalt) ≤ 0.010 ppm Cr (Chromium) ≤ 0.020 ppm Cu (Copper) ≤ 0.010 ppm Fe (Iron) ≤ 0.100 ppm Ga (Gallium) ≤ 0.050 ppm Ge (Germanium) ≤ 0.020 ppm In (Indium) ≤ 0.050 ppm K (Potassium) ≤ 0.100 ppm Li (Lithium) ≤ 0.010 ppm Mg (Magnesium) ≤ 0.050 ppm Mn (Manganese) ≤ 0.010 ppm Mo (Molybdenum) ≤ 0.020 ppm Na (Sodium) ≤ 0.300 ppm NH₄ (Ammonium) ≤ 1 ppm Ni (Nickel) ≤ 0.020 ppm Pb (Lead) ≤ 0.010 ppm Pt (Platinum) ≤ 0.100 ppm Sn (Tin) ≤ 0.050 ppm Sr (Strontium) ≤ 0.010 ppm Ti (Titanium) ≤ 0.020 ppm Tl (Thallium) ≤ 0.020 ppm V (Vanadium) ≤ 0.010 ppm Zn (Zinc) ≤ 0.050 ppm Zr (Zirconium) ≤ 0.020 ppm Substances reducing potassium permanganate (as SO₂) ≤ 2 ppm Residue on ignition ≤ 3 ppm

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