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Merck - 8181120100 - Sulfur Trioxide Pyridine Complex For Synthesis, 100 g

  • MFR SKU: 8181120100
  • ITEM #: 7164351
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ITEM #: 7164351
CAS No.: 26412-87-3
UN No.: UN3261
pH: (H2O) acidic
Solubility: (20°C) (decomposition)
Melting Point: 155 - 165°C
Molar Mass: 159.16 g/mol
Bulk Density: 600 kg/m3
Ignition Point: >350°C
pH Range : (H2O) acidic
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Merck - 8181120100 - Sulfur Trioxide Pyridine Complex For Synthesis, 100 g

  • Item #: 7164351
  • MFR SKU: 8181120100
  • Catalogue Number 818112
  • Sulfur trioxide pyridine complex
  • CAS number 26412-87-3
  • EC number 247-683-3
  • Hill Formula CHN * OS
  • Chemical formula CHN * OS
  • Molar Mass 159.16 g/mol
  • HS Code 2942 00 00
  • Structure formula Image
  • Quality Level MQ200
  • Application Sulfur trioxide pyridine complex for synthesis. CAS 26412-87-3, EC Number 247-683-3, chemical formula CHN * OS.
  • Ignition temperature >350 ° C
  • Melting Point 155 - 165 ° C
  • Bulk density 600 kg/m3
  • LD 50 oral LD50 Rat 500 - 2000 mg/kg
  • Hazard Pictogram(s)
  • Hazard Statement(s) H302: Harmful if swallowed.
  • H315: Causes skin irritation.
  • H319: Causes serious eye irritation.
  • Precautionary Statement(s) P264: Wash skin thoroughly after handling.
  • P270: Do not eat, drink or smoke when using this product.
  • P280: Wear protective gloves/ eye protection/ face protection.
  • P301 + P312: IF SWALLOWED: Call a POISON CENTER/doctor if you feel unwell.
  • P302 + P352: IF ON SKIN: Wash with plenty of 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 8A Combustible, corrosive hazardous materials
  • WGK WGK 3 highly 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.
  • Categories of danger harmful, irritant
  • Storage Store below +30° C.
  • Declaration (railroad and road) ADR, RID UN 3261 , 8, II
  • Declaration (transport by air) IATA-DGR UN 3261 , 8, II
  • Declaration (transport by sea) IMDG-Code UN 3261 , 8, II, Segregation Group: 1 (Acids)
  • Assay (acidimetric) ≥ 97.0 %

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