124505 Osmium(VIII) oxide

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      Replacement Information
      Replacement InformationIn North America 124505.0001 replaces OX0260-5, material is similar, pack size is same
      In North America 124505.0500 replaces OX0260-3, material is similar, pack size is same

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          Glass ampoule 100 mg
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          Catalogue Number124505
          ReplacesOX0260-5; OX0260-3
          SynonymsOsmic acid, Osmiumtetraoxide
          DescriptionOsmium(VIII) oxide
          OverviewOsmium tetroxide for microscopy can be used to visualize unsaturated lipids. A part of the lipids is immediately blackened by the influence of osmic acid solution. The immediate black coloration results from the -C=C- double bond of the unsaturated fatty acid. The fatty acids that are made brownish at first can be blackened by treatment with 60-70% alcohol. For electron microscopy or semithin sectioning the glutardialdehyde-fixed specimens are post-fixed with osmium(VIII) oxide. Lipid inclusions appear black on a yellow to brown background. It is an IVD / CE registered product
          Product Information
          CAS number20816-12-0
          EC index number076-001-00-5
          EC number244-058-7
          Hill FormulaO₄Os
          Chemical formulaOsO₄
          Molar Mass254.19 g/mol
          HS Code2843 90 90
          ApplicationUsed to visualize unsaturated lipids in electron microscopy or semi-thin sectioning
          Biological Information
          Physicochemical Information
          Boiling point130 °C (1013 hPa)
          Density4.91 g/cm3 (20 °C)
          Melting Point40 °C
          pH value6 (25 g/l, H₂O, 20 °C)
          Vapor pressure10 hPa (20 °C)
          Bulk density1500 kg/m3
          Solubility65 g/l
          Materials Information
          Toxicological Information
          LD 50 oralLD50 Rat 15 mg/kg
          Safety Information according to GHS
          Hazard Pictogram(s) Hazard Pictogram(s)
          Hazard Pictogram(s)
          Hazard Statement(s)H300 + H310 + H330: Fatal if swallowed, in contact with skin or if inhaled.
          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.
          P302 + P352: IF ON SKIN: Wash with plenty of soap and water.
          P304 + P340: IF INHALED: Remove victim to fresh air and keep at rest in a position comfortable for breathing.
          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.
          Signal WordDanger
          Storage class6.1B Non-combustible, acute toxic Cat. 1 and 2 / very toxic hazardous materials
          WGKWGK 3 highly hazardous to water
          Residues containing valuable recoverable metals should be forwarded for recycling. Container H.
          Safety Information
          Hazard Symbols Hazard SymbolsVery toxic
          Categories of dangervery toxic, corrosive
          R PhraseR 26/27/28-34
          Very toxic by inhalation, in contact with skin and if swallowed.Causes burns.
          S PhraseS 7/9-26-45
          Keep container tightly closed and in a well-ventilated place.In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.In case of accident or if you feel unwell, seek medical advice immediately (show the label where possible).
          Product Usage Statements
          Storage and Shipping Information
          StorageStore at +15°C to +25°C.
          Packaging Information
          Transport Information
          Declaration (railroad and road) ADR, RIDUN 2471 , 6.1, I
          Declaration (transport by air) IATA-DGRUN 2471 , 6.1, I
          Declaration (transport by sea) IMDG-CodeUN 2471 , 6.1, I, Marine Pollutant: P
          Supplemental Information
          Identity (Raman-spectrum)conforms